added ros-gz-sim and ros-gz-bridge to packages

README.md

@@ -16,9 +16,6 @@ You will use these packages to launch all rover-side ROS2 nodes.
   - [Connecting the GuliKit Controller](#connecting-the-gulikit-controller)
 - [Common Problems/Toubleshooting](#common-problemstroubleshooting)
 - [Packages](#packages)
-- [Graphs](#graphs)
-  - [Full System](#full-system)
-  - [Individual Nodes](#individual-nodes)
 - [Maintainers](#maintainers)
 
 ## Software Prerequisites
@@ -60,33 +57,6 @@ $ ros2 launch anchor_pkg rover.launch.py  # Must be run on a computer connected
 $ ros2 run headless_pkg headless_full  # Optionally run in a separate shell on the same or different computer.
 ```
 
-### Using the Mock Connector
-
-Anchor provides a mock connector meant for testing and scripting purposes. You can select the mock connector by running anchor with this command:
-
-```bash
-$ ros2 launch anchor_pkg rover.launch.py connector:="mock"
-```
-
-To see all data that would be sent over the CAN network (and thus to the microcontrollers), use this command:
-
-```bash
-$ ros2 topic echo /anchor/to_vic/debug
-```
-
-To send data to the mock connector (as if you were a ROS2 node), use the normal relay topic:
-
-```bash
-$ ros2 topic pub /anchor/to_vic/relay astra_msgs/msg/VicCAN '{mcu_name: "core", command_id: 50, data: [0.0, 2.0, 0.0, 1.0]}'
-
-```
-
-To send data to the mock connector (as if you were a microcontroller), publish to the dedicated topic:
-
-```bash
-$ ros2 topic pub /anchor/from_vic/mock_mcu astra_msgs/msg/VicCAN '{mcu_name: "arm", command_id: 55, data: [0.0, 450.0, 900.0, 0.0]}'
-```
-
 ### Testing Serial
 
 You can fake the presence of a Serial device (i.e., MCU) by using the following command:
@@ -95,31 +65,10 @@ You can fake the presence of a Serial device (i.e., MCU) by using the following
 $ socat -dd -v pty,rawer,crnl,link=/tmp/ttyACM9 pty,rawer,crnl,link=/tmp/ttyOUT
 ```
 
-When you go to run anchor, use the `serial_override` ROS2 parameter to point it to the fake serial port, like so:
+When you go to run anchor, use the `PORT_OVERRIDE` environment variable to point it to the fake serial port, like so:
 
 ```bash
-$ ros2 launch anchor_pkg rover.launch.py connector:=serial serial_override:=/tmp/ttyACM9
+$ PORT_OVERRIDE=/tmp/ttyACM9 ros2 launch anchor_pkg rover.launch.py
-```
-
-### Testing CAN
-
-You can create a virtual CAN network by using the following commands to create and then enable it:
-
-```bash
-sudo ip link add dev vcan0 type vcan
-sudo ip link set vcan0 up
-```
-
-When you go to run anchor, use the `can_override` ROS2 parameter to point it to the virtual CAN network, like so:
-
-```bash
-$ ros2 launch anchor_pkg rover.launch.py connector:=can can_override:=vcan0
-```
-
-Once you're done, you should delete the virtual network so that anchor doesn't get confused if you plug in a real CAN adapter:
-
-```bash
-$ sudo ip link delete vcan0
 ```
 
 ### Connecting the GuliKit Controller
@@ -191,40 +140,6 @@ A: To find a microcontroller to talk to, Anchor sends a ping to every Serial por
 - [ros2\_interfaces\_pkg](./src/ros2_interfaces_pkg) - Contains custom message types for communication between basestation and the rover over ROS2. (being renamed to `astra_msgs`).
 - [servo\_arm\_twist\_pkg](./src/servo_arm_twist_pkg) - A temporary node to translate controller state from `ros2_joy` to `Twist` messages to control the Arm via IK.
 
-## Graphs
-
-### Full System
-
-> **Anchor stand-alone** (`ros2 launch anchor_pkg rover.launch.py`)
->
-> ![rqt_graph of Anchor by itself, ran with command: ros2 launch anchor_pkg rover.launch.py](./docs-resources/graph-anchor-standalone.png)
-
-> **Anchor with [basestation-classic](https://github.com/SHC-ASTRA/basestation-classic)**
->
-> ![rqt_graph of Anchor ran with the same command as above, talking to basestation-classic](./docs-resources/graph-anchor-w-basestation-classic.png)
-
-> **Anchor with Headless** (`ros2 run headless_pkg headless_full`)
->
-> ![rqt_graph of Anchor ran with Headless](./docs-resources/graph-anchor-w-headless.png)
-
-### Individual Nodes
-
-> **Anchor** (`ros2 run anchor_pkg anchor`)
->
-> ![rqt_graph of Anchor node running by itself](./docs-resources/graph-anchor-anchor-standalone.png)
-
-> **Core** (`ros2 run core_pkg core --ros-args -p launch_mode:=anchor`)
->
-> ![rqt_graph of Core node running by itself](./docs-resources/graph-anchor-core-standalone.png)
-
-> **Arm** (`ros2 run arm_pkg arm --ros-args -p launch_mode:=anchor`)
->
-> ![rqt_graph of Arm node running by itself](./docs-resources/graph-anchor-arm-standalone.png)
-
-> **Bio** (`ros2 run bio_pkg bio --ros-args -p launch_mode:=anchor`)
->
-> ![rqt_graph of Bio node running by itself](./docs-resources/graph-anchor-bio-standalone.png)
-
 ## Maintainers
 
 | Name | Email | Discord |

auto_start/auto_start_anchor.sh

@@ -15,11 +15,7 @@ echo "[INFO] Network interface is up!"
 echo "[INFO] Starting ROS node..."
 
 # Source ROS 2 Humble setup script
-if command -v nixos-rebuild; then
+source /opt/ros/humble/setup.bash
-    echo "[INFO] running on NixOS"
-else
-    source /opt/ros/humble/setup.bash
-fi
 
 # Source your workspace setup script
 source $SCRIPT_DIR/../install/setup.bash

auto_start/auto_start_headless_full.sh

@@ -15,11 +15,7 @@ echo "[INFO] Network interface is up!"
 echo "[INFO] Starting ROS node..."
 
 # Source ROS 2 Humble setup script
-if command -v nixos-rebuild; then
+source /opt/ros/humble/setup.bash
-    echo "[INFO] running on NixOS"
-else
-    source /opt/ros/humble/setup.bash
-fi
 
 # Source your workspace setup script
 source $SCRIPT_DIR/../install/setup.bash

auto_start/start_rosbag.sh

@@ -17,11 +17,7 @@ done
 echo "[INFO] Network interface is up!"
 
 
-if command -v nixos-rebuild; then
+source /opt/ros/humble/setup.bash
-    echo "[INFO] running on NixOS"
-else
-    source /opt/ros/humble/setup.bash
-fi
 source $ANCHOR_WS/install/setup.bash
 [[ -f $AUTONOMY_WS/install/setup.bash ]] && source $AUTONOMY_WS/install/setup.bash
 

flake.lock

@@ -24,27 +24,27 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1770108954,
+        "lastModified": 1761810010,
-        "narHash": "sha256-VBj6bd4LPPSfsZJPa/UPPA92dOs6tmQo0XZKqfz/3W4=",
+        "narHash": "sha256-o0wJKW603SiOO373BTgeZaF6nDxegMA/cRrzSC2Cscg=",
         "owner": "lopsided98",
         "repo": "nix-ros-overlay",
-        "rev": "3d05d46451b376e128a1553e78b8870c75d7753a",
+        "rev": "e277df39e3bc6b372a5138c0bcf10198857c55ab",
         "type": "github"
       },
       "original": {
         "owner": "lopsided98",
-        "ref": "develop",
+        "ref": "master",
         "repo": "nix-ros-overlay",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1759381078,
+        "lastModified": 1744849697,
-        "narHash": "sha256-gTrEEp5gEspIcCOx9PD8kMaF1iEmfBcTbO0Jag2QhQs=",
+        "narHash": "sha256-S9hqvanPSeRu6R4cw0OhvH1rJ+4/s9xIban9C4ocM/0=",
-        "owner": "NixOS",
+        "owner": "lopsided98",
         "repo": "nixpkgs",
-        "rev": "7df7ff7d8e00218376575f0acdcc5d66741351ee",
+        "rev": "6318f538166fef9f5118d8d78b9b43a04bb049e4",
         "type": "github"
       },
       "original": {
@@ -60,8 +60,7 @@
         "nixpkgs": [
           "nix-ros-overlay",
           "nixpkgs"
-        ],
+        ]
-        "treefmt-nix": "treefmt-nix"
       }
     },
     "systems": {
@@ -78,26 +77,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "treefmt-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1773297127,
-        "narHash": "sha256-6E/yhXP7Oy/NbXtf1ktzmU8SdVqJQ09HC/48ebEGBpk=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "71b125cd05fbfd78cab3e070b73544abe24c5016",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -2,13 +2,8 @@
   description = "Development environment for ASTRA Anchor";
 
   inputs = {
-    nix-ros-overlay.url = "github:lopsided98/nix-ros-overlay/develop";
+    nix-ros-overlay.url = "github:lopsided98/nix-ros-overlay/master";
     nixpkgs.follows = "nix-ros-overlay/nixpkgs"; # IMPORTANT!!!
-
-    treefmt-nix = {
-      url = "github:numtide/treefmt-nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
 
   outputs =
@@ -16,14 +11,19 @@
       self,
       nix-ros-overlay,
       nixpkgs,
-      ...
+    }:
-    }@inputs:
     nix-ros-overlay.inputs.flake-utils.lib.eachDefaultSystem (
       system:
       let
         pkgs = import nixpkgs {
           inherit system;
           overlays = [ nix-ros-overlay.overlays.default ];
+          config = {
+            # Allow the insecure freeimage package
+            permittedInsecurePackages = [
+              "freeimage-3.18.0-unstable-2024-04-18"
+            ];
+          };
         };
       in
       {
@@ -31,10 +31,9 @@
           name = "ASTRA Anchor";
           packages = with pkgs; [
             colcon
-            (python313.withPackages (
+            (python312.withPackages (
               p: with p; [
                 pyserial
-                python-can
                 pygame
                 scipy
                 crccheck
@@ -42,7 +41,7 @@
               ]
             ))
             (
-              with rosPackages.humble;
+              with rosPackages.jazzy;
               buildEnv {
                 paths = [
                   ros-core
@@ -63,23 +62,22 @@
                   control-msgs
                   control-toolbox
                   moveit-core
-                  moveit-planners
                   moveit-common
                   moveit-msgs
                   moveit-ros-planning
                   moveit-ros-planning-interface
-                  moveit-ros-visualization
                   moveit-configs-utils
                   moveit-ros-move-group
                   moveit-servo
                   moveit-simple-controller-manager
-                  topic-based-ros2-control
                   pilz-industrial-motion-planner
                   pick-ik
                   ompl
-                  joy
-                  ros2-controllers
                   chomp-motion-planner
+                  joy
+                  ros-gz-sim
+                  ros-gz-bridge
+                  # ros2-controllers nixpkg does not build :(
                 ];
               }
             )
@@ -88,10 +86,12 @@
             # Display stuff
             export DISPLAY=''${DISPLAY:-:0}
             export QT_X11_NO_MITSHM=1
+	    if [[ ! $DIRENV_IN_ENVRC ]]; then
+              eval "$(${pkgs.python3Packages.argcomplete}/bin/register-python-argcomplete ros2)"
+              eval "$(${pkgs.python3Packages.argcomplete}/bin/register-python-argcomplete colcon)"
+            fi
           '';
         };
-
-        formatter = (inputs.treefmt-nix.lib.evalModule pkgs ./treefmt.nix).config.build.wrapper;
       }
     );
 

src/anchor_pkg/anchor_pkg/anchor_node.py

@@ -1,29 +1,26 @@
-from warnings import deprecated
 import rclpy
 from rclpy.node import Node
-from rclpy.executors import ExternalShutdownException
+from std_srvs.srv import Empty
-from rcl_interfaces.msg import ParameterDescriptor, ParameterType
 
+import signal
+import time
 import atexit
 
-from .connector import (
+import serial
-    Connector,
+import os
-    MockConnector,
+import sys
-    SerialConnector,
-    CANConnector,
-    NoValidDeviceException,
-    NoWorkingDeviceException,
-)
-from .convert import string_to_viccan
 import threading
+import glob
 
+from std_msgs.msg import String, Header
 from astra_msgs.msg import VicCAN
-from std_msgs.msg import String
+
+serial_pub = None
+thread = None
 
 
-class Anchor(Node):
+"""
-    """
+Publishers:
-    Publishers:
   * /anchor/from_vic/debug
     - Every string received from the MCU is published here for debugging
   * /anchor/from_vic/core
@@ -32,219 +29,254 @@ class Anchor(Node):
     - VicCAN messages for Arm node
   * /anchor/from_vic/bio
     - VicCAN messages for Bio node
-    * /anchor/to_vic/debug
-        - A string copy of the messages published to ./relay are published here
 
-    Subscribers:
+Subscribers:
   * /anchor/from_vic/mock_mcu
-        - For testing without an actual MCU, publish ViCAN messages here as if they came from an MCU
+    - For testing without an actual MCU, publish strings here as if they came from an MCU
   * /anchor/to_vic/relay
     - Core, Arm, and Bio publish VicCAN messages to this topic to send to the MCU
   * /anchor/to_vic/relay_string
-        - Send raw strings to connectors. Does not work for connectors that require conversion (like CANConnector)
+    - Publish raw strings to this topic to send directly to the MCU for debugging
-    * /anchor/relay
+"""
-        - Legacy method for talking to connectors. Takes String as input, but does not send the raw strings to connectors.
-          Instead, it converts them to VicCAN messages first.
-    """
 
-    connector: Connector
 
+class SerialRelay(Node):
     def __init__(self):
-        super().__init__("anchor_node")
+        # Initalize node with name
+        super().__init__("anchor_node")  # previously 'serial_publisher'
 
-        logger = self.get_logger()
+        # Loop through all serial devices on the computer to check for the MCU
-
+        self.port = None
-        # ROS2 Parameter Setup
+        if port_override := os.getenv("PORT_OVERRIDE"):
-
+            self.port = port_override
-        self.declare_parameter(
+        ports = SerialRelay.list_serial_ports()
-            "connector",
+        for i in range(4):
-            "auto",
+            if self.port is not None:
-            ParameterDescriptor(
+                break
-                name="connector",
+            for port in ports:
-                description="Declares which MCU connector should be used. Defaults to 'auto'.",
-                type=ParameterType.PARAMETER_STRING,
-                additional_constraints="Must be 'serial', 'can', 'mock', or 'auto'.",
-            ),
-        )
-
-        self.declare_parameter(
-            "can_override",
-            "",
-            ParameterDescriptor(
-                name="can_override",
-                description="Overrides which CAN channel will be used. Defaults to ''.",
-                type=ParameterType.PARAMETER_STRING,
-                additional_constraints="Must be a valid CAN network that shows up in `ip link show`.",
-            ),
-        )
-
-        self.declare_parameter(
-            "serial_override",
-            "",
-            ParameterDescriptor(
-                name="serial_override",
-                description="Overrides which serial port will be used. Defaults to ''.",
-                type=ParameterType.PARAMETER_STRING,
-                additional_constraints="Must be a valid path to a serial device file that shows up in `ls /dev/tty*`.",
-            ),
-        )
-
-        # Determine which connector to use. Options are Mock, Serial, and CAN
-        connector_select = (
-            self.get_parameter("connector").get_parameter_value().string_value
-        )
-        can_override = (
-            self.get_parameter("can_override").get_parameter_value().string_value
-        )
-        serial_override = (
-            self.get_parameter("serial_override").get_parameter_value().string_value
-        )
-        match connector_select:
-            case "serial":
-                logger.info("using serial connector")
-                self.connector = SerialConnector(
-                    logger, self.get_clock(), serial_override
-                )
-            case "can":
-                logger.info("using CAN connector")
-                self.connector = CANConnector(logger, self.get_clock(), can_override)
-            case "mock":
-                logger.info("using mock connector")
-                self.connector = MockConnector(logger, self.get_clock())
-            case "auto":
-                logger.info("automatically determining connector")
                 try:
-                    logger.info("trying CAN connector")
+                    # connect and send a ping command
-                    self.connector = CANConnector(
+                    ser = serial.Serial(port, 115200, timeout=1)
-                        logger, self.get_clock(), can_override
+                    # (f"Checking port {port}...")
-                    )
+                    ser.write(b"ping\n")
-                except (NoValidDeviceException, NoWorkingDeviceException, TypeError):
+                    response = ser.read_until(bytes("\n", "utf8"))
-                    logger.info("CAN connector failed, trying serial connector")
-                    self.connector = SerialConnector(
-                        logger, self.get_clock(), serial_override
-                    )
-            case _:
-                logger.fatal(
-                    f"invalid value for connector parameter: {connector_select}"
-                )
-                exit(1)
 
-        # ROS2 Topic Setup
+                    # if pong is in response, then we are talking with the MCU
+                    if b"pong" in response:
+                        self.port = port
+                        self.get_logger().info(f"Found MCU at {self.port}!")
+                        break
+                except:
+                    pass
 
-        # Publishers
+        if self.port is None:
-        self.fromvic_debug_pub_ = self.create_publisher(  # only used by serial
+            self.get_logger().info("Unable to find MCU...")
-            String,
+            time.sleep(1)
-            "/anchor/from_vic/debug",
+            sys.exit(1)
-            20,
-        )
-        self.fromvic_core_pub_ = self.create_publisher(
-            VicCAN,
-            "/anchor/from_vic/core",
-            20,
-        )
-        self.fromvic_arm_pub_ = self.create_publisher(
-            VicCAN,
-            "/anchor/from_vic/arm",
-            20,
-        )
-        self.fromvic_bio_pub_ = self.create_publisher(
-            VicCAN,
-            "/anchor/from_vic/bio",
-            20,
-        )
-        # Debug publisher
-        self.tovic_debug_pub_ = self.create_publisher(
-            VicCAN,
-            "/anchor/to_vic/debug",
-            20,
-        )
 
-        # Subscribers
+        self.ser = serial.Serial(self.port, 115200)
-        self.tovic_sub_ = self.create_subscription(
+        self.get_logger().info(f"Enabling Relay Mode")
-            VicCAN,
+        self.ser.write(b"can_relay_mode,on\n")
-            "/anchor/to_vic/relay",
-            self.write_connector,
-            20,
-        )
-        self.tovic_sub_legacy_ = self.create_subscription(
-            String,
-            "/anchor/relay",
-            self.write_connector_legacy,
-            20,
-        )
-        self.mock_mcu_sub_ = self.create_subscription(
-            String,
-            "/anchor/from_vic/mock_mcu",
-            self.relay_fromvic,
-            20,
-        )
-        self.tovic_string_sub_ = self.create_subscription(
-            String,
-            "/anchor/to_vic/relay_string",
-            self.connector.write_raw,
-            20,
-        )
-
-        # Close devices on exit
         atexit.register(self.cleanup)
 
+        # New pub/sub with VicCAN
+        self.fromvic_debug_pub_ = self.create_publisher(
+            String, "/anchor/from_vic/debug", 20
+        )
+        self.fromvic_core_pub_ = self.create_publisher(
+            VicCAN, "/anchor/from_vic/core", 20
+        )
+        self.fromvic_arm_pub_ = self.create_publisher(
+            VicCAN, "/anchor/from_vic/arm", 20
+        )
+        self.fromvic_bio_pub_ = self.create_publisher(
+            VicCAN, "/anchor/from_vic/bio", 20
+        )
+
+        self.mock_mcu_sub_ = self.create_subscription(
+            String, "/anchor/from_vic/mock_mcu", self.on_mock_fromvic, 20
+        )
+        self.tovic_sub_ = self.create_subscription(
+            VicCAN, "/anchor/to_vic/relay", self.on_relay_tovic_viccan, 20
+        )
+        self.tovic_debug_sub_ = self.create_subscription(
+            String, "/anchor/to_vic/relay_string", self.on_relay_tovic_string, 20
+        )
+
+        # Create publishers
+        self.arm_pub = self.create_publisher(String, "/anchor/arm/feedback", 10)
+        self.core_pub = self.create_publisher(String, "/anchor/core/feedback", 10)
+        self.bio_pub = self.create_publisher(String, "/anchor/bio/feedback", 10)
+
+        self.debug_pub = self.create_publisher(String, "/anchor/debug", 10)
+
+        # Create a subscriber
+        self.relay_sub = self.create_subscription(
+            String, "/anchor/relay", self.on_relay_tovic_string, 10
+        )
+
+    def run(self):
+        # This thread makes all the update processes run in the background
+        global thread
+        thread = threading.Thread(target=rclpy.spin, args={self}, daemon=True)
+        thread.start()
+
+        try:
+            while rclpy.ok():
+                self.read_MCU()  # Check the MCU for updates
+        except KeyboardInterrupt:
+            sys.exit(0)
+
+    def read_MCU(self):
+        """Check the USB serial port for new data from the MCU, and publish string to appropriate topics"""
+        try:
+            output = str(self.ser.readline(), "utf8")
+
+            if output:
+                self.relay_fromvic(output)
+                # All output over debug temporarily
+                # self.get_logger().info(f"[MCU] {output}")
+                msg = String()
+                msg.data = output
+                self.debug_pub.publish(msg)
+                if output.startswith("can_relay_fromvic,core"):
+                    self.core_pub.publish(msg)
+                elif output.startswith("can_relay_fromvic,arm") or output.startswith(
+                    "can_relay_fromvic,digit"
+                ):  # digit for voltage readings
+                    self.arm_pub.publish(msg)
+                if output.startswith("can_relay_fromvic,citadel") or output.startswith(
+                    "can_relay_fromvic,digit"
+                ):  # digit for SHT sensor
+                    self.bio_pub.publish(msg)
+                # msg = String()
+                # msg.data = output
+                # self.debug_pub.publish(msg)
+                return
+        except serial.SerialException as e:
+            print(f"SerialException: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            exit(1)
+        except TypeError as e:
+            print(f"TypeError: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            exit(1)
+        except Exception as e:
+            print(f"Exception: {e}")
+            # print("Closing serial port.")
+            # if self.ser.is_open:
+            #     self.ser.close()
+            # exit(1)
+
+    def on_mock_fromvic(self, msg: String):
+        """For testing without an actual MCU, publish strings here as if they came from an MCU"""
+        # self.get_logger().info(f"Got command from mock MCU: {msg}")
+        self.relay_fromvic(msg.data)
+
+    def on_relay_tovic_viccan(self, msg: VicCAN):
+        """Relay a VicCAN message to the MCU"""
+        output: str = f"can_relay_tovic,{msg.mcu_name},{msg.command_id}"
+        for num in msg.data:
+            output += f",{round(num, 7)}"  # limit to 7 decimal places
+        output += "\n"
+        # self.get_logger().info(f"VicCAN relay to MCU: {output}")
+        self.ser.write(bytes(output, "utf8"))
+
+    def relay_fromvic(self, msg: str):
+        """Relay a string message from the MCU to the appropriate VicCAN topic"""
+        self.fromvic_debug_pub_.publish(String(data=msg))
+        parts = msg.strip().split(",")
+        if len(parts) > 0 and parts[0] != "can_relay_fromvic":
+            self.get_logger().debug(f"Ignoring non-VicCAN message: '{msg.strip()}'")
+            return
+
+        # String validation
+        malformed: bool = False
+        malformed_reason: str = ""
+        if len(parts) < 3 or len(parts) > 7:
+            malformed = True
+            malformed_reason = (
+                f"invalid argument count (expected [3,7], got {len(parts)})"
+            )
+        elif parts[1] not in ["core", "arm", "digit", "citadel", "broadcast"]:
+            malformed = True
+            malformed_reason = f"invalid mcu_name '{parts[1]}'"
+        elif not (parts[2].isnumeric()) or int(parts[2]) < 0:
+            malformed = True
+            malformed_reason = f"command_id '{parts[2]}' is not a non-negative integer"
+        else:
+            for x in parts[3:]:
+                try:
+                    float(x)
+                except ValueError:
+                    malformed = True
+                    malformed_reason = f"data '{x}' is not a float"
+                    break
+
+        if malformed:
+            self.get_logger().warning(
+                f"Ignoring malformed from_vic message: '{msg.strip()}'; reason: {malformed_reason}"
+            )
+            return
+
+        # Have valid VicCAN message
+
+        output = VicCAN()
+        output.mcu_name = parts[1]
+        output.command_id = int(parts[2])
+        if len(parts) > 3:
+            output.data = [float(x) for x in parts[3:]]
+        output.header = Header(
+            stamp=self.get_clock().now().to_msg(), frame_id="from_vic"
+        )
+
+        # self.get_logger().info(f"Relaying from MCU: {output}")
+        if output.mcu_name == "core":
+            self.fromvic_core_pub_.publish(output)
+        elif output.mcu_name == "arm" or output.mcu_name == "digit":
+            self.fromvic_arm_pub_.publish(output)
+        elif output.mcu_name == "citadel" or output.mcu_name == "digit":
+            self.fromvic_bio_pub_.publish(output)
+
+    def on_relay_tovic_string(self, msg: String):
+        """Relay a raw string message to the MCU for debugging"""
+        message = msg.data
+        # self.get_logger().info(f"Sending command to MCU: {msg}")
+        self.ser.write(bytes(message, "utf8"))
+
+    @staticmethod
+    def list_serial_ports():
+        return glob.glob("/dev/ttyUSB*") + glob.glob("/dev/ttyACM*")
+
     def cleanup(self):
-        self.connector.cleanup()
+        print("Cleaning up before terminating...")
+        if self.ser.is_open:
+            self.ser.close()
 
-    def read_connector(self):
-        """Check the connector for new data from the MCU, and publish string to appropriate topics"""
-        viccan, raw = self.connector.read()
 
-        if raw:
+def myexcepthook(type, value, tb):
-            self.fromvic_debug_pub_.publish(String(data=raw))
+    print("Uncaught exception:", type, value)
-
+    if serial_pub:
-        if viccan:
+        serial_pub.cleanup()
-            self.relay_fromvic(viccan)
-
-    def write_connector(self, msg: VicCAN):
-        """Write to the connector and send a copy to /anchor/to_vic/debug"""
-        self.connector.write(msg)
-        self.tovic_debug_pub_.publish(msg)
-
-    @deprecated(
-        "Use /anchor/to_vic/relay or /anchor/to_vic/relay_string instead of /anchor/relay"
-    )
-    def write_connector_legacy(self, msg: String):
-        """Write to the connector by first attempting to convert String to VicCAN"""
-        # please do not reference this code. ~riley
-        for cmd in msg.data.split("\n"):
-            viccan = string_to_viccan(
-                cmd,
-                "anchor",
-                self.get_logger(),
-                self.get_clock().now().to_msg(),
-            )
-            if viccan:
-                self.write_connector(viccan)
-
-    def relay_fromvic(self, msg: VicCAN):
-        """Relay a message from the MCU to the appropriate VicCAN topic"""
-        if msg.mcu_name == "core":
-            self.fromvic_core_pub_.publish(msg)
-        elif msg.mcu_name == "arm" or msg.mcu_name == "digit":
-            self.fromvic_arm_pub_.publish(msg)
-        elif msg.mcu_name == "citadel" or msg.mcu_name == "digit":
-            self.fromvic_bio_pub_.publish(msg)
 
 
 def main(args=None):
-    try:
     rclpy.init(args=args)
-        anchor_node = Anchor()
+    sys.excepthook = myexcepthook
 
-        thread = threading.Thread(target=rclpy.spin, args=(anchor_node,), daemon=True)
+    global serial_pub
-        thread.start()
 
-        rate = anchor_node.create_rate(100)  # 100 Hz -- arbitrary rate
+    serial_pub = SerialRelay()
-        while rclpy.ok():
+    serial_pub.run()
-            anchor_node.read_connector()  # Check the connector for updates
+
-            rate.sleep()
+
-    except (KeyboardInterrupt, ExternalShutdownException):
+if __name__ == "__main__":
-        print("Caught shutdown signal, shutting down...")
+    # signal.signal(signal.SIGTSTP, lambda signum, frame: sys.exit(0))  # Catch Ctrl+Z and exit cleanly
-    finally:
+    signal.signal(
-        rclpy.try_shutdown()
+        signal.SIGTERM, lambda signum, frame: sys.exit(0)
+    )  # Catch termination signals and exit cleanly
+    main()

src/anchor_pkg/anchor_pkg/connector.py

@@ -1,438 +0,0 @@
-from abc import ABC, abstractmethod
-from astra_msgs.msg import VicCAN
-from rclpy.clock import Clock
-from rclpy.impl.rcutils_logger import RcutilsLogger
-from .convert import string_to_viccan as _string_to_viccan, viccan_to_string
-
-# CAN
-import can
-import can.interfaces.socketcan
-import struct
-
-# Serial
-import serial
-import serial.tools.list_ports
-
-KNOWN_USBS = [
-    (0x2E8A, 0x00C0),  # Raspberry Pi Pico
-    (0x1A86, 0x55D4),  # Adafruit Feather ESP32 V2
-    (0x10C4, 0xEA60),  # DOIT ESP32 Devkit V1
-    (0x1A86, 0x55D3),  # ESP32 S3 Development Board
-]
-BAUD_RATE = 115200
-
-MCU_IDS = [
-    "broadcast",
-    "core",
-    "arm",
-    "digit",
-    "faerie",
-    "citadel",
-    "libs",
-]
-
-
-class NoValidDeviceException(Exception):
-    pass
-
-
-class NoWorkingDeviceException(Exception):
-    pass
-
-
-class MultipleValidDevicesException(Exception):
-    pass
-
-
-class DeviceClosedException(Exception):
-    pass
-
-
-class Connector(ABC):
-    logger: RcutilsLogger
-    clock: Clock
-
-    def string_to_viccan(self, msg: str, mcu_name: str):
-        """function currying so that we do not need to pass logger and clock every time"""
-        return _string_to_viccan(
-            msg,
-            mcu_name,
-            self.logger,
-            self.clock.now().to_msg(),
-        )
-
-    def __init__(self, logger: RcutilsLogger, clock: Clock):
-        self.logger = logger
-        self.clock = clock
-
-    @abstractmethod
-    def read(self) -> tuple[VicCAN | None, str | None]:
-        """
-        Must return a tuple of (VicCAN, debug message or string repr of VicCAN)
-        """
-        pass
-
-    @abstractmethod
-    def write(self, msg: VicCAN):
-        pass
-
-    @abstractmethod
-    def write_raw(self, msg: str):
-        pass
-
-    def cleanup(self):
-        pass
-
-
-class SerialConnector(Connector):
-    port: str
-    mcu_name: str
-    serial_interface: serial.Serial
-
-    def __init__(self, logger: RcutilsLogger, clock: Clock, serial_override: str = ""):
-        super().__init__(logger, clock)
-
-        ports = self._find_ports()
-        mcu_name: str | None = None
-
-        if serial_override:
-            logger.warn(
-                f"using serial_override: `{serial_override}`! this will bypass several checks."
-            )
-            ports = [serial_override]
-            mcu_name = "override"
-
-        if len(ports) <= 0:
-            raise NoValidDeviceException("no valid serial device found")
-        if (l := len(ports)) > 1:
-            raise MultipleValidDevicesException(
-                f"too many ({l}) valid serial devices found"
-            )
-
-        # check each of our ports to make sure one of them is responding
-        port = ports[0]
-        # we might already have a name by now if we overrode earlier
-        mcu_name = mcu_name or self._get_name(port)
-        if not mcu_name:
-            raise NoWorkingDeviceException(
-                f"found {port}, but it did not respond with its name"
-            )
-
-        self.port = port
-        self.mcu_name = mcu_name
-
-        # if we fail at this point, it should crash because we've already tested the port
-        self.serial_interface = serial.Serial(self.port, BAUD_RATE, timeout=1)
-
-    def _find_ports(self) -> list[str]:
-        """
-        Finds all valid ports but does not test them
-
-        returns: all valid ports
-        """
-        comports = serial.tools.list_ports.comports()
-        valid_ports = list(
-            map(  # get just device strings
-                lambda p: p.device,
-                filter(  # make sure we have a known device
-                    lambda p: (p.vid, p.pid) in KNOWN_USBS and p.device is not None,
-                    comports,
-                ),
-            )
-        )
-        self.logger.info(f"found valid MCU ports: [ {', '.join(valid_ports)} ]")
-        return valid_ports
-
-    def _get_name(self, port: str) -> str | None:
-        """
-        Get the name of the MCU (if it works)
-
-        returns: str name of the MCU, None if it doesn't work
-        """
-        # attempt to open the serial port
-        serial_interface: serial.Serial
-        try:
-            self.logger.info(f"asking {port} for its name")
-            serial_interface = serial.Serial(port, BAUD_RATE, timeout=1)
-
-            serial_interface.write(b"can_relay_mode,on\n")
-
-            for i in range(4):
-                self.logger.debug(f"attempt {i + 1} of 4 asking {port} for its name")
-                response = serial_interface.read_until(bytes("\n", "utf8"))
-                try:
-                    if b"can_relay_ready" in response:
-                        args: list[str] = response.decode("utf8").strip().split(",")
-                        if len(args) == 2:
-                            self.logger.info(f"we are talking to {args[1]}")
-                            return args[1]
-                        break
-                except UnicodeDecodeError as e:
-                    self.logger.info(
-                        f"ignoring UnicodeDecodeError when asking for MCU name: {e}"
-                    )
-
-            if serial_interface.is_open:
-                # turn relay mode off if it failed to respond with its name
-                serial_interface.write(b"can_relay_mode,off\n")
-                serial_interface.close()
-        except serial.SerialException as e:
-            self.logger.error(f"SerialException when asking for MCU name: {e}")
-
-        return None
-
-    def read(self) -> tuple[VicCAN | None, str | None]:
-        try:
-            raw = str(self.serial_interface.readline(), "utf8")
-
-            if not raw:
-                return (None, None)
-
-            return (
-                self.string_to_viccan(raw, self.mcu_name),
-                raw,
-            )
-        except serial.SerialException as e:
-            self.logger.error(f"SerialException: {e}")
-            raise DeviceClosedException(f"serial port {self.port} closed unexpectedly")
-        except Exception:
-            return (None, None)  # pretty much no other error matters
-
-    def write(self, msg: VicCAN):
-        self.write_raw(viccan_to_string(msg))
-
-    def write_raw(self, msg: str):
-        self.serial_interface.write(bytes(msg, "utf8"))
-
-    def cleanup(self):
-        self.logger.info(f"closing serial port if open {self.port}")
-        try:
-            if self.serial_interface.is_open:
-                self.serial_interface.close()
-        except Exception as e:
-            self.logger.error(e)
-
-
-class CANConnector(Connector):
-    def __init__(self, logger: RcutilsLogger, clock: Clock, can_override: str):
-        super().__init__(logger, clock)
-
-        self.can_channel: str | None = None
-        self.can_bus: can.BusABC | None = None
-
-        avail = can.interfaces.socketcan.SocketcanBus._detect_available_configs()
-
-        if len(avail) == 0:
-            raise NoValidDeviceException("no CAN interfaces found")
-
-        # filter to busses whose channel matches the can_override
-        if can_override:
-            self.logger.info(f"overrode can interface with {can_override}")
-            avail = list(
-                filter(
-                    lambda b: b.get("channel") == can_override,
-                    avail,
-                )
-            )
-
-        if (l := len(avail)) > 1:
-            channels = ", ".join(str(b.get("channel")) for b in avail)
-            raise MultipleValidDevicesException(
-                f"too many ({l}) CAN interfaces found: [{channels}]"
-            )
-
-        bus = avail[0]
-        self.can_channel = str(bus.get("channel"))
-        self.logger.info(f"found CAN interface '{self.can_channel}'")
-
-        try:
-            self.can_bus = can.Bus(
-                interface="socketcan",
-                channel=self.can_channel,
-                bitrate=1_000_000,
-            )
-        except can.CanError as e:
-            raise NoWorkingDeviceException(
-                f"could not open CAN channel '{self.can_channel}': {e}"
-            )
-
-        if self.can_channel and self.can_channel.startswith("v"):
-            self.logger.warn("CAN interface is likely virtual")
-
-    def read(self) -> tuple[VicCAN | None, str | None]:
-        if not self.can_bus:
-            raise DeviceClosedException("CAN bus not initialized")
-
-        try:
-            message = self.can_bus.recv(timeout=0.0)
-        except can.CanError as e:
-            self.logger.error(f"CAN error while receiving: {e}")
-            raise DeviceClosedException("CAN bus closed unexpectedly")
-
-        if message is None:
-            return (None, None)
-
-        arbitration_id = message.arbitration_id & 0x7FF
-        data_bytes = bytes(message.data)
-
-        mcu_key = (arbitration_id >> 8) & 0b111
-        data_type_key = (arbitration_id >> 6) & 0b11
-        command = arbitration_id & 0x3F
-
-        try:
-            mcu_name = MCU_IDS[mcu_key]
-        except IndexError:
-            self.logger.warn(
-                f"received CAN frame with unknown MCU key {mcu_key}; id=0x{arbitration_id:X}"
-            )
-            return (None, None)
-
-        data: list[float] = []
-
-        try:
-            if data_type_key == 3:
-                data = []
-            elif data_type_key == 0:
-                if len(data_bytes) < 8:
-                    self.logger.warn(
-                        f"received double payload with insufficient length {len(data_bytes)}; dropping frame"
-                    )
-                    return (None, None)
-                (value,) = struct.unpack(">d", data_bytes[:8])
-                data = [float(value)]
-            elif data_type_key == 1:
-                if len(data_bytes) < 8:
-                    self.logger.warn(
-                        f"received float32x2 payload with insufficient length {len(data_bytes)}; dropping frame"
-                    )
-                    return (None, None)
-                v1, v2 = struct.unpack(">ff", data_bytes[:8])
-                data = [float(v1), float(v2)]
-            elif data_type_key == 2:
-                if len(data_bytes) < 8:
-                    self.logger.warn(
-                        f"received int16x4 payload with insufficient length {len(data_bytes)}; dropping frame"
-                    )
-                    return (None, None)
-                i1, i2, i3, i4 = struct.unpack(">hhhh", data_bytes[:8])
-                data = [float(i1), float(i2), float(i3), float(i4)]
-            else:
-                self.logger.warn(
-                    f"received CAN frame with unknown data_type_key {data_type_key}; id=0x{arbitration_id:X}"
-                )
-                return (None, None)
-        except struct.error as e:
-            self.logger.error(f"error unpacking CAN payload: {e}")
-            return (None, None)
-
-        viccan = VicCAN(
-            mcu_name=mcu_name,
-            command_id=int(command),
-            data=data,
-        )
-
-        self.logger.debug(
-            f"received CAN frame id=0x{message.arbitration_id:X}, "
-            f"decoded as VicCAN(mcu_name={viccan.mcu_name}, command_id={viccan.command_id}, data={viccan.data})"
-        )
-
-        return (
-            viccan,
-            f"{viccan.mcu_name},{viccan.command_id},"
-            + ",".join(map(str, list(viccan.data))),
-        )
-
-    def write(self, msg: VicCAN):
-        if not self.can_bus:
-            raise DeviceClosedException("CAN bus not initialized")
-
-        # build 11-bit arbitration ID according to VicCAN spec:
-        # bits 10..8: targeted MCU key
-        # bits 7..6:  data type key
-        # bits 5..0:  command
-
-        # map MCU name to 3-bit key.
-        try:
-            mcu_id = MCU_IDS.index((msg.mcu_name or "").lower())
-        except ValueError:
-            self.logger.error(
-                f"unknown VicCAN mcu_name '{msg.mcu_name}' for CAN frame; dropping message"
-            )
-            return
-
-        # determine data type from length:
-        # 0: double x1, 1: float32 x2, 2: int16 x4, 3: empty
-        match data_len := len(msg.data):
-            case 0:
-                data_type = 3
-                data = bytes()
-            case 1:
-                data_type = 0
-                data = struct.pack(">d", *msg.data)
-            case 2:
-                data_type = 1
-                data = struct.pack(">ff", *msg.data)
-            case 3 | 4:  # 3 gets treated as 4
-                data_type = 2
-                if data_len == 3:
-                    msg.data.append(0)
-                data = struct.pack(">hhhh", *[int(x) for x in msg.data])
-            case _:
-                self.logger.error(
-                    f"unexpected VicCAN data length: {data_len}; dropping message"
-                )
-                return
-
-        # command is limited to 6 bits.
-        command = int(msg.command_id)
-        if command < 0 or command > 0x3F:
-            self.logger.error(
-                f"invalid command_id for CAN frame: {command}; dropping message"
-            )
-            return
-
-        try:
-            can_message = can.Message(
-                arbitration_id=(mcu_id << 8) | (data_type << 6) | command,
-                data=data,
-                is_extended_id=False,
-            )
-        except Exception as e:
-            self.logger.error(f"failed to construct CAN message: {e}")
-            return
-
-        try:
-            self.can_bus.send(can_message)
-            self.logger.debug(
-                f"sent CAN frame id=0x{can_message.arbitration_id:X}, "
-                f"data={list(can_message.data)}"
-            )
-        except can.CanError as e:
-            self.logger.error(f"CAN error while sending: {e}")
-            raise DeviceClosedException("CAN bus closed unexpectedly")
-
-    def write_raw(self, msg: str):
-        self.logger.warn(f"write_raw is not supported for CANConnector. msg: {msg}")
-
-    def cleanup(self):
-        try:
-            if self.can_bus is not None:
-                self.logger.info("shutting down CAN bus")
-                self.can_bus.shutdown()
-        except Exception as e:
-            self.logger.error(e)
-
-
-class MockConnector(Connector):
-    def __init__(self, logger: RcutilsLogger, clock: Clock):
-        super().__init__(logger, clock)
-        # No hardware interface for MockConnector. Publish to `/anchor/from_vic/mock_mcu` instead.
-
-    def read(self) -> tuple[VicCAN | None, str | None]:
-        return (None, None)
-
-    def write(self, msg: VicCAN):
-        pass
-
-    def write_raw(self, msg: str):
-        pass

src/anchor_pkg/anchor_pkg/convert.py

@@ -1,65 +0,0 @@
-from astra_msgs.msg import VicCAN
-from std_msgs.msg import Header
-from builtin_interfaces.msg import Time
-from rclpy.impl.rcutils_logger import RcutilsLogger
-
-
-def string_to_viccan(
-    msg: str, mcu_name: str, logger: RcutilsLogger, time: Time
-) -> VicCAN | None:
-    """
-    Converts the serial string VicCAN format to a ROS2 VicCAN message.
-    Does not fill out the Header of the message.
-    On a failure, it will log at a debug level why it failed and return None.
-    """
-
-    parts: list[str] = msg.strip().split(",")
-
-    # don't need an extra check because len of .split output is always >= 1
-    if not parts[0].startswith("can_relay_"):
-        logger.debug(f"got non-CAN data from {mcu_name}: {msg}")
-        return None
-    elif len(parts) < 3:
-        logger.debug(f"got garbage (not enough parts) CAN data from {mcu_name}: {msg}")
-        return None
-    elif len(parts) > 7:
-        logger.debug(f"got garbage (too many parts) CAN data from {mcu_name}: {msg}")
-        return None
-
-    try:
-        command_id = int(parts[2])
-    except ValueError:
-        logger.debug(
-            f"got garbage (non-integer command id) CAN data from {mcu_name}: {msg}"
-        )
-        return None
-
-    if command_id not in range(64):
-        logger.debug(
-            f"got garbage (wrong command id {command_id}) CAN data from {mcu_name}: {msg}"
-        )
-        return None
-
-    try:
-        return VicCAN(
-            header=Header(
-                stamp=time,
-                frame_id="from_vic",
-            ),
-            mcu_name=parts[1],
-            command_id=command_id,
-            data=[float(x) for x in parts[3:]],
-        )
-    except ValueError:
-        logger.debug(f"got garbage (non-numerical) CAN data from {mcu_name}: {msg}")
-        return None
-
-
-def viccan_to_string(viccan: VicCAN) -> str:
-    """Converts a ROS2 VicCAN message to the serial string VicCAN format."""
-    # make sure we accept 3 digits and treat it as 4
-    if len(viccan.data) == 3:
-        viccan.data.append(0)
-    # go from [ w, x, y, z ] -> ",w,x,y,z" & round to 7 digits max
-    data = "".join([f",{round(val,7)}" for val in viccan.data])
-    return f"can_relay_tovic,{viccan.mcu_name},{viccan.command_id}{data}\n"

src/anchor_pkg/launch/rover.launch.py

@@ -1,174 +1,136 @@
+#!/usr/bin/env python3
+
 from launch import LaunchDescription
-from launch.actions import DeclareLaunchArgument, Shutdown, IncludeLaunchDescription
+from launch.actions import DeclareLaunchArgument, OpaqueFunction, Shutdown
-from launch.conditions import IfCondition
+from launch.substitutions import (
-from launch.substitutions import LaunchConfiguration, PathJoinSubstitution
+    LaunchConfiguration,
+    ThisLaunchFileDir,
+    PathJoinSubstitution,
+)
 from launch_ros.actions import Node
-from launch_ros.substitutions import FindPackageShare
-from launch.launch_description_sources import PythonLaunchDescriptionSource
 
 
-def generate_launch_description():
+# Prevent making __pycache__ directories
-    connector = LaunchConfiguration("connector")
+from sys import dont_write_bytecode
-    serial_override = LaunchConfiguration("serial_override")
-    can_override = LaunchConfiguration("can_override")
-    use_ptz = LaunchConfiguration("use_ptz")
 
-    ld = LaunchDescription()
+dont_write_bytecode = True
 
-    # arguments
-    ld.add_action(
-        DeclareLaunchArgument(
-            "connector",
-            default_value="auto",
-            description="Connector parameter for anchor node (default: 'auto')",
-        )
-    )
 
-    ld.add_action(
+def launch_setup(context, *args, **kwargs):
-        DeclareLaunchArgument(
+    # Retrieve the resolved value of the launch argument 'mode'
-            "serial_override",
+    mode = LaunchConfiguration("mode").perform(context)
-            default_value="",
+    nodes = []
-            description="Serial port override parameter for anchor node (default: '')",
-        )
-    )
 
-    ld.add_action(
+    if mode == "anchor":
-        DeclareLaunchArgument(
+        # Launch every node and pass "anchor" as the parameter
-            "can_override",
-            default_value="",
-            description="CAN network override parameter for anchor node (default: '')",
-        )
-    )
 
-    ld.add_action(
+        nodes.append(
-        DeclareLaunchArgument(
-            "use_ptz",
-            default_value="true",  # must be string for launch system
-            description="Whether to launch PTZ node (default: true)",
-        )
-    )
-
-    ld.add_action(
-        DeclareLaunchArgument(
-            "use_ros2_control",
-            default_value="false",
-            description="Whether to use DiffDriveController for driving instead of direct Twist",
-        )
-    )
-
-    ld.add_action(
-        DeclareLaunchArgument(
-            "rover_platform",
-            default_value="auto",
-            description="Choose the rover platform (either clucky or testbed). If left on auto, will defer to ROVER_PLATFORM environment variable.",
-            choices=["clucky", "testbed", "auto"],
-        )
-    )
-
-    # nodes
-    ld.add_action(
             Node(
-            package="anchor_pkg",
+                package="arm_pkg",
-            executable="anchor",
+                executable="arm",  # change as needed
-            name="anchor",
+                name="arm",
                 output="both",
-            parameters=[
+                parameters=[{"launch_mode": mode}],
-                {
-                    "launch_mode": "anchor",
-                    "connector": connector,
-                    "serial_override": serial_override,
-                    "can_override": can_override,
-                }
-            ],
                 on_exit=Shutdown(),
             )
         )
-
+        nodes.append(
-    ld.add_action(
+            Node(
+                package="core_pkg",
+                executable="core",  # change as needed
+                name="core",
+                output="both",
+                parameters=[{"launch_mode": mode}],
+                on_exit=Shutdown(),
+            )
+        )
+        nodes.append(
+            Node(
+                package="core_pkg",
+                executable="ptz",  # change as needed
+                name="ptz",
+                output="both",
+                # Currently don't shutdown all nodes if the PTZ node fails, as it is not critical
+                # on_exit=Shutdown()  # Uncomment if you want to shutdown on PTZ failure
+            )
+        )
+        nodes.append(
+            Node(
+                package="bio_pkg",
+                executable="bio",  # change as needed
+                name="bio",
+                output="both",
+                parameters=[{"launch_mode": mode}],
+                on_exit=Shutdown(),
+            )
+        )
+        nodes.append(
+            Node(
+                package="anchor_pkg",
+                executable="anchor",  # change as needed
+                name="anchor",
+                output="both",
+                parameters=[{"launch_mode": mode}],
+                on_exit=Shutdown(),
+            )
+        )
+    elif mode in ["arm", "core", "bio", "ptz"]:
+        # Only launch the node corresponding to the provided mode.
+        if mode == "arm":
+            nodes.append(
                 Node(
                     package="arm_pkg",
                     executable="arm",
                     name="arm",
                     output="both",
-            parameters=[{"launch_mode": "anchor"}],
+                    parameters=[{"launch_mode": mode}],
                     on_exit=Shutdown(),
                 )
             )
-
+        elif mode == "core":
-    ld.add_action(
+            nodes.append(
-        Node(
-            package="bio_pkg",
-            executable="bio",
-            name="bio",
-            output="both",
-            parameters=[{"launch_mode": "anchor"}],
-            on_exit=Shutdown(),
-        )
-    )
-
-    ld.add_action(
                 Node(
                     package="core_pkg",
                     executable="core",
                     name="core",
                     output="both",
-            parameters=[
+                    parameters=[{"launch_mode": mode}],
-                {"launch_mode": "anchor"},
-                {
-                    "use_ros2_control": LaunchConfiguration(
-                        "use_ros2_control", default=False
-                    )
-                },
-                {
-                    "rover_platform": LaunchConfiguration(
-                        "rover_platform", default="auto"
-                    )
-                },
-            ],
                     on_exit=Shutdown(),
                 )
             )
-
+        elif mode == "bio":
-    ld.add_action(
+            nodes.append(
+                Node(
+                    package="bio_pkg",
+                    executable="bio",
+                    name="bio",
+                    output="both",
+                    parameters=[{"launch_mode": mode}],
+                    on_exit=Shutdown(),
+                )
+            )
+        elif mode == "ptz":
+            nodes.append(
                 Node(
                     package="core_pkg",
                     executable="ptz",
                     name="ptz",
                     output="both",
-            condition=IfCondition(use_ptz),
+                    on_exit=Shutdown(),  # on fail, shutdown if this was the only node to be launched
                 )
             )
+    else:
+        # If an invalid mode is provided, print an error.
+        print("Invalid mode provided. Choose one of: arm, core, bio, anchor, ptz.")
+
+    return nodes
+
+
+def generate_launch_description():
+    declare_arg = DeclareLaunchArgument(
+        "mode",
+        default_value="anchor",
+        description="Launch mode: arm, core, bio, anchor, or ptz",
+    )
 
-    ld.add_action(
+    return LaunchDescription([declare_arg, OpaqueFunction(function=launch_setup)])
-        IncludeLaunchDescription(
-            PythonLaunchDescriptionSource(
-                PathJoinSubstitution(
-                    [
-                        FindPackageShare("core_description"),
-                        "launch",
-                        "robot_state_publisher.launch.py",
-                    ]
-                )
-            ),
-            condition=IfCondition(LaunchConfiguration("use_ros2_control")),
-            launch_arguments={("hardware_mode", "physical")},
-        )
-    )
-
-    ld.add_action(
-        IncludeLaunchDescription(
-            PythonLaunchDescriptionSource(
-                PathJoinSubstitution(
-                    [
-                        FindPackageShare("core_description"),
-                        "launch",
-                        "spawn_controllers.launch.py",
-                    ]
-                )
-            ),
-            condition=IfCondition(LaunchConfiguration("use_ros2_control")),
-            launch_arguments={("hardware_mode", "physical")},
-        )
-    )
-
-    return ld

src/anchor_pkg/package.xml

@@ -3,20 +3,13 @@
 <package format="3">
   <name>anchor_pkg</name>
   <version>0.0.0</version>
-  <description>ASTRA VicCAN driver package, using python-can and pyserial.</description>
+  <description>TODO: Package description</description>
-  <maintainer email="rjm0037@uah.edu">Riley</maintainer>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
+  <depend>common_interfaces</depend>
-  <exec_depend>common_interfaces</exec_depend>
+  <depend>python3-serial</depend>
-  <exec_depend>python3-serial</exec_depend>
-  <exec_depend>python3-can</exec_depend>
-
-  <exec_depend>core_pkg</exec_depend>
-  <exec_depend>arm_pkg</exec_depend>
-  <exec_depend>bio_pkg</exec_depend>
-  <exec_depend>core_description</exec_depend>
 
   <build_depend>black</build_depend>
 

src/anchor_pkg/setup.cfg

@@ -2,5 +2,3 @@
 script_dir=$base/lib/anchor_pkg
 [install]
 install_scripts=$base/lib/anchor_pkg
-[build_scripts]
-executable= /usr/bin/env python3

src/anchor_pkg/setup.py

@@ -6,7 +6,7 @@ package_name = "anchor_pkg"
 
 setup(
     name=package_name,
-    version="1.0.0",
+    version="0.0.0",
     packages=find_packages(exclude=["test"]),
     data_files=[
         ("share/ament_index/resource_index/packages", ["resource/" + package_name]),
@@ -17,8 +17,8 @@ setup(
     zip_safe=True,
     maintainer="tristan",
     maintainer_email="tristanmcginnis26@gmail.com",
-    description="ASTRA VicCAN driver package, using python-can and pyserial.",
+    description="Anchor node used to run all modules through a single modules MCU/Computer. Commands to all modules will be relayed through CAN",
-    license="AGPL-3.0-only",
+    license="All Rights Reserved",
     entry_points={
         "console_scripts": ["anchor = anchor_pkg.anchor_node:main"],
     },

src/arm_pkg/arm_pkg/arm_headless.py

@@ -0,0 +1,279 @@
+import rclpy
+from rclpy.node import Node
+
+import pygame
+
+import time
+
+import serial
+import sys
+import threading
+import glob
+import os
+
+from std_msgs.msg import String
+from astra_msgs.msg import ControllerState
+from astra_msgs.msg import ArmManual
+from astra_msgs.msg import ArmIK
+
+
+os.environ["SDL_AUDIODRIVER"] = (
+    "dummy"  # Force pygame to use a dummy audio driver before pygame.init()
+)
+os.environ["SDL_VIDEODRIVER"] = "dummy"  # Prevents pygame from trying to open a display
+
+
+class Headless(Node):
+    def __init__(self):
+        # Initalize node with name
+        super().__init__("arm_headless")
+
+        # Depricated, kept temporarily for reference
+        # self.create_timer(0.20, self.send_controls)#read and send controls
+
+        self.create_timer(0.1, self.send_manual)
+
+        # Create a publisher to publish any output the pico sends
+
+        # Depricated, kept temporarily for reference
+        # self.publisher = self.create_publisher(ControllerState, '/astra/arm/control', 10)
+        self.manual_pub = self.create_publisher(ArmManual, "/arm/control/manual", 10)
+
+        # Create a subscriber to listen to any commands sent for the pico
+
+        # Depricated, kept temporarily for reference
+        # self.subscriber = self.create_subscription(String, '/astra/arm/feedback', self.read_feedback, 10)
+
+        # self.debug_sub = self.create_subscription(String, '/arm/feedback/debug', self.read_feedback, 10)
+
+        self.laser_status = 0
+
+        # Initialize pygame
+        pygame.init()
+
+        # Initialize the gamepad module
+        pygame.joystick.init()
+
+        # Check if any gamepad is connected
+        if pygame.joystick.get_count() == 0:
+            print("No gamepad found.")
+            pygame.quit()
+            exit()
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+                exit()
+
+        # Initialize the first gamepad, print name to terminal
+        self.gamepad = pygame.joystick.Joystick(0)
+        self.gamepad.init()
+        print(f"Gamepad Found: {self.gamepad.get_name()}")
+        #
+        #
+
+    def run(self):
+        # This thread makes all the update processes run in the background
+        thread = threading.Thread(target=rclpy.spin, args={self}, daemon=True)
+        thread.start()
+
+        try:
+            while rclpy.ok():
+                # Check the pico for updates
+
+                # self.read_feedback()
+                if (
+                    pygame.joystick.get_count() == 0
+                ):  # if controller disconnected, wait for it to be reconnected
+                    print(f"Gamepad disconnected: {self.gamepad.get_name()}")
+
+                    while pygame.joystick.get_count() == 0:
+                        # self.send_controls() #depricated, kept for reference temporarily
+                        self.send_manual()
+                        # self.read_feedback()
+                    self.gamepad = pygame.joystick.Joystick(0)
+                    self.gamepad.init()  # re-initialized gamepad
+                    print(f"Gamepad reconnected: {self.gamepad.get_name()}")
+
+        except KeyboardInterrupt:
+            sys.exit(0)
+
+    def send_manual(self):
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+                exit()
+        input = ArmManual()
+
+        # Triggers for gripper control
+        if self.gamepad.get_axis(2) > 0:  # left trigger
+            input.gripper = -1
+        elif self.gamepad.get_axis(5) > 0:  # right trigger
+            input.gripper = 1
+
+        # Toggle Laser
+        if self.gamepad.get_button(7):  # Start
+            self.laser_status = 1
+        elif self.gamepad.get_button(6):  # Back
+            self.laser_status = 0
+        input.laser = self.laser_status
+
+        if self.gamepad.get_button(5):  # right bumper, control effector
+
+            # Left stick X-axis for effector yaw
+            if self.gamepad.get_axis(0) > 0:
+                input.effector_yaw = 1
+            elif self.gamepad.get_axis(0) < 0:
+                input.effector_yaw = -1
+
+            # Right stick X-axis for effector roll
+            if self.gamepad.get_axis(3) > 0:
+                input.effector_roll = 1
+            elif self.gamepad.get_axis(3) < 0:
+                input.effector_roll = -1
+
+        else:  # Control arm axis
+            dpad_input = self.gamepad.get_hat(0)
+            input.axis0 = 0
+            if dpad_input[0] == 1:
+                input.axis0 = 1
+            elif dpad_input[0] == -1:
+                input.axis0 = -1
+
+            if self.gamepad.get_axis(0) > 0.15 or self.gamepad.get_axis(0) < -0.15:
+                input.axis1 = round(self.gamepad.get_axis(0))
+
+            if self.gamepad.get_axis(1) > 0.15 or self.gamepad.get_axis(1) < -0.15:
+                input.axis2 = -1 * round(self.gamepad.get_axis(1))
+
+            if self.gamepad.get_axis(4) > 0.15 or self.gamepad.get_axis(4) < -0.15:
+                input.axis3 = -1 * round(self.gamepad.get_axis(4))
+
+            # input.axis1 = -1 * round(self.gamepad.get_axis(0))#left x-axis
+            # input.axis2 = -1 * round(self.gamepad.get_axis(1))#left y-axis
+            # input.axis3 = -1 * round(self.gamepad.get_axis(4))#right y-axis
+
+        # Button Mappings
+        # axis2 -> LT
+        # axis5 -> RT
+        # Buttons0 -> A
+        # Buttons1 -> B
+        # Buttons2 -> X
+        # Buttons3 -> Y
+        # Buttons4 -> LB
+        # Buttons5 -> RB
+        # Buttons6 -> Back
+        # Buttons7 -> Start
+
+        input.linear_actuator = 0
+
+        if pygame.joystick.get_count() != 0:
+
+            self.get_logger().info(
+                f"[Ctrl] {input.axis0}, {input.axis1}, {input.axis2}, {input.axis3}\n"
+            )
+            self.manual_pub.publish(input)
+        else:
+            pass
+
+        pass
+
+    # Depricated, kept temporarily for reference
+    # def send_controls(self):
+
+    #     for event in pygame.event.get():
+    #         if event.type == pygame.QUIT:
+    #             pygame.quit()
+    #             exit()
+    #     input = ControllerState()
+
+    #     input.lt = self.gamepad.get_axis(2)#left trigger
+    #     input.rt = self.gamepad.get_axis(5)#right trigger
+
+    #     #input.lb = self.gamepad.get_button(9)#Value must be converted to bool
+    #     if(self.gamepad.get_button(4)):#left bumper
+    #         input.lb = True
+    #     else:
+    #         input.lb = False
+
+    #     #input.rb = self.gamepad.get_button(10)#Value must be converted to bool
+    #     if(self.gamepad.get_button(5)):#right bumper
+    #         input.rb = True
+    #     else:
+    #         input.rb = False
+
+    #     #input.plus = self.gamepad.get_button(6)#plus button
+    #     if(self.gamepad.get_button(7)):#plus button
+    #         input.plus = True
+    #     else:
+    #         input.plus = False
+
+    #     #input.minus = self.gamepad.get_button(4)#minus button
+    #     if(self.gamepad.get_button(6)):#minus button
+    #         input.minus = True
+    #     else:
+    #         input.minus = False
+
+    #     input.ls_x = round(self.gamepad.get_axis(0),2)#left x-axis
+    #     input.ls_y = round(self.gamepad.get_axis(1),2)#left y-axis
+    #     input.rs_x = round(self.gamepad.get_axis(3),2)#right x-axis
+    #     input.rs_y = round(self.gamepad.get_axis(4),2)#right y-axis
+
+    #     #input.a = self.gamepad.get_button(1)#A button
+    #     if(self.gamepad.get_button(0)):#A button
+    #         input.a = True
+    #     else:
+    #         input.a = False
+    #     #input.b = self.gamepad.get_button(0)#B button
+    #     if(self.gamepad.get_button(1)):#B button
+    #         input.b = True
+    #     else:
+    #         input.b = False
+    #     #input.x = self.gamepad.get_button(3)#X button
+    #     if(self.gamepad.get_button(2)):#X button
+    #         input.x = True
+    #     else:
+    #         input.x = False
+    #     #input.y = self.gamepad.get_button(2)#Y button
+    #     if(self.gamepad.get_button(3)):#Y button
+    #         input.y = True
+    #     else:
+    #         input.y = False
+
+    #     dpad_input = self.gamepad.get_hat(0)#D-pad input
+
+    #     #not using up/down on DPad
+    #     input.d_up = False
+    #     input.d_down = False
+
+    #     if(dpad_input[0] == 1):#D-pad right
+    #         input.d_right = True
+    #     else:
+    #         input.d_right = False
+    #     if(dpad_input[0] == -1):#D-pad left
+    #         input.d_left = True
+    #     else:
+    #         input.d_left = False
+
+    #     if pygame.joystick.get_count() != 0:
+
+    #         self.get_logger().info(f"[Ctrl] Updated Controller State\n")
+
+    #         self.publisher.publish(input)
+    #     else:
+    #         pass
+
+
+def main(args=None):
+    rclpy.init(args=args)
+
+    node = Headless()
+
+    rclpy.spin(node)
+    rclpy.shutdown()
+
+    # tb_bs = BaseStation()
+    # node.run()
+
+
+if __name__ == "__main__":
+    main()

src/arm_pkg/arm_pkg/arm_node.py

@@ -1,96 +1,50 @@
-import sys
-import signal
-import math
-from warnings import deprecated
-
 import rclpy
 from rclpy.node import Node
-from rclpy.executors import ExternalShutdownException
+import serial
-from rclpy import qos
+import sys
-
+import threading
-from std_msgs.msg import String, Header
+import glob
+import time
+import atexit
+import signal
+from std_msgs.msg import String
+from astra_msgs.msg import ArmManual
+from astra_msgs.msg import SocketFeedback
+from astra_msgs.msg import DigitFeedback
 from sensor_msgs.msg import JointState
-from control_msgs.msg import JointJog
+import math
-from astra_msgs.msg import SocketFeedback, DigitFeedback, ArmManual  # TODO: Old topics
-from astra_msgs.msg import ArmFeedback, ArmCtrlState, VicCAN, RevMotorState
 
-control_qos = qos.QoSProfile(
+# control_qos = qos.QoSProfile(
-    history=qos.QoSHistoryPolicy.KEEP_LAST,
+#     history=qos.QoSHistoryPolicy.KEEP_LAST,
-    depth=2,
+#     depth=1,
-    reliability=qos.QoSReliabilityPolicy.BEST_EFFORT,  # Best Effort subscribers are still compatible with Reliable publishers
+#     reliability=qos.QoSReliabilityPolicy.BEST_EFFORT,
-    durability=qos.QoSDurabilityPolicy.VOLATILE,
+#     durability=qos.QoSDurabilityPolicy.VOLATILE,
-    # deadline=Duration(seconds=1),
+#     deadline=1000,
-    # lifespan=Duration(nanoseconds=500_000_000),  # 500ms
+#     lifespan=500,
-    # liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
+#     liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
-    # liveliness_lease_duration=Duration(seconds=5),
+#     liveliness_lease_duration=5000
-)
+# )
+
+serial_pub = None
+thread = None
 
 
-class ArmNode(Node):
+class SerialRelay(Node):
-    """Relay between Anchor and Basestation/Headless/Moveit2 for Arm related topics."""
-
-    # Every non-fixed joint defined in Arm's URDF
-    # Used for JointState and JointJog messsages
-    all_joint_names = [
-        "axis_0_joint",
-        "axis_1_joint",
-        "axis_2_joint",
-        "axis_3_joint",
-        "wrist_yaw_joint",
-        "wrist_roll_joint",
-        "ef_gripper_left_joint",
-    ]
-
-    # Used to verify the length of an incoming VicCAN feedback message
-    # Key is VicCAN command_id, value is expected length of data list
-    viccan_socket_msg_len_dict = {
-        53: 4,
-        54: 4,
-        55: 4,
-        58: 4,
-        59: 4,
-    }
-
-    viccan_digit_msg_len_dict = {
-        54: 4,
-        55: 2,
-        59: 2,
-    }
-
     def __init__(self):
+        # Initialize node
         super().__init__("arm_node")
 
-        self.get_logger().info(f"arm launch_mode is: anchor")  # Hey I like the output
+        # Get launch mode parameter
-
+        self.declare_parameter("launch_mode", "arm")
-        ##################################################
+        self.launch_mode = self.get_parameter("launch_mode").value
-        # Parameters
+        self.get_logger().info(f"arm launch_mode is: {self.launch_mode}")
-
-        self.declare_parameter("use_old_topics", True)
-        self.use_old_topics = (
-            self.get_parameter("use_old_topics").get_parameter_value().bool_value
-        )
-
-        ##################################################
-        # Old topics
-
-        if self.use_old_topics:
-            # Anchor topics
-            self.anchor_sub = self.create_subscription(
-                String, "/anchor/arm/feedback", self.anchor_feedback, 10
-            )
-            self.anchor_pub = self.create_publisher(
-                String, "/anchor/to_vic/relay_string", 10
-            )
 
         # Create publishers
+        self.debug_pub = self.create_publisher(String, "/arm/feedback/debug", 10)
         self.socket_pub = self.create_publisher(
             SocketFeedback, "/arm/feedback/socket", 10
         )
-            self.arm_feedback = SocketFeedback()
+        self.digit_pub = self.create_publisher(DigitFeedback, "/arm/feedback/digit", 10)
-            self.digit_pub = self.create_publisher(
-                DigitFeedback, "/arm/feedback/digit", 10
-            )
-            self.digit_feedback = DigitFeedback()
         self.feedback_timer = self.create_timer(0.25, self.publish_feedback)
 
         # Create subscribers
@@ -98,179 +52,130 @@ class ArmNode(Node):
             ArmManual, "/arm/control/manual", self.send_manual, 10
         )
 
-        ###################################################
+        # New messages
-        # New topics
+        self.joint_state_pub = self.create_publisher(JointState, "joint_states", 10)
-
+        self.joint_state = JointState()
-        # Anchor topics
+        self.joint_state.name = [
-
+            "Axis_0_Joint",
-        # from_vic
+            "Axis_1_Joint",
-        self.anchor_fromvic_sub_ = self.create_subscription(
+            "Axis_2_Joint",
-            VicCAN, "/anchor/from_vic/arm", self.relay_fromvic, 20
+            "Axis_3_Joint",
-        )
+            "Wrist_Differential_Joint",
-        # to_vic
+            "Wrist-EF_Roll_Joint",
-        self.anchor_tovic_pub_ = self.create_publisher(
+            "Gripper_Slider_Left",
-            VicCAN, "/anchor/to_vic/relay", 20
-        )
-
-        # Control
-
-        # Manual: /arm/control/joint_jog is published by Basestation or Headless
-        self.man_jointjog_sub_ = self.create_subscription(
-            JointJog,
-            "/arm/control/joint_jog",
-            self.jointjog_callback,
-            qos_profile=control_qos,
-        )
-        # IK: /joint_commands is published by JointTrajectoryController via topic_based_control
-        self.joint_command_sub_ = self.create_subscription(
-            JointState,
-            "/joint_commands",
-            self.joint_command_callback,
-            qos_profile=control_qos,
-        )
-        # State: /arm/control/state is published by Basestation or Headless
-        self.man_state_sub_ = self.create_subscription(
-            ArmCtrlState,
-            "/arm/control/state",
-            self.man_state_callback,
-            qos_profile=control_qos,
-        )
-
-        # Feedback
-
-        # Combined Socket and Digit feedback
-        self.arm_feedback_pub_ = self.create_publisher(
-            ArmFeedback,
-            "/arm/feedback",
-            qos_profile=qos.qos_profile_sensor_data,
-        )
-        # IK arm pose: /joint_states is published from here to topic_based_control
-        self.joint_state_pub_ = self.create_publisher(
-            JointState, "/joint_states", qos_profile=qos.qos_profile_sensor_data
-        )
-
-        ###################################################
-        # Saved state
-
-        # Combined Socket and Digit feedback
-        self.arm_feedback_new = ArmFeedback()
-        self.arm_feedback_new.axis0_motor.id = 1
-        self.arm_feedback_new.axis1_motor.id = 2
-        self.arm_feedback_new.axis2_motor.id = 3
-        self.arm_feedback_new.axis3_motor.id = 4
-
-        # IK Arm pose
-        self.saved_joint_state = JointState()
-        self.saved_joint_state.header.frame_id = "base_link"
-        self.saved_joint_state.name = self.all_joint_names
-        # ... initialize with zeros
-        self.saved_joint_state.position = [0.0] * len(self.saved_joint_state.name)
-        self.saved_joint_state.velocity = [0.0] * len(self.saved_joint_state.name)
-
-    def jointjog_callback(self, msg: JointJog):
-        if len(msg.joint_names) != len(msg.velocities):
-            self.get_logger().debug("Ignoring malformed /arm/manual/joint_jog message.")
-            return
-
-        # Grab velocities from message
-        velocities = [
-            (
-                msg.velocities[msg.joint_names.index(joint_name)]  # type: ignore
-                if joint_name in msg.joint_names
-                else 0.0
-            )
-            for joint_name in self.all_joint_names
         ]
-        # Deadzone
+        self.joint_state.position = [0.0] * len(
-        velocities = [vel if abs(vel) > 0.05 else 0.0 for vel in velocities]
+            self.joint_state.name
+        )  # Initialize with zeros
 
-        self.anchor_tovic_pub_.publish(
+        self.joint_command_sub = self.create_subscription(
-            VicCAN(
+            JointState, "/joint_commands", self.joint_command_callback, 10
-                mcu_name="arm",
-                command_id=39,
-                data=velocities[0:4],
-                header=msg.header,
-            )
         )
 
-        self.anchor_tovic_pub_.publish(
+        # Topics used in anchor mode
-            VicCAN(
+        if self.launch_mode == "anchor":
-                mcu_name="digit",
+            self.anchor_sub = self.create_subscription(
-                command_id=39,
+                String, "/anchor/arm/feedback", self.anchor_feedback, 10
-                data=velocities[4:6],
-                header=msg.header,
-            )
             )
+            self.anchor_pub = self.create_publisher(String, "/anchor/relay", 10)
 
-        self.anchor_tovic_pub_.publish(
+        self.arm_feedback = SocketFeedback()
-            VicCAN(
+        self.digit_feedback = DigitFeedback()
-                mcu_name="digit",
-                command_id=26,
-                data=[velocities[6]],
-                header=msg.header,
-            )
-        )
 
-        # TODO: use msg.duration
+        # Search for ports IF in 'arm' (standalone) and not 'anchor' mode
+        if self.launch_mode == "arm":
+            # Loop through all serial devices on the computer to check for the MCU
+            self.port = None
+            ports = SerialRelay.list_serial_ports()
+            for _ in range(4):
+                for port in ports:
+                    try:
+                        # connect and send a ping command
+                        ser = serial.Serial(port, 115200, timeout=1)
+                        # print(f"Checking port {port}...")
+                        ser.write(b"ping\n")
+                        response = ser.read_until("\n")  # type: ignore
 
-    def man_state_callback(self, msg: ArmCtrlState):
+                        # if pong is in response, then we are talking with the MCU
-        self.anchor_tovic_pub_.publish(
+                        if b"pong" in response:
-            VicCAN(
+                            self.port = port
-                mcu_name="arm",
+                            self.get_logger().info(f"Found MCU at {self.port}!")
-                command_id=18,
+                            break
-                data=[1.0 if msg.brake_mode else 0.0],
+                    except:
-                header=Header(stamp=self.get_clock().now().to_msg()),
+                        pass
-            )
+                if self.port is not None:
-        )
+                    break
 
-        self.anchor_tovic_pub_.publish(
+            if self.port is None:
-            VicCAN(
+                self.get_logger().info(
-                mcu_name="arm",
+                    "Unable to find MCU... please make sure it is connected."
-                command_id=34,
-                data=[1.0 if msg.laser else 0.0],
-                header=Header(stamp=self.get_clock().now().to_msg()),
-            )
                 )
+                time.sleep(1)
+                sys.exit(1)
+
+            self.ser = serial.Serial(self.port, 115200)
+            atexit.register(self.cleanup)
+
+    def run(self):
+        global thread
+        thread = threading.Thread(target=rclpy.spin, args=(self,), daemon=True)
+        thread.start()
+
+        # if in arm mode, will need to read from the MCU
+
+        try:
+            while rclpy.ok():
+                if self.launch_mode == "arm":
+                    if self.ser.in_waiting:
+                        self.read_mcu()
+                    else:
+                        time.sleep(0.1)
+        except KeyboardInterrupt:
+            pass
+        finally:
+            self.cleanup()
+
+    # Currently will just spit out all values over the /arm/feedback/debug topic as strings
+    def read_mcu(self):
+        try:
+            output = str(self.ser.readline(), "utf8")
+            if output:
+                # self.get_logger().info(f"[MCU] {output}")
+                msg = String()
+                msg.data = output
+                self.debug_pub.publish(msg)
+        except serial.SerialException:
+            self.get_logger().info("SerialException caught... closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            pass
+        except TypeError as e:
+            self.get_logger().info(f"TypeError: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            pass
+        except Exception as e:
+            print(f"Exception: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            pass
 
     def joint_command_callback(self, msg: JointState):
-        if len(msg.position) < 7 and len(msg.velocity) < 7:
+        # Embedded takes deg*10, ROS2 uses Radians
-            self.get_logger().debug("Ignoring malformed /joint_command message.")
+        positions = [math.degrees(pos) * 10 for pos in msg.position]
-            return  # command needs either position or velocity for all 7 joints
+        # Axis 2 & 3 URDF direction is inverted
+        positions[2] = -positions[2]
+        positions[3] = -positions[3]
 
-        # Grab velocities from message
+        # Set target angles for each arm axis for embedded IK PID to handle
-        velocities = [
+        command = f"can_relay_tovic,arm,32,{positions[0]},{positions[1]},{positions[2]},{positions[3]}\n"
-            (
+        # Wrist yaw and roll
-                msg.velocity[msg.name.index(joint_name)]  # type: ignore
+        command += f"can_relay_tovic,digit,32,{positions[4]},{positions[5]}\n"
-                if joint_name in msg.name
+        # Gripper IK does not have adequate hardware yet
-                else 0.0
+        self.send_cmd(command)
-            )
-            for joint_name in self.all_joint_names
-        ]
 
-        self.send_velocities(velocities, msg.header)
-
-    def send_velocities(self, velocities: list[float], header: Header):
-        # ROS2's rad/s to VicCAN's deg/s*10; don't convert gripper's m/s
-        velocities = [
-            math.degrees(vel) * 10 if i < 6 else vel for i, vel in enumerate(velocities)
-        ]
-
-        # Send Axis 0-3
-        self.anchor_tovic_pub_.publish(
-            VicCAN(mcu_name="arm", command_id=43, data=velocities[0:4], header=header)
-        )
-        # Send Wrist yaw and roll
-        # TODO: Verify embedded
-        self.anchor_tovic_pub_.publish(
-            VicCAN(mcu_name="digit", command_id=43, data=velocities[4:6], header=header)
-        )
-        # Send End Effector Gripper
-        # TODO: Verify m/s received correctly by embedded
-        self.anchor_tovic_pub_.publish(
-            VicCAN(mcu_name="digit", command_id=26, data=[velocities[6]], header=header)
-        )
-
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def send_manual(self, msg: ArmManual):
         axis0 = msg.axis0
         axis1 = -1 * msg.axis1
@@ -285,7 +190,7 @@ class ArmNode(Node):
 
         command += f"can_relay_tovic,digit,39,{msg.effector_yaw},{msg.effector_roll}\n"
 
-        command += f"can_relay_tovic,digit,26,{msg.gripper}\n"  # no hardware rn
+        # command += f"can_relay_tovic,digit,26,{msg.gripper}\n"  # no hardware rn
 
         command += f"can_relay_tovic,digit,28,{msg.laser}\n"
 
@@ -295,17 +200,24 @@ class ArmNode(Node):
 
         return
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def send_cmd(self, msg: str):
-        output = String(data=msg)
+        if (
+            self.launch_mode == "anchor"
+        ):  # if in anchor mode, send to anchor node to relay
+            output = String()
+            output.data = msg
             self.anchor_pub.publish(output)
+        elif self.launch_mode == "arm":  # if in standalone mode, send to MCU directly
+            self.get_logger().info(f"[Arm to MCU] {msg}")
+            self.ser.write(bytes(msg, "utf8"))
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def anchor_feedback(self, msg: String):
         output = msg.data
         if output.startswith("can_relay_fromvic,arm,55"):
+            # pass
             self.updateAngleFeedback(output)
         elif output.startswith("can_relay_fromvic,arm,54"):
+            # pass
             self.updateBusVoltage(output)
         elif output.startswith("can_relay_fromvic,arm,53"):
             self.updateMotorFeedback(output)
@@ -323,138 +235,19 @@ class ArmNode(Node):
             if len(parts) >= 4:
                 self.digit_feedback.wrist_angle = float(parts[3])
                 # self.digit_feedback.wrist_roll = float(parts[4])
+                self.joint_state.position[4] = math.radians(
+                    float(parts[4])
+                )  # Wrist roll
+                self.joint_state.position[5] = math.radians(
+                    float(parts[3])
+                )  # Wrist yaw
         else:
             return
 
-    def relay_fromvic(self, msg: VicCAN):
-        # Code for socket and digit are broken out for cleaner code
-        if msg.mcu_name == "arm":
-            self.process_fromvic_arm(msg)
-        elif msg.mcu_name == "digit":
-            self.process_fromvic_digit(msg)
-
-    def process_fromvic_arm(self, msg: VicCAN):
-        assert msg.mcu_name == "arm"
-
-        # Check message len to prevent crashing on bad data
-        if msg.command_id in self.viccan_socket_msg_len_dict:
-            expected_len = self.viccan_socket_msg_len_dict[msg.command_id]
-            if len(msg.data) != expected_len:
-                self.get_logger().warning(
-                    f"Ignoring VicCAN message with id {msg.command_id} due to unexpected data length (expected {expected_len}, got {len(msg.data)})"
-                )
-                return
-
-        self.arm_feedback_new.header.stamp = msg.header.stamp
-
-        match msg.command_id:
-            case 53:  # REV SPARK MAX feedback
-                motorId = round(msg.data[0])
-                motor: RevMotorState | None = None
-                match motorId:
-                    case 1:
-                        motor = self.arm_feedback_new.axis1_motor
-                    case 2:
-                        motor = self.arm_feedback_new.axis2_motor
-                    case 3:
-                        motor = self.arm_feedback_new.axis3_motor
-                    case 4:
-                        motor = self.arm_feedback_new.axis0_motor
-
-                if motor:
-                    motor.temperature = float(msg.data[1]) / 10.0
-                    motor.voltage = float(msg.data[2]) / 10.0
-                    motor.current = float(msg.data[3]) / 10.0
-                    motor.header.stamp = msg.header.stamp
-
-                self.arm_feedback_pub_.publish(self.arm_feedback_new)
-            case 54:  # Board voltages
-                self.arm_feedback_new.socket_voltage.vbatt = float(msg.data[0]) / 100.0
-                self.arm_feedback_new.socket_voltage.v12 = float(msg.data[1]) / 100.0
-                self.arm_feedback_new.socket_voltage.v5 = float(msg.data[2]) / 100.0
-                self.arm_feedback_new.socket_voltage.v3 = float(msg.data[3]) / 100.0
-                self.arm_feedback_new.socket_voltage.header.stamp = msg.header.stamp
-            case 55:  # Arm joint positions
-                angles = [angle / 10.0 for angle in msg.data]  # VicCAN sends deg*10
-                # Joint state publisher for URDF visualization
-                self.saved_joint_state.position[0] = math.radians(angles[0])  # Axis 0
-                self.saved_joint_state.position[1] = math.radians(angles[1])  # Axis 1
-                self.saved_joint_state.position[2] = math.radians(angles[2])  # Axis 2
-                self.saved_joint_state.position[3] = math.radians(angles[3])  # Axis 3
-                # Wrist is handled by digit feedback
-                self.saved_joint_state.header.stamp = msg.header.stamp
-                self.joint_state_pub_.publish(self.saved_joint_state)
-            case 58:  # REV SPARK MAX position and velocity feedback
-                motorId = round(msg.data[0])
-                motor: RevMotorState | None = None
-                match motorId:
-                    case 1:
-                        motor = self.arm_feedback_new.axis1_motor
-                    case 2:
-                        motor = self.arm_feedback_new.axis2_motor
-                    case 3:
-                        motor = self.arm_feedback_new.axis3_motor
-                    case 4:
-                        motor = self.arm_feedback_new.axis0_motor
-
-                if motor:
-                    motor.position = float(msg.data[1])
-                    motor.velocity = float(msg.data[2])
-                    motor.header.stamp = msg.header.stamp
-
-                self.arm_feedback_pub_.publish(self.arm_feedback_new)
-            case 59:  # Arm joint velocities
-                velocities = [vel / 100.0 for vel in msg.data]  # VicCAN sends deg/s*100
-                self.saved_joint_state.velocity[0] = math.radians(
-                    velocities[0]
-                )  # Axis 0
-                self.saved_joint_state.velocity[1] = math.radians(
-                    velocities[1]
-                )  # Axis 1
-                self.saved_joint_state.velocity[2] = math.radians(
-                    velocities[2]
-                )  # Axis 2
-                self.saved_joint_state.velocity[3] = math.radians(
-                    velocities[3]
-                )  # Axis 3
-                # Wrist is handled by digit feedback
-                self.saved_joint_state.header.stamp = msg.header.stamp
-                self.joint_state_pub_.publish(self.saved_joint_state)
-
-    def process_fromvic_digit(self, msg: VicCAN):
-        assert msg.mcu_name == "digit"
-
-        # Check message len to prevent crashing on bad data
-        if msg.command_id in self.viccan_digit_msg_len_dict:
-            expected_len = self.viccan_digit_msg_len_dict[msg.command_id]
-            if len(msg.data) != expected_len:
-                self.get_logger().warning(
-                    f"Ignoring VicCAN message with id {msg.command_id} due to unexpected data length (expected {expected_len}, got {len(msg.data)})"
-                )
-                return
-
-        self.arm_feedback_new.header.stamp = msg.header.stamp
-
-        match msg.command_id:
-            case 54:  # Board voltages
-                self.arm_feedback_new.digit_voltage.vbatt = float(msg.data[0]) / 100.0
-                self.arm_feedback_new.digit_voltage.v12 = float(msg.data[1]) / 100.0
-                self.arm_feedback_new.digit_voltage.v5 = float(msg.data[2]) / 100.0
-                self.arm_feedback_new.digit_voltage.header.stamp = msg.header.stamp
-            case 55:  # Arm joint positions
-                self.saved_joint_state.position[4] = math.radians(
-                    msg.data[0]
-                )  # Wrist roll
-                self.saved_joint_state.position[5] = math.radians(
-                    msg.data[1]
-                )  # Wrist yaw
-
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def publish_feedback(self):
         self.socket_pub.publish(self.arm_feedback)
         self.digit_pub.publish(self.digit_feedback)
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def updateAngleFeedback(self, msg: str):
         # Angle feedbacks,
         # split the msg.data by commas
@@ -470,10 +263,19 @@ class ArmNode(Node):
             self.arm_feedback.axis1_angle = angles[1]
             self.arm_feedback.axis2_angle = angles[2]
             self.arm_feedback.axis3_angle = angles[3]
+
+            # Joint state publisher for URDF visualization
+            self.joint_state.position[0] = math.radians(angles[0])  # Axis 0
+            self.joint_state.position[1] = math.radians(angles[1])  # Axis 1
+            self.joint_state.position[2] = math.radians(-angles[2])  # Axis 2 (inverted)
+            self.joint_state.position[3] = math.radians(-angles[3])  # Axis 3 (inverted)
+            # Wrist is handled by digit feedback
+            self.joint_state.header.stamp = self.get_clock().now().to_msg()
+            self.joint_state_pub.publish(self.joint_state)
+
         else:
             self.get_logger().info("Invalid angle feedback input format")
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def updateBusVoltage(self, msg: str):
         # Bus Voltage feedbacks
         parts = msg.split(",")
@@ -488,7 +290,6 @@ class ArmNode(Node):
         else:
             self.get_logger().info("Invalid voltage feedback input format")
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def updateMotorFeedback(self, msg: str):
         parts = str(msg.strip()).split(",")
         motorId = round(float(parts[3]))
@@ -512,28 +313,38 @@ class ArmNode(Node):
             self.arm_feedback.axis0_voltage = voltage
             self.arm_feedback.axis0_current = current
 
+    @staticmethod
+    def list_serial_ports():
+        return glob.glob("/dev/ttyUSB*") + glob.glob("/dev/ttyACM*")
+        # return glob.glob("/dev/tty[A-Za-z]*")
 
-def exit_handler(signum, frame):
+    def cleanup(self):
-    print("Caught SIGTERM. Exiting...")
+        print("Cleaning up...")
-    rclpy.try_shutdown()
+        try:
-    sys.exit(0)
+            if self.ser.is_open:
+                self.ser.close()
+        except Exception as e:
+            exit(0)
+
+
+def myexcepthook(type, value, tb):
+    print("Uncaught exception:", type, value)
+    if serial_pub:
+        serial_pub.cleanup()
 
 
 def main(args=None):
     rclpy.init(args=args)
+    sys.excepthook = myexcepthook
 
-    # Catch termination signals and exit cleanly
+    global serial_pub
-    signal.signal(signal.SIGTERM, exit_handler)
+    serial_pub = SerialRelay()
-
+    serial_pub.run()
-    arm_node = ArmNode()
-
-    try:
-        rclpy.spin(arm_node)
-    except (KeyboardInterrupt, ExternalShutdownException):
-        pass
-    finally:
-        rclpy.try_shutdown()
 
 
 if __name__ == "__main__":
+    # signal.signal(signal.SIGTSTP, lambda signum, frame: sys.exit(0))  # Catch Ctrl+Z and exit cleanly
+    signal.signal(
+        signal.SIGTERM, lambda signum, frame: sys.exit(0)
+    )  # Catch termination signals and exit cleanly
     main()

src/arm_pkg/package.xml

@@ -3,15 +3,14 @@
 <package format="3">
   <name>arm_pkg</name>
   <version>1.0.0</version>
-  <description>Relays topics related to Arm between VicCAN (through Anchor) and basestation.</description>
+  <description>Core arm package which handles ROS2 commnuication.</description>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
+  <depend>common_interfaces</depend>
-  <exec_depend>common_interfaces</exec_depend>
+  <depend>python3-numpy</depend>
-  <exec_depend>python3-numpy</exec_depend>
+  <depend>astra_msgs</depend>
-  <exec_depend>astra_msgs</exec_depend>
 
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>

src/arm_pkg/setup.py

@@ -1,22 +1,27 @@
-from setuptools import setup
+from setuptools import find_packages, setup
+import os
+from glob import glob
 
 package_name = "arm_pkg"
 
 setup(
     name=package_name,
     version="1.0.0",
-    packages=[package_name],
+    packages=find_packages(exclude=["test"]),
     data_files=[
         ("share/ament_index/resource_index/packages", ["resource/" + package_name]),
         ("share/" + package_name, ["package.xml"]),
     ],
     install_requires=["setuptools"],
     zip_safe=True,
-    maintainer="David Sharpe",
+    maintainer="tristan",
-    maintainer_email="ds0196@uah.edu",
+    maintainer_email="tristanmcginnis26@gmail.com",
-    description="Relays topics related to Arm between VicCAN (through Anchor) and basestation.",
+    description="TODO: Package description",
-    license="AGPL-3.0-only",
+    license="All Rights Reserved",
     entry_points={
-        "console_scripts": ["arm = arm_pkg.arm_node:main"],
+        "console_scripts": [
+            "arm = arm_pkg.arm_node:main",
+            "headless = arm_pkg.arm_headless:main",
+        ],
     },
 )

src/bio_pkg/package.xml

@@ -2,16 +2,14 @@
 <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
 <package format="3">
   <name>bio_pkg</name>
-  <version>1.0.0</version>
+  <version>0.0.0</version>
-  <description>Biosensor package to handle command interpretation and embedded interfacing.</description>
+  <description>TODO: Package description</description>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
+  <depend>common_interfaces</depend>
-  <exec_depend>common_interfaces</exec_depend>
+  <depend>astra_msgs</depend>
-
-  <exec_depend>astra_msgs</exec_depend>
 
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>

src/bio_pkg/setup.cfg

@@ -2,5 +2,3 @@
 script_dir=$base/lib/bio_pkg
 [install]
 install_scripts=$base/lib/bio_pkg
-[build_scripts]
-executable= /usr/bin/env python3

src/bio_pkg/setup.py

@@ -14,8 +14,8 @@ setup(
     zip_safe=True,
     maintainer="tristan",
     maintainer_email="tristanmcginnis26@gmail.com",
-    description="Relays topics related to Biosensor between VicCAN (through Anchor) and basestation.",
+    description="TODO: Package description",
-    license="AGPL-3.0-only",
+    license="TODO: License declaration",
     entry_points={
         "console_scripts": ["bio = bio_pkg.bio_node:main"],
     },

src/core_pkg/core_pkg/core_headless.py

@@ -0,0 +1,112 @@
+import rclpy
+from rclpy.node import Node
+
+import pygame
+
+import time
+
+import serial
+import sys
+import threading
+import glob
+import os
+
+import importlib
+from std_msgs.msg import String
+from astra_msgs.msg import CoreControl
+
+
+os.environ["SDL_VIDEODRIVER"] = "dummy"  # Prevents pygame from trying to open a display
+os.environ["SDL_AUDIODRIVER"] = (
+    "dummy"  # Force pygame to use a dummy audio driver before pygame.init()
+)
+
+
+max_speed = 90  # Max speed as a duty cycle percentage (1-100)
+
+
+class Headless(Node):
+    def __init__(self):
+        # Initialize pygame first
+        pygame.init()
+        pygame.joystick.init()
+
+        # Wait for a gamepad to be connected
+        self.gamepad = None
+        print("Waiting for gamepad connection...")
+        while pygame.joystick.get_count() == 0:
+            # Process any pygame events to keep it responsive
+            for event in pygame.event.get():
+                if event.type == pygame.QUIT:
+                    pygame.quit()
+                    sys.exit(0)
+            time.sleep(1.0)  # Check every second
+            print("No gamepad found. Waiting...")
+
+        # Initialize the gamepad
+        self.gamepad = pygame.joystick.Joystick(0)
+        self.gamepad.init()
+        print(f"Gamepad Found: {self.gamepad.get_name()}")
+
+        # Now initialize the ROS2 node
+        super().__init__("core_headless")
+        self.create_timer(0.15, self.send_controls)
+        self.publisher = self.create_publisher(CoreControl, "/core/control", 10)
+        self.lastMsg = (
+            String()
+        )  # Used to ignore sending controls repeatedly when they do not change
+
+    def run(self):
+        # This thread makes all the update processes run in the background
+        thread = threading.Thread(target=rclpy.spin, args={self}, daemon=True)
+        thread.start()
+
+        try:
+            while rclpy.ok():
+                self.send_controls()
+                time.sleep(0.1)  # Small delay to avoid CPU hogging
+        except KeyboardInterrupt:
+            sys.exit(0)
+
+    def send_controls(self):
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+                sys.exit(0)
+
+        # Check if controller is still connected
+        if pygame.joystick.get_count() == 0:
+            print("Gamepad disconnected. Exiting...")
+            # Send one last zero control message
+            input = CoreControl()
+            input.left_stick = 0
+            input.right_stick = 0
+            input.max_speed = 0
+            self.publisher.publish(input)
+            self.get_logger().info("Final stop command sent. Shutting down.")
+            # Clean up
+            pygame.quit()
+            sys.exit(0)
+
+        input = CoreControl()
+        input.max_speed = max_speed
+        input.right_stick = -1 * round(self.gamepad.get_axis(4), 2)  # right y-axis
+        if self.gamepad.get_axis(5) > 0:
+            input.left_stick = input.right_stick
+        else:
+            input.left_stick = -1 * round(self.gamepad.get_axis(1), 2)  # left y-axis
+
+        output = f"L: {input.left_stick}, R: {input.right_stick}, M: {max_speed}"
+        self.get_logger().info(f"[Ctrl] {output}")
+        self.publisher.publish(input)
+
+
+def main(args=None):
+    rclpy.init(args=args)
+    node = Headless()
+    rclpy.spin(node)
+    rclpy.shutdown()
+
+
+if __name__ == "__main__":
+    main()

src/core_pkg/core_pkg/core_node.py

@@ -1,16 +1,20 @@
-import sys
-import signal
-from typing import Literal, cast
-from scipy.spatial.transform import Rotation
-from math import copysign, pi
-from warnings import deprecated
-from os import getenv
-
 import rclpy
 from rclpy.node import Node
-from rclpy.executors import ExternalShutdownException
 from rclpy import qos
 from rclpy.duration import Duration
+from std_srvs.srv import Empty
+
+import signal
+import time
+import atexit
+
+import serial
+import os
+import sys
+import threading
+import glob
+from scipy.spatial.transform import Rotation
+from math import copysign, pi
 
 from std_msgs.msg import String, Header
 from sensor_msgs.msg import Imu, NavSatFix, NavSatStatus, JointState
@@ -19,33 +23,27 @@ from astra_msgs.msg import CoreControl, CoreFeedback, RevMotorState
 from astra_msgs.msg import VicCAN, NewCoreFeedback, Barometer, CoreCtrlState
 
 
+serial_pub = None
+thread = None
+
 CORE_WHEELBASE = 0.836  # meters
 CORE_WHEEL_RADIUS = 0.171  # meters
-CORE_GEAR_RATIO = 100.0  # Clucky: 100:1
+CORE_GEAR_RATIO = 100.0  # Clucky: 100:1, Testbed: 64:1
-
-# TODO: update core_description or add testbed_description
-TESTBED_WHEELBASE = 0.368  # meters
-TESTBED_WHEEL_RADIUS = 0.108  # meters
-TESTBED_GEAR_RATIO = 64  # Testbed: 64:1
 
 control_qos = qos.QoSProfile(
     history=qos.QoSHistoryPolicy.KEEP_LAST,
     depth=2,
-    reliability=qos.QoSReliabilityPolicy.BEST_EFFORT,  # Best Effort subscribers are still compatible with Reliable publishers
+    reliability=qos.QoSReliabilityPolicy.BEST_EFFORT,
     durability=qos.QoSDurabilityPolicy.VOLATILE,
-    # deadline=Duration(seconds=1),
+    deadline=Duration(seconds=1),
-    # lifespan=Duration(nanoseconds=500_000_000),  # 500ms
+    lifespan=Duration(nanoseconds=500_000_000),  # 500ms
-    # liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
+    liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
-    # liveliness_lease_duration=Duration(seconds=5),
+    liveliness_lease_duration=Duration(seconds=5),
 )
 
-
+# Used to verify the length of an incoming VicCAN feedback message
-class CoreNode(Node):
+# Key is VicCAN command_id, value is expected length of data list
-    """Relay between Anchor and Basestation/Headless/Moveit2 for Core related topics."""
+viccan_msg_len_dict = {
-
-    # Used to verify the length of an incoming VicCAN feedback message
-    # Key is VicCAN command_id, value is expected length of data list
-    viccan_msg_len_dict = {
     48: 1,
     49: 1,
     50: 2,
@@ -55,71 +53,24 @@ class CoreNode(Node):
     54: 4,
     56: 4,  # really 3, but viccan
     58: 4,  # ditto
-    }
+}
-    rover_platform: Literal["core", "testbed"]
 
+
+class SerialRelay(Node):
     def __init__(self):
+        # Initalize node with name
         super().__init__("core_node")
 
-        self.get_logger().info(f"core launch_mode is: anchor")
+        # Launch mode -- anchor vs core
+        self.declare_parameter("launch_mode", "core")
+        self.launch_mode = self.get_parameter("launch_mode").value
+        self.get_logger().info(f"Core launch_mode is: {self.launch_mode}")
 
         ##################################################
-        # Parameters
+        # Topics
-
-        self.declare_parameter("use_ros2_control", False)
-        self.use_ros2_control = (
-            self.get_parameter("use_ros2_control").get_parameter_value().bool_value
-        )
-
-        self.declare_parameter("rover_platform", "auto")
-        rover_platform = (
-            self.get_parameter("rover_platform").get_parameter_value().string_value
-        )
-        if rover_platform == "auto":
-            self.get_logger().info(
-                "rover_platform parameter is unset, falling back to environment variable"
-            )
-            rover_platform = getenv("ROVER_PLATFORM", "auto")
-        if rover_platform not in ("core", "testbed"):  # make sure we have a valid value
-            raise ValueError("rover platform must be either 'core' or 'testbed'.")
-        else:
-            self.rover_platform = cast(Literal["core", "testbed"], rover_platform)
-
-        if self.rover_platform == "testbed":
-            global TESTBED_WHEELBASE, TESTBED_WHEEL_RADIUS, TESTBED_GEAR_RATIO
-            self.wheelbase = TESTBED_WHEELBASE
-            self.wheel_radius = TESTBED_WHEEL_RADIUS
-            self.gear_ratio = TESTBED_GEAR_RATIO
-        else:  # default in case of unset or invalid environment variable
-            global CORE_WHEELBASE, CORE_WHEEL_RADIUS, CORE_GEAR_RATIO
-            self.wheelbase = CORE_WHEELBASE
-            self.wheel_radius = CORE_WHEEL_RADIUS
-            self.gear_ratio = CORE_GEAR_RATIO
-
-        ##################################################
-        # Old Topics
-
-        self.anchor_sub = self.create_subscription(
-            String, "/anchor/core/feedback", self.anchor_feedback, 10
-        )
-        self.anchor_pub = self.create_publisher(String, "/anchor/relay", 10)
-
-        if not self.use_ros2_control:
-            # /core/control
-            self.control_sub = self.create_subscription(
-                CoreControl, "/core/control", self.send_controls, 10
-            )  # old control method -- left_stick, right_stick, max_speed, brake, and some other random autonomy stuff
-        # /core/feedback
-        self.feedback_pub = self.create_publisher(CoreFeedback, "/core/feedback", 10)
-        self.core_feedback = CoreFeedback()
-
-        self.telemetry_pub_timer = self.create_timer(1.0, self.publish_feedback)
-
-        ##################################################
-        # New Topics
 
         # Anchor
-
+        if self.launch_mode == "anchor":
             self.anchor_fromvic_sub_ = self.create_subscription(
                 VicCAN, "/anchor/from_vic/core", self.relay_fromvic, 20
             )
@@ -127,16 +78,18 @@ class CoreNode(Node):
                 VicCAN, "/anchor/to_vic/relay", 20
             )
 
+            self.anchor_sub = self.create_subscription(
+                String, "/anchor/core/feedback", self.anchor_feedback, 10
+            )
+            self.anchor_pub = self.create_publisher(String, "/anchor/relay", 10)
+
         # Control
 
-        if self.use_ros2_control:
+        # autonomy twist -- m/s and rad/s -- for autonomy, in particular Nav2
-            # Joint state control for topic-based controller
+        self.cmd_vel_sub_ = self.create_subscription(
-            self.joint_command_sub_ = self.create_subscription(
+            TwistStamped, "/cmd_vel", self.cmd_vel_callback, 1
-                JointState, "/core/joint_commands", self.joint_command_callback, 2
         )
-        else:
         # manual twist -- [-1, 1] rather than real units
-            # TODO: change topic to '/core/control/twist'
         self.twist_man_sub_ = self.create_subscription(
             Twist, "/core/twist", self.twist_man_callback, qos_profile=control_qos
         )
@@ -147,64 +100,148 @@ class CoreNode(Node):
             self.control_state_callback,
             qos_profile=control_qos,
         )
-            self.twist_max_duty = 0.5  # max duty cycle for twist commands (0.0 - 1.0); walking speed is 0.5
+        self.twist_max_duty = (
+            0.5  # max duty cycle for twist commands (0.0 - 1.0); walking speed is 0.5
+        )
 
         # Feedback
 
-        # Consolidated and organized main core feedback
+        # Consolidated and organized core feedback
-        # TODO: change topic to something like '/core/feedback/main'
         self.feedback_new_pub_ = self.create_publisher(
             NewCoreFeedback,
             "/core/feedback_new",
             qos_profile=qos.qos_profile_sensor_data,
         )
-
-        # Joint states for topic-based controller
-        self.joint_state_pub_ = self.create_publisher(
-            JointState, "/joint_states", qos_profile=qos.qos_profile_sensor_data
-        )
-
-        # IMU (embedded BNO-055)
-        self.imu_pub_ = self.create_publisher(
-            Imu, "/core/imu", qos_profile=qos.qos_profile_sensor_data
-        )
-
-        # GPS (embedded u-blox M9N)
-        self.gps_pub_ = self.create_publisher(
-            NavSatFix, "/gps/fix", qos_profile=qos.qos_profile_sensor_data
-        )
-
-        # Barometer (embedded BMP-388)
-        self.baro_pub_ = self.create_publisher(
-            Barometer, "/core/feedback/baro", qos_profile=qos.qos_profile_sensor_data
-        )
-
-        ###################################################
-        # Saved state
-
-        # Main Core feedback
         self.feedback_new_state = NewCoreFeedback()
         self.feedback_new_state.fl_motor.id = 1
         self.feedback_new_state.bl_motor.id = 2
         self.feedback_new_state.fr_motor.id = 3
         self.feedback_new_state.br_motor.id = 4
-
+        self.telemetry_pub_timer = self.create_timer(
-        # IMU
+            1.0, self.publish_feedback
+        )  # TODO: not sure about this
+        # Joint states for topic-based controller
+        self.joint_state_pub_ = self.create_publisher(
+            JointState, "/core/joint_states", qos_profile=qos.qos_profile_sensor_data
+        )
+        # IMU (embedded BNO-055)
+        self.imu_pub_ = self.create_publisher(
+            Imu, "/core/imu", qos_profile=qos.qos_profile_sensor_data
+        )
         self.imu_state = Imu()
         self.imu_state.header.frame_id = "core_bno055"
-
+        # GPS (embedded u-blox M9N)
-        # GPS
+        self.gps_pub_ = self.create_publisher(
+            NavSatFix, "/gps/fix", qos_profile=qos.qos_profile_sensor_data
+        )
         self.gps_state = NavSatFix()
         self.gps_state.header.frame_id = "core_gps_antenna"
         self.gps_state.status.service = NavSatStatus.SERVICE_GPS
         self.gps_state.status.status = NavSatStatus.STATUS_NO_FIX
         self.gps_state.position_covariance_type = NavSatFix.COVARIANCE_TYPE_UNKNOWN
-
+        # Barometer (embedded BMP-388)
-        # Barometer
+        self.baro_pub_ = self.create_publisher(
+            Barometer, "/core/baro", qos_profile=qos.qos_profile_sensor_data
+        )
         self.baro_state = Barometer()
         self.baro_state.header.frame_id = "core_bmp388"
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
+        # Old
+
+        # /core/control
+        self.control_sub = self.create_subscription(
+            CoreControl, "/core/control", self.send_controls, 10
+        )  # old control method -- left_stick, right_stick, max_speed, brake, and some other random autonomy stuff
+        # /core/feedback
+        self.feedback_pub = self.create_publisher(CoreFeedback, "/core/feedback", 10)
+        self.core_feedback = CoreFeedback()
+        # Debug
+        self.debug_pub = self.create_publisher(String, "/core/debug", 10)
+        self.ping_service = self.create_service(
+            Empty, "/astra/core/ping", self.ping_callback
+        )
+
+        ##################################################
+        # Find microcontroller (Non-anchor only)
+
+        # Core (non-anchor) specific
+        if self.launch_mode == "core":
+            # Loop through all serial devices on the computer to check for the MCU
+            self.port = None
+            ports = SerialRelay.list_serial_ports()
+            for i in range(2):
+                for port in ports:
+                    try:
+                        # connect and send a ping command
+                        ser = serial.Serial(port, 115200, timeout=1)
+                        # (f"Checking port {port}...")
+                        ser.write(b"ping\n")
+                        response = ser.read_until("\n")  # type: ignore
+
+                        # if pong is in response, then we are talking with the MCU
+                        if b"pong" in response:
+                            self.port = port
+                            self.get_logger().info(f"Found MCU at {self.port}!")
+                            self.get_logger().info(f"Enabling Relay Mode")
+                            ser.write(b"can_relay_mode,on\n")
+                            break
+                    except:
+                        pass
+                if self.port is not None:
+                    break
+
+            if self.port is None:
+                self.get_logger().info("Unable to find MCU...")
+                time.sleep(1)
+                sys.exit(1)
+
+            self.ser = serial.Serial(self.port, 115200)
+            atexit.register(self.cleanup)
+        # end __init__()
+
+    def run(self):
+        # This thread makes all the update processes run in the background
+        global thread
+        thread = threading.Thread(target=rclpy.spin, args={self}, daemon=True)
+        thread.start()
+
+        try:
+            while rclpy.ok():
+                if self.launch_mode == "core":
+                    self.read_MCU()  # Check the MCU for updates
+        except KeyboardInterrupt:
+            sys.exit(0)
+
+    def read_MCU(self):  # NON-ANCHOR SPECIFIC
+        try:
+            output = str(self.ser.readline(), "utf8")
+
+            if output:
+                # All output over debug temporarily
+                print(f"[MCU] {output}")
+                msg = String()
+                msg.data = output
+                self.debug_pub.publish(msg)
+                return
+        except serial.SerialException as e:
+            print(f"SerialException: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            sys.exit(1)
+        except TypeError as e:
+            print(f"TypeError: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            sys.exit(1)
+        except Exception as e:
+            print(f"Exception: {e}")
+            print("Closing serial port.")
+            if self.ser.is_open:
+                self.ser.close()
+            sys.exit(1)
+
     def scale_duty(self, value: float, max_speed: float):
         leftMin = -1
         leftMax = 1
@@ -221,7 +258,6 @@ class CoreNode(Node):
         # Convert the 0-1 range into a value in the right range.
         return str(rightMin + (valueScaled * rightSpan))
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def send_controls(self, msg: CoreControl):
         if msg.turn_to_enable:
             command = (
@@ -247,42 +283,17 @@ class CoreNode(Node):
 
         # print(f"[Sys] Relaying: {command}")
 
-    def joint_command_callback(self, msg: JointState):
+    def cmd_vel_callback(self, msg: TwistStamped):
-        # So... topic based control node publishes JointState messages over /joint_commands
+        linear = msg.twist.linear.x
-        #  with len(msg.name) == 5 and len(msg.velocity) == 4... all 5 non-fixed joints
+        angular = -msg.twist.angular.z
-        #  are included in msg.name, but ig it is implied that msg.velocity only
-        #  includes velocities for the commanded joints (ros__parameters.joints).
-        # So, this will be much more hacky and less adaptable than I would like it to be.
-        if (
-            len(msg.name) != (4 if self.rover_platform == "testbed" else 5)
-            or len(msg.velocity) != 4
-            or len(msg.position) != 0
-        ):
-            self.get_logger().warning(
-                f"Received joint control message with unexpected number of joints. Ignoring."
-            )
-            return
-        if msg.name[-4:] != [  # type: ignore
-            "bl_wheel_joint",
-            "br_wheel_joint",
-            "fl_wheel_joint",
-            "fr_wheel_joint",
-        ]:
-            self.get_logger().warning(
-                f"Received joint control message with unexpected name[]. Ignoring."
-            )
-            return
 
-        (bl_vel, br_vel, fl_vel, fr_vel) = msg.velocity
+        vel_left_rads = (linear - (angular * CORE_WHEELBASE / 2)) / CORE_WHEEL_RADIUS
+        vel_right_rads = (linear + (angular * CORE_WHEELBASE / 2)) / CORE_WHEEL_RADIUS
 
-        bl_rpm = radps_to_rpm(bl_vel) * self.gear_ratio
+        vel_left_rpm = round((vel_left_rads * 60) / (2 * 3.14159)) * CORE_GEAR_RATIO
-        br_rpm = radps_to_rpm(br_vel) * self.gear_ratio
+        vel_right_rpm = round((vel_right_rads * 60) / (2 * 3.14159)) * CORE_GEAR_RATIO
-        fl_rpm = radps_to_rpm(fl_vel) * self.gear_ratio
-        fr_rpm = radps_to_rpm(fr_vel) * self.gear_ratio
 
-        self.send_viccan(
+        self.send_viccan(20, [vel_left_rpm, vel_right_rpm])
-            20, [fl_rpm, bl_rpm, fr_rpm, br_rpm]
-        )  # order expected by embedded
 
     def twist_man_callback(self, msg: Twist):
         linear = msg.linear.x  # [-1 1] for forward/back from left stick y
@@ -323,9 +334,15 @@ class CoreNode(Node):
         # Max duty cycle
         self.twist_max_duty = msg.max_duty  # twist_man_callback will handle this
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def send_cmd(self, msg: str):
-        self.anchor_pub.publish(String(data=msg))  # Publish to anchor for relay
+        if self.launch_mode == "anchor":
+            # self.get_logger().info(f"[Core to Anchor Relay] {msg}")
+            output = String()  # Convert to std_msg string
+            output.data = msg
+            self.anchor_pub.publish(output)
+        elif self.launch_mode == "core":
+            self.get_logger().info(f"[Core to MCU] {msg}")
+            self.ser.write(bytes(msg, "utf8"))
 
     def send_viccan(self, cmd_id: int, data: list[float]):
         self.anchor_tovic_pub_.publish(
@@ -337,7 +354,6 @@ class CoreNode(Node):
             )
         )
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def anchor_feedback(self, msg: String):
         output = msg.data
         parts = str(output.strip()).split(",")
@@ -407,16 +423,14 @@ class CoreNode(Node):
         # skill diff if not
 
         # Check message len to prevent crashing on bad data
-        if msg.command_id in self.viccan_msg_len_dict:
+        if msg.command_id in viccan_msg_len_dict:
-            expected_len = self.viccan_msg_len_dict[msg.command_id]
+            expected_len = viccan_msg_len_dict[msg.command_id]
             if len(msg.data) != expected_len:
                 self.get_logger().warning(
                     f"Ignoring VicCAN message with id {msg.command_id} due to unexpected data length (expected {expected_len}, got {len(msg.data)})"
                 )
                 return
 
-        self.feedback_new_state.header.stamp = msg.header.stamp
-
         match msg.command_id:
             # GNSS
             case 48:  # GNSS Latitude
@@ -443,7 +457,6 @@ class CoreNode(Node):
                 self.imu_state.linear_acceleration.x = float(msg.data[0])
                 self.imu_state.linear_acceleration.y = float(msg.data[1])
                 self.imu_state.linear_acceleration.z = float(msg.data[2])
-                self.feedback_new_state.orientation = float(msg.data[3])
                 # Deal with quaternion
                 r = Rotation.from_euler("z", float(msg.data[3]), degrees=True)
                 q = r.as_quat()
@@ -488,7 +501,6 @@ class CoreNode(Node):
                 self.feedback_new_state.board_voltage.v12 = float(msg.data[1]) / 100.0
                 self.feedback_new_state.board_voltage.v5 = float(msg.data[2]) / 100.0
                 self.feedback_new_state.board_voltage.v3 = float(msg.data[3]) / 100.0
-                self.feedback_new_state.board_voltage.header.stamp = msg.header.stamp
             # Baro
             case 56:  # BMP temperature, altitude, pressure
                 self.baro_state.temperature = float(msg.data[0])
@@ -501,12 +513,14 @@ class CoreNode(Node):
                 motorId = round(float(msg.data[0]))
                 position = float(msg.data[1])
                 velocity = float(msg.data[2])
-                joint_state_msg = JointState()
+                joint_state_msg = (
+                    JointState()
+                )  # TODO: not sure if all motors should be in each message or not
                 joint_state_msg.position = [
-                    position * (2 * pi) / self.gear_ratio
+                    position * (2 * pi) / CORE_GEAR_RATIO
                 ]  # revolutions to radians
                 joint_state_msg.velocity = [
-                    velocity * (2 * pi / 60.0) / self.gear_ratio
+                    velocity * (2 * pi / 60.0) / CORE_GEAR_RATIO
                 ]  # RPM to rad/s
 
                 motor: RevMotorState | None = None
@@ -514,42 +528,52 @@ class CoreNode(Node):
                 match motorId:
                     case 1:
                         motor = self.feedback_new_state.fl_motor
-                        joint_state_msg.name = ["fl_wheel_joint"]
+                        joint_state_msg.name = ["fl_motor_joint"]
                     case 2:
                         motor = self.feedback_new_state.bl_motor
-                        joint_state_msg.name = ["bl_wheel_joint"]
+                        joint_state_msg.name = ["bl_motor_joint"]
                     case 3:
                         motor = self.feedback_new_state.fr_motor
-                        joint_state_msg.name = ["fr_wheel_joint"]
+                        joint_state_msg.name = ["fr_motor_joint"]
                     case 4:
                         motor = self.feedback_new_state.br_motor
-                        joint_state_msg.name = ["br_wheel_joint"]
+                        joint_state_msg.name = ["br_motor_joint"]
                     case _:
                         self.get_logger().warning(
                             f"Ignoring REV motor feedback 58 with invalid motorId {motorId}"
                         )
                         return
 
-                if motor:
-                    motor.position = position
-                    motor.velocity = velocity
-
-                # make the fucking shit work
-                if self.rover_platform == "clucky":
-                    joint_state_msg.name.append("left_suspension_joint")
-                    joint_state_msg.position.append(0.0)
-                    joint_state_msg.velocity.append(0.0)
-
                 joint_state_msg.header.stamp = msg.header.stamp
                 self.joint_state_pub_.publish(joint_state_msg)
             case _:
                 return
 
-    @deprecated("Uses an old message type. Will be removed at some point.")
     def publish_feedback(self):
         # self.get_logger().info(f"[Core] {self.core_feedback}")
         self.feedback_pub.publish(self.core_feedback)
 
+    def ping_callback(self, request, response):
+        return response
+
+    @staticmethod
+    def list_serial_ports():
+        return glob.glob("/dev/ttyUSB*") + glob.glob("/dev/ttyACM*")
+
+    def cleanup(self):
+        print("Cleaning up before terminating...")
+        try:
+            if self.ser.is_open:
+                self.ser.close()
+        except Exception as e:
+            exit(0)
+
+
+def myexcepthook(type, value, tb):
+    print("Uncaught exception:", type, value)
+    if serial_pub:
+        serial_pub.cleanup()
+
 
 def map_range(
     value: float, in_min: float, in_max: float, out_min: float, out_max: float
@@ -557,31 +581,19 @@ def map_range(
     return (value - in_min) * (out_max - out_min) / (in_max - in_min) + out_min
 
 
-def radps_to_rpm(radps: float):
-    return radps * 60 / (2 * pi)
-
-
-def exit_handler(signum, frame):
-    print("Caught SIGTERM. Exiting...")
-    rclpy.try_shutdown()
-    sys.exit(0)
-
-
 def main(args=None):
     rclpy.init(args=args)
+    sys.excepthook = myexcepthook
 
-    # Catch termination signals and exit cleanly
+    global serial_pub
-    signal.signal(signal.SIGTERM, exit_handler)
 
-    core_node = CoreNode()
+    serial_pub = SerialRelay()
-
+    serial_pub.run()
-    try:
-        rclpy.spin(core_node)
-    except (KeyboardInterrupt, ExternalShutdownException):
-        pass
-    finally:
-        rclpy.try_shutdown()
 
 
 if __name__ == "__main__":
+    # signal.signal(signal.SIGTSTP, lambda signum, frame: sys.exit(0))  # Catch Ctrl+Z and exit cleanly
+    signal.signal(
+        signal.SIGTERM, lambda signum, frame: sys.exit(0)
+    )  # Catch termination signals and exit cleanly
     main()

src/core_pkg/core_pkg/core_ptz.py

@@ -262,7 +262,7 @@ class PtzNode(Node):
             f"[{self.get_clock().now().nanoseconds / 1e9:.2f}] PTZ Node: {message_text}"
         )
         self.debug_pub.publish(msg)
-        self.get_logger().debug(message_text)
+        self.get_logger().info(message_text)
 
     def run_async_func(self, coro):
         """Run an async function in the event loop."""

src/core_pkg/package.xml

@@ -3,17 +3,15 @@
 <package format="3">
   <name>core_pkg</name>
   <version>1.0.0</version>
-  <description>Relays topics related to Core between VicCAN (through Anchor) and basestation.</description>
+  <description>Core rover control package to handle command interpretation and embedded interfacing.</description>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
+  <depend>common_interfaces</depend>
-  <exec_depend>common_interfaces</exec_depend>
+  <depend>python3-scipy</depend>
-  <exec_depend>python3-scipy</exec_depend>
+  <depend>python-crccheck-pip</depend>
-  <exec_depend>python-crccheck-pip</exec_depend>
+  <depend>astra_msgs</depend>
-
-  <exec_depend>astra_msgs</exec_depend>
 
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>

src/core_pkg/setup.cfg

@@ -2,5 +2,3 @@
 script_dir=$base/lib/core_pkg
 [install]
 install_scripts=$base/lib/core_pkg
-[build_scripts]
-executable= /usr/bin/env python3

src/core_pkg/setup.py

@@ -4,7 +4,7 @@ package_name = "core_pkg"
 
 setup(
     name=package_name,
-    version="1.0.0",
+    version="0.0.0",
     packages=find_packages(exclude=["test"]),
     data_files=[
         ("share/ament_index/resource_index/packages", ["resource/" + package_name]),
@@ -12,13 +12,14 @@ setup(
     ],
     install_requires=["setuptools"],
     zip_safe=True,
-    maintainer="David Sharpe",
+    maintainer="tristan",
-    maintainer_email="ds0196@uah.edu",
+    maintainer_email="tristanmcginnis26@gmail.com",
-    description="Relays topics related to Core between VicCAN (through Anchor) and basestation.",
+    description="Core rover control package to handle command interpretation and embedded interfacing.",
-    license="AGPL-3.0-only",
+    license="All Rights Reserved",
     entry_points={
         "console_scripts": [
             "core = core_pkg.core_node:main",
+            "headless = core_pkg.core_headless:main",
             "ptz = core_pkg.core_ptz:main",
         ],
     },

src/headless_pkg/package.xml

@@ -3,15 +3,14 @@
 <package format="3">
   <name>headless_pkg</name>
   <version>1.0.0</version>
-  <description>Provides headless rover control, similar to Basestation.</description>
+  <description>Headless rover control package to handle command interpretation and embedded interfacing.</description>
   <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
+  <depend>common_interfaces</depend>
-  <exec_depend>common_interfaces</exec_depend>
+  <depend>python3-pygame</depend>
-  <exec_depend>python3-pygame</exec_depend>
+  <depend>astra_msgs</depend>
-  <exec_depend>astra_msgs</exec_depend>
 
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>

src/headless_pkg/setup.cfg

@@ -2,5 +2,3 @@
 script_dir=$base/lib/headless_pkg
 [install]
 install_scripts=$base/lib/headless_pkg
-[build_scripts]
-executable= /usr/bin/env python3

src/headless_pkg/setup.py

@@ -14,9 +14,11 @@ setup(
     zip_safe=True,
     maintainer="David Sharpe",
     maintainer_email="ds0196@uah.edu",
-    description="Provides headless rover control, similar to Basestation.",
+    description="Headless rover control package to handle command interpretation and embedded interfacing.",
-    license="AGPL-3.0-only",
+    license="All Rights Reserved",
     entry_points={
-        "console_scripts": ["headless_full = src.headless_node:main"],
+        "console_scripts": [
+            "headless_full = src.headless_node:main",
+        ],
     },
 )

src/headless_pkg/src/headless_node.py

@@ -1,32 +1,22 @@
 import rclpy
 from rclpy.node import Node
-from rclpy.executors import ExternalShutdownException
 from rclpy import qos
 from rclpy.duration import Duration
 
 import signal
 import time
+import atexit
 
 import os
 import sys
-import pwd
+import threading
-import grp
+import glob
 from math import copysign
 
-from std_srvs.srv import Trigger
+from std_msgs.msg import String
-from std_msgs.msg import Header
+from geometry_msgs.msg import Twist
-from geometry_msgs.msg import Twist, TwistStamped
-from control_msgs.msg import JointJog
 from astra_msgs.msg import CoreControl, ArmManual, BioControl
-from astra_msgs.msg import CoreCtrlState, ArmCtrlState
+from astra_msgs.msg import CoreCtrlState
-
-import warnings
-
-# Literally headless
-warnings.filterwarnings(
-    "ignore",
-    message="Your system is avx2 capable but pygame was not built with support for it.",
-)
 
 import pygame
 
@@ -41,44 +31,26 @@ CORE_STOP_TWIST_MSG = Twist()  # "
 ARM_STOP_MSG = ArmManual()  # "
 BIO_STOP_MSG = BioControl()  # "
 
-
 control_qos = qos.QoSProfile(
     history=qos.QoSHistoryPolicy.KEEP_LAST,
     depth=2,
     reliability=qos.QoSReliabilityPolicy.BEST_EFFORT,
     durability=qos.QoSDurabilityPolicy.VOLATILE,
-    # deadline=Duration(seconds=1),
+    deadline=Duration(seconds=1),
-    # lifespan=Duration(nanoseconds=500_000_000),  # 500ms
+    lifespan=Duration(nanoseconds=500_000_000),  # 500ms
-    # liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
+    liveliness=qos.QoSLivelinessPolicy.SYSTEM_DEFAULT,
-    # liveliness_lease_duration=Duration(seconds=5),
+    liveliness_lease_duration=Duration(seconds=5),
 )
 
-
+CORE_MODE = "twist"  # "twist" or "duty"
-STICK_DEADZONE = float(os.getenv("STICK_DEADZONE", "0.05"))
-ARM_DEADZONE = float(os.getenv("ARM_DEADZONE", "0.2"))
 
 
 class Headless(Node):
-    # Every non-fixed joint defined in Arm's URDF
-    # Used for JointState and JointJog messsages
-    all_joint_names = [
-        "axis_0_joint",
-        "axis_1_joint",
-        "axis_2_joint",
-        "axis_3_joint",
-        "wrist_yaw_joint",
-        "wrist_roll_joint",
-        "ef_gripper_left_joint",
-    ]
-
     def __init__(self):
         # Initialize pygame first
         pygame.init()
         pygame.joystick.init()
-        super().__init__("headless_node")
+        super().__init__("headless")
-
-        ##################################################
-        # Preamble
 
         # Wait for anchor to start
         pub_info = self.get_publishers_info_by_topic("/anchor/from_vic/debug")
@@ -99,175 +71,41 @@ class Headless(Node):
             print("No gamepad found. Waiting...")
 
         # Initialize the gamepad
-        id = 0
+        self.gamepad = pygame.joystick.Joystick(0)
-        while True:
-            self.num_gamepads = pygame.joystick.get_count()
-            if id >= self.num_gamepads:
-                self.get_logger().fatal("Ran out of controllers to try")
-                sys.exit(1)
-
-            try:
-                self.gamepad = pygame.joystick.Joystick(id)
         self.gamepad.init()
-            except Exception as e:
-                self.get_logger().error("Error when initializing gamepad")
-                self.get_logger().error(e)
-                id += 1
-                continue
         print(f"Gamepad Found: {self.gamepad.get_name()}")
 
-            if self.gamepad.get_numhats() == 0 or self.gamepad.get_numaxes() < 5:
+        self.create_timer(0.15, self.send_controls)
-                self.get_logger().error("Controller not correctly initialized.")
-                if not is_user_in_group("input"):
-                    self.get_logger().warning(
-                        "If using NixOS, you may need to add yourself to the 'input' group."
-                    )
-                if is_user_in_group("plugdev"):
-                    self.get_logger().warning(
-                        "If using NixOS, you may need to remove yourself from the 'plugdev' group."
-                    )
-            else:
-                break
-            id += 1
 
-        ##################################################
-        # Parameters
-
-        self.declare_parameter("use_old_topics", True)
-        self.use_old_topics = (
-            self.get_parameter("use_old_topics").get_parameter_value().bool_value
-        )
-
-        self.declare_parameter("use_cmd_vel", False)
-        self.use_cmd_vel = (
-            self.get_parameter("use_cmd_vel").get_parameter_value().bool_value
-        )
-
-        self.declare_parameter("use_bio", False)
-        self.use_bio = self.get_parameter("use_bio").get_parameter_value().bool_value
-
-        self.declare_parameter("use_arm_ik", False)
-        self.use_arm_ik = (
-            self.get_parameter("use_arm_ik").get_parameter_value().bool_value
-        )
-        # NOTE: only applicable if use_old_topics == True
-        self.declare_parameter("use_new_arm_manual_scheme", True)
-        self.use_new_arm_manual_scheme = (
-            self.get_parameter("use_new_arm_manual_scheme")
-            .get_parameter_value()
-            .bool_value
-        )
-
-        # Check parameter validity
-        if self.use_cmd_vel:
-            self.get_logger().info("Using cmd_vel for core control")
-            global CORE_MODE
-            CORE_MODE = "twist"
-        else:
-            self.get_logger().info("Using astra_msgs/CoreControl for core control")
-
-        if self.use_arm_ik and self.use_old_topics:
-            self.get_logger().fatal("Old topics do not support arm IK control.")
-            sys.exit(1)
-        if not self.use_new_arm_manual_scheme and not self.use_old_topics:
-            self.get_logger().warn(
-                f"New arm manual does not support old control scheme. Defaulting to new scheme."
-            )
-
-        self.ctrl_mode = "core"  # Start in core mode
-        self.core_brake_mode = False
-        self.core_max_duty = 0.5  # Default max duty cycle (walking speed)
-        self.arm_brake_mode = False
-        self.arm_laser = False
-
-        ##################################################
-        # Old Topics
-
-        if self.use_old_topics:
         self.core_publisher = self.create_publisher(CoreControl, "/core/control", 2)
-            self.arm_publisher = self.create_publisher(
+        self.arm_publisher = self.create_publisher(ArmManual, "/arm/control/manual", 2)
-                ArmManual, "/arm/control/manual", 2
-            )
         self.bio_publisher = self.create_publisher(BioControl, "/bio/control", 2)
 
-        ##################################################
-        # New Topics
-
-        if not self.use_old_topics:
         self.core_twist_pub_ = self.create_publisher(
             Twist, "/core/twist", qos_profile=control_qos
         )
-            self.core_cmd_vel_pub_ = self.create_publisher(
-                TwistStamped, "/diff_controller/cmd_vel", qos_profile=control_qos
-            )
         self.core_state_pub_ = self.create_publisher(
             CoreCtrlState, "/core/control/state", qos_profile=control_qos
         )
 
-            self.arm_manual_pub_ = self.create_publisher(
+        self.ctrl_mode = "core"  # Start in core mode
-                JointJog, "/arm/control/joint_jog", qos_profile=control_qos
+        self.core_brake_mode = False
-            )
+        self.core_max_duty = 0.5  # Default max duty cycle (walking speed)
-            self.arm_state_pub_ = self.create_publisher(
-                ArmCtrlState, "/arm/control/state", qos_profile=control_qos
-            )
-
-            self.arm_ik_twist_publisher = self.create_publisher(
-                TwistStamped, "/servo_node/delta_twist_cmds", qos_profile=control_qos
-            )
-            self.arm_ik_jointjog_publisher = self.create_publisher(
-                JointJog, "/servo_node/delta_joint_cmds", qos_profile=control_qos
-            )
-
-            # TODO: add new bio topics
-
-        ##################################################
-        # Timers
-
-        self.create_timer(0.1, self.send_controls)
-
-        ##################################################
-        # Services
-
-        # If using IK control, we have to "start" the servo node to enable it to accept commands
-        self.servo_start_client = None
-        if self.use_arm_ik:
-            self.get_logger().info("Starting servo node for IK control...")
-            self.servo_start_client = self.create_client(
-                Trigger, "/servo_node/start_servo"
-            )
-            timeout_counter = 0
-            while not self.servo_start_client.wait_for_service(timeout_sec=1.0):
-                self.get_logger().info("Waiting for servo_node/start_servo service...")
-                timeout_counter += 1
-                if timeout_counter >= 10:
-                    self.get_logger().error(
-                        "Servo's start service not available. IK control will not work."
-                    )
-                    break
-            if self.servo_start_client.service_is_ready():
-                self.servo_start_client.call_async(Trigger.Request())
 
         # Rumble when node is ready (returns False if rumble not supported)
         self.gamepad.rumble(0.7, 0.8, 150)
 
-        # Added so you can tell when it starts running after changing the constant logging to debug from info
+    def run(self):
-        self.get_logger().info("Defaulting to Core mode. Ready.")
+        # This thread makes all the update processes run in the background
+        thread = threading.Thread(target=rclpy.spin, args={self}, daemon=True)
+        thread.start()
 
-    def stop_all(self):
+        try:
-        if self.use_old_topics:
+            while rclpy.ok():
-            self.core_publisher.publish(CORE_STOP_MSG)
+                self.send_controls()
-            self.arm_publisher.publish(ARM_STOP_MSG)
+                time.sleep(0.1)  # Small delay to avoid CPU hogging
-            self.bio_publisher.publish(BIO_STOP_MSG)
+        except KeyboardInterrupt:
-        else:
+            sys.exit(0)
-            if self.use_cmd_vel:
-                self.core_cmd_vel_pub_.publish(self.core_cmd_vel_stop_msg())
-            else:
-                self.core_twist_pub_.publish(CORE_STOP_TWIST_MSG)
-            if self.use_arm_ik:
-                self.arm_ik_twist_publisher.publish(self.arm_ik_twist_stop_msg())
-            else:
-                self.arm_manual_pub_.publish(self.arm_manual_stop_msg())
-            # TODO: add bio here after implementing new topics
 
     def send_controls(self):
         """Read the gamepad state and publish control messages"""
@@ -277,10 +115,12 @@ class Headless(Node):
                 sys.exit(0)
 
         # Check if controller is still connected
-        if pygame.joystick.get_count() != self.num_gamepads:
+        if pygame.joystick.get_count() == 0:
             print("Gamepad disconnected. Exiting...")
-            # Stop the rover if controller disconnected
+            # Send one last zero control message
-            self.stop_all()
+            self.core_publisher.publish(CORE_STOP_MSG)
+            self.arm_publisher.publish(ARM_STOP_MSG)
+            self.bio_publisher.publish(BIO_STOP_MSG)
             self.get_logger().info("Final stop commands sent. Shutting down.")
             # Clean up
             pygame.quit()
@@ -296,51 +136,20 @@ class Headless(Node):
             new_ctrl_mode = "core"
 
         if new_ctrl_mode != self.ctrl_mode:
-            self.stop_all()
             self.gamepad.rumble(0.6, 0.7, 75)
             self.ctrl_mode = new_ctrl_mode
             self.get_logger().info(f"Switched to {self.ctrl_mode} control mode")
-            if self.ctrl_mode == "arm" and self.use_bio:
-                self.get_logger().warning("NOTE: Using bio instead of arm.")
 
-        # Actually send the controls
+        # CORE
-        if self.ctrl_mode == "core":
+        if self.ctrl_mode == "core" and CORE_MODE == "duty":
-            self.send_core()
-            if self.use_old_topics:
-                if self.use_bio:
-                    self.bio_publisher.publish(BIO_STOP_MSG)
-                else:
-                    self.arm_publisher.publish(ARM_STOP_MSG)
-            # New topics shouldn't need to constantly send zeroes imo
-        else:
-            if self.use_bio:
-                self.send_bio()
-            else:
-                self.send_arm()
-            if self.use_old_topics:
-                self.core_publisher.publish(CORE_STOP_MSG)
-            # Ditto
-
-    def send_core(self):
-        # Collect controller state
-        left_stick_x = stick_deadzone(self.gamepad.get_axis(0))
-        left_stick_y = stick_deadzone(self.gamepad.get_axis(1))
-        left_trigger = stick_deadzone(self.gamepad.get_axis(2))
-        right_stick_x = stick_deadzone(self.gamepad.get_axis(3))
-        right_stick_y = stick_deadzone(self.gamepad.get_axis(4))
-        right_trigger = stick_deadzone(self.gamepad.get_axis(5))
-        button_a = self.gamepad.get_button(0)
-        button_b = self.gamepad.get_button(1)
-        button_x = self.gamepad.get_button(2)
-        button_y = self.gamepad.get_button(3)
-        left_bumper = self.gamepad.get_button(4)
-        right_bumper = self.gamepad.get_button(5)
-        dpad_input = self.gamepad.get_hat(0)
-
-        if self.use_old_topics:
             input = CoreControl()
             input.max_speed = 90
 
+            # Collect controller state
+            left_stick_y = deadzone(self.gamepad.get_axis(1))
+            right_stick_y = deadzone(self.gamepad.get_axis(4))
+            right_trigger = deadzone(self.gamepad.get_axis(5))
+
             # Right wheels
             input.right_stick = float(round(-1 * right_stick_y, 2))
 
@@ -355,30 +164,31 @@ class Headless(Node):
             self.get_logger().info(f"[Ctrl] {output}")
 
             self.core_publisher.publish(input)
+            self.arm_publisher.publish(ARM_STOP_MSG)
+            # self.bio_publisher.publish(BIO_STOP_MSG)
 
-        else:  # New topics
+        elif self.ctrl_mode == "core" and CORE_MODE == "twist":
-            twist = Twist()
+            input = Twist()
+
+            # Collect controller state
+            left_stick_y = deadzone(self.gamepad.get_axis(1))
+            right_stick_x = deadzone(self.gamepad.get_axis(3))
+            button_a = self.gamepad.get_button(0)
+            left_bumper = self.gamepad.get_button(4)
+            right_bumper = self.gamepad.get_button(5)
 
             # Forward/back and Turn
-            twist.linear.x = -1.0 * left_stick_y
+            input.linear.x = -1.0 * left_stick_y
-            twist.angular.z = -1.0 * copysign(
+            input.angular.z = -1.0 * copysign(
                 right_stick_x**2, right_stick_x
             )  # Exponent for finer control (curve)
 
-            # This kinda looks dumb being seperate from the following block, but this
-            # maintains the separation between modifying the control message and sending it
-            if self.use_cmd_vel:
-                twist.linear.x *= 1.5
-                twist.angular.z *= 0.5
-
             # Publish
-            if self.use_cmd_vel:
+            self.core_twist_pub_.publish(input)
-                header = Header(stamp=self.get_clock().now().to_msg())
+            self.arm_publisher.publish(ARM_STOP_MSG)
-                self.core_cmd_vel_pub_.publish(TwistStamped(header=header, twist=twist))
+            # self.bio_publisher.publish(BIO_STOP_MSG)
-            else:
+            self.get_logger().info(
-                self.core_twist_pub_.publish(twist)
+                f"[Core Ctrl] Linear: {round(input.linear.x, 2)}, Angular: {round(input.angular.z, 2)}"
-            self.get_logger().debug(
-                f"[Core Ctrl] Linear: {round(twist.linear.x, 2)}, Angular: {round(twist.angular.z, 2)}"
             )
 
             # Brake mode
@@ -401,36 +211,25 @@ class Headless(Node):
                 state_msg = CoreCtrlState()
                 state_msg.brake_mode = bool(self.core_brake_mode)
                 state_msg.max_duty = float(self.core_max_duty)
-
                 self.core_state_pub_.publish(state_msg)
                 self.get_logger().info(
                     f"[Core State] Brake: {self.core_brake_mode}, Max Duty: {self.core_max_duty}"
                 )
 
-    def send_arm(self):
+        # ARM and BIO
+        if self.ctrl_mode == "arm":
+            arm_input = ArmManual()
+
             # Collect controller state
-        left_stick_x = stick_deadzone(self.gamepad.get_axis(0))
+            left_stick_x = deadzone(self.gamepad.get_axis(0))
-        left_stick_y = stick_deadzone(self.gamepad.get_axis(1))
+            left_stick_y = deadzone(self.gamepad.get_axis(1))
-        left_trigger = stick_deadzone(self.gamepad.get_axis(2))
+            left_trigger = deadzone(self.gamepad.get_axis(2))
-        right_stick_x = stick_deadzone(self.gamepad.get_axis(3))
+            right_stick_x = deadzone(self.gamepad.get_axis(3))
-        right_stick_y = stick_deadzone(self.gamepad.get_axis(4))
+            right_stick_y = deadzone(self.gamepad.get_axis(4))
-        right_trigger = stick_deadzone(self.gamepad.get_axis(5))
+            right_trigger = deadzone(self.gamepad.get_axis(5))
-        button_a = self.gamepad.get_button(0)
-        button_b = self.gamepad.get_button(1)
-        button_x = self.gamepad.get_button(2)
-        button_y = self.gamepad.get_button(3)
-        left_bumper = self.gamepad.get_button(4)
             right_bumper = self.gamepad.get_button(5)
             dpad_input = self.gamepad.get_hat(0)
 
-        # OLD MANUAL
-        # ==========
-
-        if not self.use_arm_ik and self.use_old_topics:
-            arm_input = ArmManual()
-
-            # OLD ARM MANUAL CONTROL SCHEME
-            if not self.use_new_arm_manual_scheme:
             # EF Grippers
             if left_trigger > 0 and right_trigger > 0:
                 arm_input.gripper = 0
@@ -473,294 +272,39 @@ class Headless(Node):
                 if abs(right_stick_y) > 0.15:
                     arm_input.axis3 = -1 * round(right_stick_y)
 
-            # NEW ARM MANUAL CONTROL SCHEME
+            # BIO
-            if self.use_new_arm_manual_scheme:
-                # Right stick: EF yaw and axis 3
-                # Left stick: axis 1 and 2
-                # D-pad: axis 0 and _
-                # Triggers: EF grippers
-                # Bumpers: EF roll
-                # A: brake
-                # B: linear actuator in
-                # X: _
-                # Y: linear actuator out
-
-                # Right stick: EF yaw and axis 3
-                arm_input.effector_yaw = stick_to_arm_direction(right_stick_x)
-                arm_input.axis3 = -1 * stick_to_arm_direction(right_stick_y)
-
-                # Left stick: axis 1 and 2
-                arm_input.axis1 = stick_to_arm_direction(left_stick_x)
-                arm_input.axis2 = -1 * stick_to_arm_direction(left_stick_y)
-
-                # D-pad: axis 0 and _
-                arm_input.axis0 = int(dpad_input[0])
-
-                # Triggers: EF Grippers
-                if left_trigger > 0 and right_trigger > 0:
-                    arm_input.gripper = 0
-                elif left_trigger > 0:
-                    arm_input.gripper = -1
-                elif right_trigger > 0:
-                    arm_input.gripper = 1
-
-                # Bumpers: EF roll
-                if left_bumper > 0 and right_bumper > 0:
-                    arm_input.effector_roll = 0
-                elif left_bumper > 0:
-                    arm_input.effector_roll = -1
-                elif right_bumper > 0:
-                    arm_input.effector_roll = 1
-
-                # A: brake
-                if button_a:
-                    arm_input.brake = True
-
-                # Y: linear actuator
-                if button_y and not button_b:
-                    arm_input.linear_actuator = 1
-                elif button_b and not button_y:
-                    arm_input.linear_actuator = -1
-                else:
-                    arm_input.linear_actuator = 0
-
-            self.arm_publisher.publish(arm_input)
-
-        # NEW MANUAL
-        # ==========
-
-        elif not self.use_arm_ik and not self.use_old_topics:
-            arm_input = JointJog()
-            arm_input.header.frame_id = "base_link"
-            arm_input.header.stamp = self.get_clock().now().to_msg()
-            arm_input.joint_names = self.all_joint_names
-            arm_input.velocities = [0.0] * len(self.all_joint_names)
-
-            # Right stick: EF yaw and axis 3
-            # Left stick: axis 1 and 2
-            # D-pad: axis 0 and _
-            # Triggers: EF grippers
-            # Bumpers: EF roll
-            # A: brake
-            # B: linear actuator in
-            # X: _
-            # Y: linear actuator out
-
-            # Right stick: EF yaw and axis 3
-            arm_input.velocities[self.all_joint_names.index("wrist_yaw_joint")] = float(
-                stick_to_arm_direction(right_stick_x)
-            )
-            arm_input.velocities[self.all_joint_names.index("axis_3_joint")] = float(
-                stick_to_arm_direction(right_stick_y)
-            )
-
-            # Left stick: axis 1 and 2
-            arm_input.velocities[self.all_joint_names.index("axis_1_joint")] = float(
-                stick_to_arm_direction(left_stick_x)
-            )
-            arm_input.velocities[self.all_joint_names.index("axis_2_joint")] = float(
-                stick_to_arm_direction(left_stick_y)
-            )
-
-            # D-pad: axis 0 and _
-            arm_input.velocities[self.all_joint_names.index("axis_0_joint")] = float(
-                dpad_input[0]
-            )
-
-            # Triggers: EF Grippers
-            if left_trigger > 0 and right_trigger > 0:
-                arm_input.velocities[
-                    self.all_joint_names.index("ef_gripper_left_joint")
-                ] = 0.0
-            elif left_trigger > 0:
-                arm_input.velocities[
-                    self.all_joint_names.index("ef_gripper_left_joint")
-                ] = -1.0
-            elif right_trigger > 0:
-                arm_input.velocities[
-                    self.all_joint_names.index("ef_gripper_left_joint")
-                ] = 1.0
-
-            # Bumpers: EF roll
-            arm_input.velocities[self.all_joint_names.index("wrist_roll_joint")] = (
-                right_bumper - left_bumper
-            )
-
-            # A: brake
-            new_brake_mode = button_a
-
-            # X: laser
-            new_laser = button_x
-
-            self.arm_manual_pub_.publish(arm_input)
-
-            # Only publish state if needed
-            if new_brake_mode != self.arm_brake_mode or new_laser != self.arm_laser:
-                self.arm_brake_mode = new_brake_mode
-                self.arm_laser = new_laser
-                state_msg = ArmCtrlState()
-                state_msg.brake_mode = bool(self.arm_brake_mode)
-                state_msg.laser = bool(self.arm_laser)
-
-                self.arm_state_pub_.publish(state_msg)
-                self.get_logger().info(
-                    f"[Arm State] Brake: {self.arm_brake_mode}, Laser: {self.arm_laser}"
-                )
-
-        # IK (ONLY NEW)
-        # =============
-
-        elif self.use_arm_ik:
-            arm_twist = TwistStamped()
-            arm_twist.header.frame_id = "base_link"
-            arm_twist.header.stamp = self.get_clock().now().to_msg()
-            arm_jointjog = JointJog()
-            arm_jointjog.header.frame_id = "base_link"
-            arm_jointjog.header.stamp = self.get_clock().now().to_msg()
-
-            # Right stick: linear y and linear x
-            # Left stick: angular z and linear z
-            # D-pad: angular y and _
-            # Triggers: EF grippers
-            # Bumpers: angular x
-            # A: brake
-            # B: IK mode
-            # X: manual mode
-            # Y: linear actuator
-
-            # Right stick: linear y and linear x
-            arm_twist.twist.linear.y = float(right_stick_x)
-            arm_twist.twist.linear.x = float(right_stick_y)
-
-            # Left stick: angular z and linear z
-            arm_twist.twist.angular.z = float(-1 * left_stick_x)
-            arm_twist.twist.linear.z = float(-1 * left_stick_y)
-            # D-pad: angular y and _
-            arm_twist.twist.angular.y = (
-                float(0)
-                if dpad_input[0] == 0
-                else float(-1 * copysign(0.75, dpad_input[0]))
-            )
-
-            # Triggers: EF Grippers
-            if left_trigger > 0 or right_trigger > 0:
-                arm_jointjog.joint_names.append("ef_gripper_left_joint")  # type: ignore
-                arm_jointjog.velocities.append(float(right_trigger - left_trigger))
-
-            # Bumpers: angular x
-            if left_bumper > 0 and right_bumper > 0:
-                arm_twist.twist.angular.x = float(0)
-            elif left_bumper > 0:
-                arm_twist.twist.angular.x = float(1)
-            elif right_bumper > 0:
-                arm_twist.twist.angular.x = float(-1)
-
-            self.arm_ik_twist_publisher.publish(arm_twist)
-            # self.arm_ik_jointjog_publisher.publish(arm_jointjog)  # TODO: Figure this shit out
-
-    def send_bio(self):
-        # Collect controller state
-        left_stick_x = stick_deadzone(self.gamepad.get_axis(0))
-        left_stick_y = stick_deadzone(self.gamepad.get_axis(1))
-        left_trigger = stick_deadzone(self.gamepad.get_axis(2))
-        right_stick_x = stick_deadzone(self.gamepad.get_axis(3))
-        right_stick_y = stick_deadzone(self.gamepad.get_axis(4))
-        right_trigger = stick_deadzone(self.gamepad.get_axis(5))
-        button_a = self.gamepad.get_button(0)
-        button_b = self.gamepad.get_button(1)
-        button_x = self.gamepad.get_button(2)
-        button_y = self.gamepad.get_button(3)
-        left_bumper = self.gamepad.get_button(4)
-        right_bumper = self.gamepad.get_button(5)
-        dpad_input = self.gamepad.get_hat(0)
-
-        if self.use_old_topics:
             bio_input = BioControl(
                 bio_arm=int(left_stick_y * -100),
                 drill_arm=int(round(right_stick_y) * -100),
             )
 
             # Drill motor (FAERIE)
-            if left_trigger > 0 or right_trigger > 0:
+            if deadzone(left_trigger) > 0 or deadzone(right_trigger) > 0:
                 bio_input.drill = int(
                     30 * (right_trigger - left_trigger)
                 )  # Max duty cycle 30%
 
-            self.bio_publisher.publish(bio_input)
+            self.core_publisher.publish(CORE_STOP_MSG)
-
+            self.arm_publisher.publish(arm_input)
-        else:
+            # self.bio_publisher.publish(bio_input)
-            pass  # TODO: implement new bio control topics
-
-    def core_cmd_vel_stop_msg(self):
-        return TwistStamped(
-            header=Header(frame_id="base_link", stamp=self.get_clock().now().to_msg())
-        )
-
-    def arm_manual_stop_msg(self):
-        return JointJog(
-            header=Header(frame_id="base_link", stamp=self.get_clock().now().to_msg()),
-            joint_names=self.all_joint_names,
-            velocities=[0.0] * len(self.all_joint_names),
-        )
-
-    def arm_ik_twist_stop_msg(self):
-        return TwistStamped(
-            header=Header(frame_id="base_link", stamp=self.get_clock().now().to_msg())
-        )
 
 
-def stick_deadzone(value: float, threshold=STICK_DEADZONE) -> float:
+def deadzone(value: float, threshold=0.05) -> float:
     """Apply a deadzone to a joystick input so the motors don't sound angry"""
     if abs(value) < threshold:
         return 0
     return value
 
 
-def stick_to_arm_direction(value: float, threshold=ARM_DEADZONE) -> int:
-    """Apply a larger deadzone to a stick input and make digital/binary instead of analog"""
-    if abs(value) < threshold:
-        return 0
-    return int(copysign(1, value))
-
-
-def is_user_in_group(group_name: str) -> bool:
-    # Copied from https://zetcode.com/python/os-getgrouplist/
-    try:
-        username = os.getlogin()
-
-        # Get group ID from name
-        group_info = grp.getgrnam(group_name)
-        target_gid = group_info.gr_gid
-
-        # Get user's groups
-        user_info = pwd.getpwnam(username)
-        user_groups = os.getgrouplist(username, user_info.pw_gid)
-
-        return target_gid in user_groups
-    except KeyError:
-        return False
-
-
-def exit_handler(signum, frame):
-    print("Caught SIGTERM. Exiting...")
-    rclpy.try_shutdown()
-    sys.exit(0)
-
-
 def main(args=None):
-    try:
     rclpy.init(args=args)
-
-        # Catch termination signals and exit cleanly
-        signal.signal(signal.SIGTERM, exit_handler)
-
     node = Headless()
     rclpy.spin(node)
-    except (KeyboardInterrupt, ExternalShutdownException):
+    rclpy.shutdown()
-        print("Caught shutdown signal. Exiting...")
-    finally:
-        rclpy.try_shutdown()
 
 
 if __name__ == "__main__":
+    signal.signal(
+        signal.SIGTERM, lambda signum, frame: sys.exit(0)
+    )  # Catch termination signals and exit cleanly
     main()

src/latency_tester/src/embedded_ping.cpp

@@ -26,7 +26,7 @@ class LatencyTester : public rclcpp::Node
 {
 public:
     LatencyTester()
-    : Node("latency_tester"), count_(0)
+    : Node("latency_tester"), count_(0), target_mcu_("core")
     {
         publisher_ = this->create_publisher<std_msgs::msg::String>("/anchor/relay", 10);
         timer_ = this->create_wall_timer(
@@ -35,8 +35,6 @@ public:
             "/anchor/debug",
             10,
             std::bind(&LatencyTester::response_callback, this, std::placeholders::_1));
-
-        target_mcu_ = this->declare_parameter<std::string>("target_mcu", "core");
     }
 
 private:

src/moveit_servo/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.8)
+project(moveit_servo)
+
+if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  add_compile_options(-Wall -Wextra -Wpedantic)
+endif()
+
+# find dependencies
+find_package(ament_cmake REQUIRED)
+# uncomment the following section in order to fill in
+# further dependencies manually.
+# find_package(<dependency> REQUIRED)
+
+if(BUILD_TESTING)
+  find_package(ament_lint_auto REQUIRED)
+  # the following line skips the linter which checks for copyrights
+  # comment the line when a copyright and license is added to all source files
+  set(ament_cmake_copyright_FOUND TRUE)
+  # the following line skips cpplint (only works in a git repo)
+  # comment the line when this package is in a git repo and when
+  # a copyright and license is added to all source files
+  set(ament_cmake_cpplint_FOUND TRUE)
+  ament_lint_auto_find_test_dependencies()
+endif()
+
+ament_package()

src/moveit_servo/config/kinematics.yaml

@@ -0,0 +1,4 @@
+panda_arm:
+  kinematics_solver: kdl_kinematics_plugin/KDLKinematicsPlugin
+  kinematics_solver_search_resolution: 0.005
+  kinematics_solver_timeout: 0.05

src/moveit_servo/launch/servo.launch.py

@@ -0,0 +1,25 @@
+from launch import LaunchDescription
+from launch_ros.actions import Node
+from moveit_configs_utils import MoveItConfigsBuilder
+
+def generate_launch_description():
+    moveit_config = (
+        MoveItConfigsBuilder("astra_descriptions")
+        .robot_description(file_path="config/robot.urdf.xacro")
+        .to_moveit_configs()
+    )
+
+    servo_node = Node(
+        package="moveit_servo",
+        executable="servo_node",
+        name="servo_node",
+        parameters=[
+            "config/servo_parameters.yaml",
+            moveit_config.robot_description,
+            moveit_config.robot_description_semantic,
+            moveit_config.robot_description_kinematics,
+        ],
+        output="screen",
+    )
+
+    return LaunchDescription([servo_node])

src/moveit_servo/package.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>moveit_servo</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="aaron.m.davis@comcast.net">aaron</maintainer>
+  <license>TODO: License declaration</license>
+
+  <buildtool_depend>ament_cmake</buildtool_depend>
+
+  <test_depend>ament_lint_auto</test_depend>
+  <test_depend>ament_lint_common</test_depend>
+
+  <export>
+    <build_type>ament_cmake</build_type>
+  </export>
+</package>

treefmt.nix

@@ -1,8 +0,0 @@
-{ pkgs, ... }:
-{
-  projectRootFile = "flake.nix";
-  programs = {
-    nixfmt.enable = true;
-    black.enable = true;
-  };
-}