Merge pull request #36 from SHC-ASTRA/serial-buffer

Resolves Riley's comments, makes it so UTF-8 characters over 1 byte aren't destroyed

auto_start/auto_start_headless_full.sh

@@ -26,4 +26,3 @@ source $SCRIPT_DIR/../install/setup.bash
 
 # Launch the ROS 2 node
 ros2 run headless_pkg headless_full
-

auto_start/start_rosbag.sh

@@ -3,10 +3,10 @@ set -e
 
 SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
 
-[[ -z "$ANCHOR_WS" ]] && ANCHOR_WS="$SCRIPT_DIR/.."
-[[ -z "$AUTONOMY_WS" ]] && AUTONOMY_WS="$HOME/rover-Autonomy"
+[[ -z $ANCHOR_WS ]] && ANCHOR_WS="$SCRIPT_DIR/.."
+[[ -z $AUTONOMY_WS ]] && AUTONOMY_WS="$HOME/rover-Autonomy"
 BAG_LOCATION="$HOME/bags/autostart"
-[[ ! -d "$BAG_LOCATION" ]] && mkdir -p "$BAG_LOCATION"
+[[ ! -d $BAG_LOCATION ]] && mkdir -p "$BAG_LOCATION"
 
 # Wait for a network interface to be up (not necessarily online)
 while ! ip link show | grep -q "state UP"; do
@@ -16,7 +16,6 @@ done
 
 echo "[INFO] Network interface is up!"
 
-
 if command -v nixos-rebuild; then
   echo "[INFO] running on NixOS"
 else

flake.lock

@@ -24,16 +24,16 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1770108954,
-        "narHash": "sha256-VBj6bd4LPPSfsZJPa/UPPA92dOs6tmQo0XZKqfz/3W4=",
+        "lastModified": 1775216071,
+        "narHash": "sha256-PrPW70Fh1uLx3JxNV/NLeXjUhgfrZmi7ac8LJOlS0q4=",
         "owner": "lopsided98",
         "repo": "nix-ros-overlay",
-        "rev": "3d05d46451b376e128a1553e78b8870c75d7753a",
+        "rev": "197a2b55c4ed24f8b885a5b20b65f426fb6d57ca",
         "type": "github"
       },
       "original": {
         "owner": "lopsided98",
-        "ref": "develop",
+        "ref": "master",
         "repo": "nix-ros-overlay",
         "type": "github"
       }

flake.nix

@@ -2,7 +2,7 @@
   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 = {
@@ -31,6 +31,8 @@
           name = "ASTRA Anchor";
           packages = with pkgs; [
             colcon
+            socat
+            can-utils
             (python313.withPackages (
               p: with p; [
                 pyserial
@@ -96,7 +98,8 @@
     );
 
   nixConfig = {
-    extra-substituters = [ "https://ros.cachix.org" ];
-    extra-trusted-public-keys = [ "ros.cachix.org-1:dSyZxI8geDCJrwgvCOHDoAfOm5sV1wCPjBkKL+38Rvo=" ];
+    # Cache to pull ros packages from
+    extra-substituters = [ "https://ros.cachix.org" "https://attic.iid.ciirc.cvut.cz/ros" ];
+    extra-trusted-public-keys = [ "ros.cachix.org-1:dSyZxI8geDCJrwgvCOHDoAfOm5sV1wCPjBkKL+38Rvo=" "ros:JR95vUYsShSqfA1VTYoFt1Nz6uXasm5QrcOsGry9f6Q=" ];
   };
 }

scripts/reset-repo.bash

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+repo_root="$(git rev-parse --show-toplevel)"
+
+if [[ -z $repo_root ]]; then
+  echo "script must be run from within a git repo" >&2
+  exit 1
+fi
+
+cd $repo_root
+
+echo "this will nuke all of your current un-commited git changes, including any changes to submodules and any gitignored files. is this okay? (y/N)"
+read okay
+
+if [[ $okay != "y" ]]; then
+  echo "you didn't say exactly 'y'. aborting." >&2
+  exit 2
+fi
+
+echo
+
+echo "ok say goodbye to everything in this repo"
+git submodule deinit --all -f && echo "- submodules gone"
+git clean -fdx && echo "- gitignored changes gone"
+git add -A
+git reset HEAD --hard && echo "- everything else gone"
+git submodule update --init --recursive && echo "- brought the submodules back"
+echo
+
+echo "in theory that should've done it. let's make sure"
+status=$(git status --porcelain)
+echo $status
+if [[ -z $status ]]; then
+  echo "nice, all clean!"
+else
+  echo "uhh that's not supposed to be there. this is probably a bug in this script. good luck!" >&2
+  exit 3
+fi

scripts/test-connectors.bash

@@ -0,0 +1,463 @@
+#!/usr/bin/env bash
+
+# test script for anchor connectors (mock, serial, CAN)
+
+set -o pipefail
+
+repo_root="$(git rev-parse --show-toplevel)"
+
+if [[ -z $repo_root ]]; then
+  echo "script must be run from within the rover-ros2 repo" >&2
+  exit 1
+fi
+
+cd "$repo_root"
+
+# colors
+BOLD='\033[1m'
+RED='\033[1;31m'
+GREEN='\033[1;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+TESTS_PASSED=0
+TESTS_FAILED=0
+
+log() {
+  echo -e "${BOLD}${YELLOW}info:${NC} ${1}"
+}
+
+pass() {
+  echo -e "${BOLD}${GREEN}pass:${NC} ${1}"
+  TESTS_PASSED=$((TESTS_PASSED + 1))
+}
+
+fail() {
+  echo -e "${BOLD}${RED}fail:${NC} ${1}"
+  TESTS_FAILED=$((TESTS_FAILED + 1))
+}
+
+cleanup() {
+  log "cleaning up"
+  if [[ -n $ANCHOR_PID ]]; then
+    kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+    wait "$ANCHOR_PID" 2>/dev/null || true
+  fi
+  if [[ -n $SOCAT_PID ]]; then
+    kill -INT "$SOCAT_PID" 2>/dev/null || true
+    wait "$SOCAT_PID" 2>/dev/null || true
+  fi
+  rm -f /tmp/ttyACM9 /tmp/ttyOUT 2>/dev/null || true
+}
+
+trap cleanup EXIT
+
+source_ros2() {
+  source install/setup.bash
+}
+
+wait_for_topic() {
+  local topic="$1"
+  local timeout="${2:-5}"
+  local count=0
+  while ! ros2 topic list 2>/dev/null | grep -q "^${topic}$"; do
+    sleep 0.5
+    count=$((count + 1))
+    if [[ $count -ge $((timeout * 2)) ]]; then
+      return 1
+    fi
+  done
+  return 0
+}
+
+# run a ROS pub/echo test
+# usage: ros_pubsub_test <echo_topic> <pub_topic> <msg_type> <msg_data>
+# returns the echo output via stdout
+ros_pubsub_test() {
+  local echo_topic="$1"
+  local pub_topic="$2"
+  local msg_type="$3"
+  local msg_data="$4"
+
+  timeout 5 bash -c "
+    ros2 topic echo --once $echo_topic &
+    ECHO_PID=\$!
+    sleep 0.5
+    ros2 topic pub --once $pub_topic $msg_type \"$msg_data\" >/dev/null 2>&1
+    wait \$ECHO_PID
+  " 2>/dev/null || true
+}
+
+test_mock_connector() {
+  log "testing mock connector"
+
+  log "starting anchor with mock connector"
+  setsid ros2 run anchor_pkg anchor --ros-args -p connector:=mock &
+  ANCHOR_PID=$!
+  sleep 2
+
+  if ! kill -0 "$ANCHOR_PID" 2>/dev/null; then
+    fail "mock connector: anchor failed to start"
+    return 1
+  fi
+
+  if ! wait_for_topic "/anchor/to_vic/relay" 10; then
+    fail "mock connector: topics not available"
+    kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+    return 1
+  fi
+
+  log "anchor started successfully"
+
+  # test: relay -> debug
+  log "testing relay -> debug"
+  local output
+  output=$(ros_pubsub_test "/anchor/to_vic/debug" "/anchor/to_vic/relay" \
+    "astra_msgs/msg/VicCAN" '{mcu_name: \"core\", command_id: 50, data: [1.0, 2.0, 3.0, 4.0]}')
+
+  if [[ -n $output ]] && echo "$output" | grep -q "can_relay_tovic,core,50"; then
+    pass "mock connector: relay -> debug"
+  else
+    fail "mock connector: relay -> debug"
+  fi
+
+  # test: mock_mcu -> from_vic/core
+  log "testing mock_mcu (core) -> from_vic/core"
+  output=$(ros_pubsub_test "/anchor/from_vic/core" "/anchor/from_vic/mock_mcu" \
+    "astra_msgs/msg/VicCAN" '{mcu_name: \"core\", command_id: 10, data: [100.0, 200.0]}')
+
+  if [[ -n $output ]] && echo "$output" | grep -q "mcu_name: core" && echo "$output" | grep -q "command_id: 10"; then
+    pass "mock connector: mock_mcu -> from_vic/core"
+  else
+    fail "mock connector: mock_mcu -> from_vic/core"
+  fi
+
+  # test: mock_mcu -> from_vic/arm
+  log "testing mock_mcu (arm) -> from_vic/arm"
+  output=$(ros_pubsub_test "/anchor/from_vic/arm" "/anchor/from_vic/mock_mcu" \
+    "astra_msgs/msg/VicCAN" '{mcu_name: \"arm\", command_id: 55, data: [0.0, 450.0, 900.0, 0.0]}')
+
+  if [[ -n $output ]] && echo "$output" | grep -q "mcu_name: arm" && echo "$output" | grep -q "command_id: 55"; then
+    pass "mock connector: mock_mcu -> from_vic/arm"
+  else
+    fail "mock connector: mock_mcu -> from_vic/arm"
+  fi
+
+  # test: mock_mcu -> from_vic/bio
+  log "testing mock_mcu (citadel) -> from_vic/bio"
+  output=$(ros_pubsub_test "/anchor/from_vic/bio" "/anchor/from_vic/mock_mcu" \
+    "astra_msgs/msg/VicCAN" '{mcu_name: \"citadel\", command_id: 20, data: [5.0]}')
+
+  if echo "$output" | grep -q "mcu_name: citadel" && echo "$output" | grep -q "command_id: 20"; then
+    pass "mock connector: mock_mcu -> from_vic/bio"
+  else
+    fail "mock connector: mock_mcu -> from_vic/bio"
+  fi
+
+  # test: relay_string -> debug
+  log "testing relay_string -> debug"
+  output=$(ros_pubsub_test "/anchor/to_vic/debug" "/anchor/to_vic/relay_string" \
+    "std_msgs/msg/String" '{data: \"test_raw_string_data\"}')
+
+  if [[ -n $output ]] && echo "$output" | grep -q "test_raw_string_data"; then
+    pass "mock connector: relay_string -> debug"
+  else
+    fail "mock connector: relay_string -> debug"
+  fi
+
+  kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+  wait "$ANCHOR_PID" 2>/dev/null || true
+  ANCHOR_PID=""
+}
+
+test_serial_connector() {
+  log "testing serial connector"
+
+  log "creating virtual serial ports with socat"
+  socat pty,raw,echo=0,link=/tmp/ttyACM9 pty,raw,echo=0,link=/tmp/ttyOUT 2>/dev/null &
+  SOCAT_PID=$!
+  sleep 2
+
+  if ! kill -0 "$SOCAT_PID" 2>/dev/null; then
+    fail "serial connector: failed to create virtual serial ports"
+    return 1
+  fi
+
+  log "starting anchor with serial connector (override: /tmp/ttyACM9)"
+  setsid ros2 run anchor_pkg anchor --ros-args -p connector:=serial -p serial_override:=/tmp/ttyACM9 &
+  ANCHOR_PID=$!
+  sleep 2
+
+  if ! kill -0 "$ANCHOR_PID" 2>/dev/null; then
+    fail "serial connector: anchor failed to start"
+    kill -INT "$SOCAT_PID" 2>/dev/null || true
+    return 1
+  fi
+
+  if ! wait_for_topic "/anchor/to_vic/relay" 10; then
+    fail "serial connector: topics not available"
+    kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+    kill -INT "$SOCAT_PID" 2>/dev/null || true
+    return 1
+  fi
+
+  pass "serial connector: anchor starts with virtual serial"
+
+  # test: relay -> serial output (VicCAN encoding)
+  log "testing relay -> serial output"
+
+  local serial_out_file
+  serial_out_file=$(mktemp)
+
+  # Start head first (blocks waiting for input), then publish
+  timeout 5 head -n1 /tmp/ttyOUT >"$serial_out_file" &
+  local head_pid=$!
+  sleep 0.3
+  ros2 topic pub --once /anchor/to_vic/relay astra_msgs/msg/VicCAN \
+    '{mcu_name: "core", command_id: 30, data: [1.0, 2.0, 3.0, 4.0]}' >/dev/null 2>&1
+  wait $head_pid 2>/dev/null || true
+
+  local serial_out
+  serial_out=$(cat "$serial_out_file")
+  rm -f "$serial_out_file"
+
+  if [[ -n $serial_out ]] && echo "$serial_out" | grep -q "can_relay_tovic,core,30"; then
+    pass "serial connector: relay -> serial output"
+  else
+    fail "serial connector: relay -> serial output (got: $serial_out)"
+  fi
+
+  # test: serial input -> from_vic/core
+  log "testing serial input -> from_vic/core"
+
+  local output
+  output=$(timeout 5 bash -c '
+    ros2 topic echo --once /anchor/from_vic/core &
+    ECHO_PID=$!
+    sleep 0.5
+    echo "can_relay_fromvic,core,15,10.0,20.0,30.0,40.0" > /tmp/ttyOUT
+    sleep 0.5
+    echo "can_relay_fromvic,core,15,10.0,20.0,30.0,40.0" > /tmp/ttyOUT
+    wait $ECHO_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -q "mcu_name: core" && echo "$output" | grep -q "command_id: 15"; then
+    pass "serial connector: serial input -> from_vic/core"
+  else
+    fail "serial connector: serial input -> from_vic/core (got: $output)"
+  fi
+
+  # test: relay_string -> debug
+  log "testing relay_string -> debug"
+  output=$(ros_pubsub_test "/anchor/to_vic/debug" "/anchor/to_vic/relay_string" \
+    "std_msgs/msg/String" '{data: \"serial_test_string\"}')
+
+  if [[ -n $output ]] && echo "$output" | grep -q "serial_test_string"; then
+    pass "serial connector: relay_string -> debug"
+  else
+    fail "serial connector: relay_string -> debug"
+  fi
+
+  kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+  wait "$ANCHOR_PID" 2>/dev/null || true
+  ANCHOR_PID=""
+  kill -INT "$SOCAT_PID" 2>/dev/null || true
+  wait "$SOCAT_PID" 2>/dev/null || true
+  SOCAT_PID=""
+}
+
+test_can_connector() {
+  log "testing CAN connector"
+
+  log "starting anchor with CAN connector (override: vcan0)"
+  setsid ros2 run anchor_pkg anchor --ros-args -p connector:=can -p can_override:=vcan0 &
+  ANCHOR_PID=$!
+  sleep 2
+
+  if ! kill -0 "$ANCHOR_PID" 2>/dev/null; then
+    fail "CAN connector: anchor failed to start"
+    return 1
+  fi
+
+  if ! wait_for_topic "/anchor/to_vic/relay" 10; then
+    fail "CAN connector: topics not available"
+    kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+    return 1
+  fi
+
+  log "anchor started successfully"
+  sleep 1
+
+  # test: relay -> CAN bus
+  # core=1, int16x4=2, cmd=30 -> id = (1<<8)|(2<<6)|30 = 0x19E
+  log "testing relay -> CAN bus"
+
+  local output
+  output=$(timeout 8 bash -c '
+    candump -n 1 vcan0 &
+    DUMP_PID=$!
+    sleep 1
+    ros2 topic pub --once /anchor/to_vic/relay astra_msgs/msg/VicCAN "{mcu_name: \"core\", command_id: 30, data: [1, 2, 3, 4]}" >/dev/null 2>&1
+    sleep 0.5
+    ros2 topic pub --once /anchor/to_vic/relay astra_msgs/msg/VicCAN "{mcu_name: \"core\", command_id: 30, data: [1, 2, 3, 4]}" >/dev/null 2>&1
+    wait $DUMP_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -qi "19E"; then
+    pass "CAN connector: relay -> CAN bus"
+  else
+    fail "CAN connector: relay -> CAN bus (got: $output)"
+  fi
+
+  # test: CAN -> from_vic/core
+  log "testing CAN bus -> from_vic/core"
+
+  output=$(timeout 5 bash -c '
+    ros2 topic echo --once /anchor/from_vic/core &
+    ECHO_PID=$!
+    sleep 1
+    cansend vcan0 18F#000A0014001E0028
+    sleep 0.5
+    cansend vcan0 18F#000A0014001E0028
+    wait $ECHO_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -q "mcu_name: core" && echo "$output" | grep -q "command_id: 15"; then
+    pass "CAN connector: CAN -> from_vic/core"
+  else
+    fail "CAN connector: CAN -> from_vic/core"
+  fi
+
+  # test: CAN -> from_vic/arm
+  log "testing CAN bus -> from_vic/arm"
+
+  output=$(timeout 5 bash -c '
+    ros2 topic echo --once /anchor/from_vic/arm &
+    ECHO_PID=$!
+    sleep 1
+    cansend vcan0 294#00640096012C01F4
+    sleep 0.5
+    cansend vcan0 294#00640096012C01F4
+    wait $ECHO_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -q "mcu_name: arm" && echo "$output" | grep -q "command_id: 20"; then
+    pass "CAN connector: CAN -> from_vic/arm"
+  else
+    fail "CAN connector: CAN -> from_vic/arm"
+  fi
+
+  # test: CAN double data type (data_type_key=0)
+  log "testing CAN double data type"
+
+  output=$(timeout 8 bash -c '
+    ros2 topic echo --once /anchor/from_vic/core &
+    ECHO_PID=$!
+    sleep 1
+    cansend vcan0 105#3FF0000000000000
+    sleep 0.5
+    cansend vcan0 105#3FF0000000000000
+    sleep 0.5
+    cansend vcan0 105#3FF0000000000000
+    wait $ECHO_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -q "mcu_name: core" && echo "$output" | grep -q "command_id: 5"; then
+    pass "CAN connector: double data type"
+  else
+    fail "CAN connector: double data type"
+  fi
+
+  # test: CAN float32x2 data type (data_type_key=1)
+  log "testing CAN float32x2 data type"
+
+  output=$(timeout 8 bash -c '
+    ros2 topic echo --once /anchor/from_vic/core &
+    ECHO_PID=$!
+    sleep 1
+    cansend vcan0 14A#3F80000040000000
+    sleep 0.5
+    cansend vcan0 14A#3F80000040000000
+    sleep 0.5
+    cansend vcan0 14A#3F80000040000000
+    wait $ECHO_PID
+  ' 2>/dev/null) || true
+
+  if echo "$output" | grep -q "mcu_name: core" && echo "$output" | grep -q "command_id: 10"; then
+    pass "CAN connector: float32x2 data type"
+  else
+    fail "CAN connector: float32x2 data type"
+  fi
+
+  kill -INT -- -"$ANCHOR_PID" 2>/dev/null || true
+  wait "$ANCHOR_PID" 2>/dev/null || true
+  ANCHOR_PID=""
+}
+
+check_prerequisites() {
+  log "checking prerequisites"
+  local missing=0
+
+  if [[ ! -f install/setup.bash ]]; then
+    fail "install/setup.bash not found; run 'colcon build --symlink-install' first"
+    missing=1
+  fi
+
+  if ! command -v socat &>/dev/null; then
+    fail "socat not found; install it or use 'nix develop'"
+    missing=1
+  fi
+
+  if ! command -v cansend &>/dev/null || ! command -v candump &>/dev/null; then
+    fail "can-utils (cansend/candump) not found; install it or use 'nix develop'"
+    missing=1
+  fi
+
+  if ! ip link show vcan0 &>/dev/null; then
+    fail "vcan0 interface not found"
+    log "  create it with:"
+    log "    sudo ip link add dev vcan0 type vcan"
+    log "    sudo ip link set vcan0 up"
+    missing=1
+  elif ! ip link show vcan0 | grep -q ",UP"; then
+    fail "vcan0 exists but is not UP"
+    log "  enable it with: sudo ip link set vcan0 up"
+    missing=1
+  fi
+
+  if [[ $missing -eq 1 ]]; then
+    echo ""
+    log "prerequisites not met"
+    exit 1
+  fi
+
+  log "all prerequisites met"
+}
+
+main() {
+  echo ""
+  log "anchor connector test suite"
+  echo ""
+
+  check_prerequisites
+
+  log "sourcing ROS2 workspace"
+  source_ros2
+
+  test_mock_connector
+  test_serial_connector
+  test_can_connector
+
+  echo ""
+  log "test summary"
+  echo -e "${BOLD}${GREEN}passed:${NC} $TESTS_PASSED"
+  echo -e "${BOLD}${RED}failed:${NC} $TESTS_FAILED"
+  echo ""
+
+  if [[ $TESTS_FAILED -gt 0 ]]; then
+    exit 1
+  fi
+  exit 0
+}
+
+main "$@"

src/anchor_pkg/anchor_pkg/anchor_node.py

@@ -1,11 +1,9 @@
 from warnings import deprecated
 import rclpy
 from rclpy.node import Node
-from rclpy.executors import ExternalShutdownException
+from rclpy.executors import ExternalShutdownException, SingleThreadedExecutor
 from rcl_interfaces.msg import ParameterDescriptor, ParameterType
 
-import atexit
-
 from .connector import (
     Connector,
     MockConnector,
@@ -14,8 +12,7 @@ from .connector import (
     NoValidDeviceException,
     NoWorkingDeviceException,
 )
-from .convert import string_to_viccan
-import threading
+from .convert import string_to_viccan, viccan_to_string
 
 from astra_msgs.msg import VicCAN
 from std_msgs.msg import String
@@ -37,7 +34,7 @@ class Anchor(Node):
 
     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 VicCAN messages 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
@@ -154,7 +151,7 @@ class Anchor(Node):
         )
         # Debug publisher
         self.tovic_debug_pub_ = self.create_publisher(
-            VicCAN,
+            String,
             "/anchor/to_vic/debug",
             20,
         )
@@ -173,7 +170,7 @@ class Anchor(Node):
             20,
         )
         self.mock_mcu_sub_ = self.create_subscription(
-            String,
+            VicCAN,
             "/anchor/from_vic/mock_mcu",
             self.relay_fromvic,
             20,
@@ -181,15 +178,17 @@ class Anchor(Node):
         self.tovic_string_sub_ = self.create_subscription(
             String,
             "/anchor/to_vic/relay_string",
-            self.connector.write_raw,
+            self.write_connector_raw,
             20,
         )
 
-        # Close devices on exit
-        atexit.register(self.cleanup)
+        # poll at 100Hz for incoming data
+        self.read_timer_ = self.create_timer(0.01, self.read_connector)
 
-    def cleanup(self):
+    def destroy_node(self):
+        self.get_logger().info("closing connector")
         self.connector.cleanup()
+        super().destroy_node()
 
     def read_connector(self):
         """Check the connector for new data from the MCU, and publish string to appropriate topics"""
@@ -204,6 +203,11 @@ class Anchor(Node):
     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(String(data=viccan_to_string(msg)))
+
+    def write_connector_raw(self, msg: String):
+        """Write raw string to the connector and send a copy to /anchor/to_vic/debug"""
+        self.connector.write_raw(msg)
         self.tovic_debug_pub_.publish(msg)
 
     @deprecated(
@@ -226,25 +230,26 @@ class Anchor(Node):
         """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":
+        if 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":
+        if 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()
+    executor = SingleThreadedExecutor()
+    executor.add_node(anchor_node)
 
-        thread = threading.Thread(target=rclpy.spin, args=(anchor_node,), daemon=True)
-        thread.start()
-
-        rate = anchor_node.create_rate(100)  # 100 Hz -- arbitrary rate
-        while rclpy.ok():
-            anchor_node.read_connector()  # Check the connector for updates
-            rate.sleep()
+    try:
+        executor.spin()
     except (KeyboardInterrupt, ExternalShutdownException):
-        print("Caught shutdown signal, shutting down...")
+        pass
     finally:
+        # don't accept any more jobs
+        executor.shutdown()
+        # make the node quit processing things
+        anchor_node.destroy_node()
+        # shut down everything else
         rclpy.try_shutdown()

src/anchor_pkg/anchor_pkg/connector.py

@@ -1,5 +1,8 @@
 from abc import ABC, abstractmethod
+from time import monotonic
+from typing import TYPE_CHECKING
 from astra_msgs.msg import VicCAN
+from std_msgs.msg import String
 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
@@ -19,8 +22,11 @@ KNOWN_USBS = [
     (0x10C4, 0xEA60),  # DOIT ESP32 Devkit V1
     (0x1A86, 0x55D3),  # ESP32 S3 Development Board
 ]
+
 BAUD_RATE = 115200
 
+SERIAL_READ_TIMEOUT = 0.5  # seconds
+
 MCU_IDS = [
     "broadcast",
     "core",
@@ -77,7 +83,7 @@ class Connector(ABC):
         pass
 
     @abstractmethod
-    def write_raw(self, msg: str):
+    def write_raw(self, msg: String):
         pass
 
     def cleanup(self):
@@ -95,6 +101,10 @@ class SerialConnector(Connector):
         ports = self._find_ports()
         mcu_name: str | None = None
 
+        # Serial buffering
+        self._serial_buffer: bytes = b""
+        self._last_read_time = monotonic()
+
         if serial_override:
             logger.warn(
                 f"using serial_override: `{serial_override}`! this will bypass several checks."
@@ -122,7 +132,7 @@ class SerialConnector(Connector):
         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)
+        self.serial_interface = serial.Serial(self.port, BAUD_RATE, timeout=0)
 
     def _find_ports(self) -> list[str]:
         """
@@ -181,9 +191,66 @@ class SerialConnector(Connector):
 
         return None
 
+    def _try_readline(self) -> str | None:
+        """Attempts to read a full string from the MCU without blocking.
+
+        When pyserial is used with 'timeout=0', reads are performed non-blocking.
+        When used with interface.readline(), this breaks the assumption that a returned
+        string will be a completed attempt by the MCU to send a string; it may be
+        cut off between the start of the string and the newline, removing information
+        and rendering the string(s) useless; thus, to get around the downside of readline()
+        not waiting for a newline while still not blocking, this function manually
+        implements a serial input buffer and newline timeout.
+
+        If readline() returns a non-empty string, send it if it ends with a newline
+        (readline() will not read past any newline); otherwise, save the read string.
+        This buffered string should be pre-pended to the next readline() result.
+
+        If readline() does not receive a non-empty string after the last non-newline-
+        terminated readline() result within the manual timeout, send the contents of the
+        buffer as if it ended with a newline, and clear the buffer.
+
+        Returns:
+            str: A hopefully-complete string read from the MCU via the serial interface.
+        """
+        if TYPE_CHECKING:
+            assert type(self.serial_interface) == serial.Serial
+
+        # Warn on buffer timeout, as the only scenarios that would trigger this are
+        # a microcontroller output that isn't newline-terminated (bad), or the MCU is
+        # hanging (also bad).
+        if (
+            self._serial_buffer
+            and (monotonic() - self._last_read_time) > SERIAL_READ_TIMEOUT
+        ):
+            self.logger.warn(
+                f"Serial buffer timeout, last received '{self._serial_buffer}'."
+            )
+            result = self._serial_buffer
+            self._serial_buffer = b""
+            self._last_read_time = monotonic()
+            return str(result, "utf8").strip()
+
+        # No try-except here so caller catches it instead.
+        raw = self.serial_interface.readline()
+
+        # Empty or whitespace-only string
+        if not raw or not raw.strip():
+            return None
+
+        # Add to buffer or send finished buffer
+        if not (raw.endswith(b"\n") or raw.endswith(b"\r")):  # unfinished string
+            self._serial_buffer += raw
+            self._last_read_time = monotonic()
+            return None
+        else:
+            result = self._serial_buffer + raw
+            self._serial_buffer = b""
+            return str(result, "utf8").strip()
+
     def read(self) -> tuple[VicCAN | None, str | None]:
         try:
-            raw = str(self.serial_interface.readline(), "utf8")
+            raw = self._try_readline()
 
             if not raw:
                 return (None, None)
@@ -199,10 +266,10 @@ class SerialConnector(Connector):
             return (None, None)  # pretty much no other error matters
 
     def write(self, msg: VicCAN):
-        self.write_raw(viccan_to_string(msg))
+        self.write_raw(String(data=viccan_to_string(msg)))
 
-    def write_raw(self, msg: str):
-        self.serial_interface.write(bytes(msg, "utf8"))
+    def write_raw(self, msg: String):
+        self.serial_interface.write(bytes(msg.data, "utf8"))
 
     def cleanup(self):
         self.logger.info(f"closing serial port if open {self.port}")
@@ -411,8 +478,10 @@ class CANConnector(Connector):
             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 write_raw(self, msg: String):
+        self.logger.warn(
+            f"write_raw is not supported for CANConnector. msg: {msg.data}"
+        )
 
     def cleanup(self):
         try:
@@ -434,5 +503,5 @@ class MockConnector(Connector):
     def write(self, msg: VicCAN):
         pass
 
-    def write_raw(self, msg: str):
+    def write_raw(self, msg: String):
         pass

src/anchor_pkg/launch/rover.launch.py

@@ -1,10 +1,8 @@
 from launch import LaunchDescription
-from launch.actions import DeclareLaunchArgument, Shutdown, IncludeLaunchDescription
+from launch.actions import DeclareLaunchArgument, Shutdown
 from launch.conditions import IfCondition
-from launch.substitutions import LaunchConfiguration, PathJoinSubstitution
+from launch.substitutions import LaunchConfiguration
 from launch_ros.actions import Node
-from launch_ros.substitutions import FindPackageShare
-from launch.launch_description_sources import PythonLaunchDescriptionSource
 
 
 def generate_launch_description():
@@ -48,24 +46,50 @@ def generate_launch_description():
         )
     )
 
-    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="arm_pkg",
+            executable="arm",
+            name="arm",
+            output="both",
+            parameters=[{"launch_mode": "anchor"}],
+            on_exit=Shutdown(),
+        )
+    )
+
+    ld.add_action(
+        Node(
+            package="core_pkg",
+            executable="core",
+            name="core",
+            output="both",
+            parameters=[{"launch_mode": "anchor"}],
+            on_exit=Shutdown(),
+        )
+    )
+
+    ld.add_action(
+        Node(
+            package="core_pkg",
+            executable="ptz",
+            name="ptz",
+            output="both",
+            condition=IfCondition(use_ptz),
+        )
+    )
+
+    ld.add_action(
+        Node(
+            package="bio_pkg",
+            executable="bio",
+            name="bio",
+            output="both",
+            parameters=[{"launch_mode": "anchor"}],
+            on_exit=Shutdown(),
+        )
+    )
+
     ld.add_action(
         Node(
             package="anchor_pkg",
@@ -84,91 +108,4 @@ def generate_launch_description():
         )
     )
 
-    ld.add_action(
-        Node(
-            package="arm_pkg",
-            executable="arm",
-            name="arm",
-            output="both",
-            parameters=[{"launch_mode": "anchor"}],
-            on_exit=Shutdown(),
-        )
-    )
-
-    ld.add_action(
-        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=[
-                {"launch_mode": "anchor"},
-                {
-                    "use_ros2_control": LaunchConfiguration(
-                        "use_ros2_control", default=False
-                    )
-                },
-                {
-                    "rover_platform": LaunchConfiguration(
-                        "rover_platform", default="auto"
-                    )
-                },
-            ],
-            on_exit=Shutdown(),
-        )
-    )
-
-    ld.add_action(
-        Node(
-            package="core_pkg",
-            executable="ptz",
-            name="ptz",
-            output="both",
-            condition=IfCondition(use_ptz),
-        )
-    )
-
-    ld.add_action(
-        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 +3,14 @@
 <package format="3">
   <name>anchor_pkg</name>
   <version>0.0.0</version>
-  <description>ASTRA VicCAN driver package, using python-can and pyserial.</description>
+  <description>Anchor -- ROS and CAN relay node</description>
   <maintainer email="rjm0037@uah.edu">Riley</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
-  <exec_depend>common_interfaces</exec_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>
+  <depend>common_interfaces</depend>
+  <depend>python3-serial</depend>
+  <depend>python3-can</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.",
-    license="AGPL-3.0-only",
+    description="Anchor node used to run all modules through a single modules MCU/Computer. Commands to all modules will be relayed through CAN",
+    license="All Rights Reserved",
     entry_points={
         "console_scripts": ["anchor = anchor_pkg.anchor_node:main"],
     },

src/arm_pkg/arm_pkg/arm_node.py

@@ -1,4 +1,5 @@
 import sys
+import threading
 import signal
 import math
 from warnings import deprecated
@@ -12,7 +13,7 @@ from std_msgs.msg import String, Header
 from sensor_msgs.msg import JointState
 from control_msgs.msg import JointJog
 from astra_msgs.msg import SocketFeedback, DigitFeedback, ArmManual  # TODO: Old topics
-from astra_msgs.msg import ArmFeedback, ArmCtrlState, VicCAN, RevMotorState
+from astra_msgs.msg import ArmFeedback, VicCAN, RevMotorState
 
 control_qos = qos.QoSProfile(
     history=qos.QoSHistoryPolicy.KEEP_LAST,
@@ -25,6 +26,8 @@ control_qos = qos.QoSProfile(
     # liveliness_lease_duration=Duration(seconds=5),
 )
 
+thread = None
+
 
 class ArmNode(Node):
     """Relay between Anchor and Basestation/Headless/Moveit2 for Arm related topics."""
@@ -78,9 +81,7 @@ class ArmNode(Node):
             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
-            )
+            self.anchor_pub = self.create_publisher(String, "/anchor/relay", 10)
 
             # Create publishers
             self.socket_pub = self.create_publisher(
@@ -114,10 +115,10 @@ class ArmNode(Node):
 
         # Control
 
-        # Manual: /arm/control/joint_jog is published by Basestation or Headless
+        # Manual: /arm/manual/joint_jog is published by Basestation or Headless
         self.man_jointjog_sub_ = self.create_subscription(
             JointJog,
-            "/arm/control/joint_jog",
+            "/arm/manual/joint_jog",
             self.jointjog_callback,
             qos_profile=control_qos,
         )
@@ -128,13 +129,6 @@ class ArmNode(Node):
             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
 
@@ -154,14 +148,9 @@ class ArmNode(Node):
 
         # 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)
@@ -184,54 +173,10 @@ class ArmNode(Node):
         # Deadzone
         velocities = [vel if abs(vel) > 0.05 else 0.0 for vel in velocities]
 
-        self.anchor_tovic_pub_.publish(
-            VicCAN(
-                mcu_name="arm",
-                command_id=39,
-                data=velocities[0:4],
-                header=msg.header,
-            )
-        )
-
-        self.anchor_tovic_pub_.publish(
-            VicCAN(
-                mcu_name="digit",
-                command_id=39,
-                data=velocities[4:6],
-                header=msg.header,
-            )
-        )
-
-        self.anchor_tovic_pub_.publish(
-            VicCAN(
-                mcu_name="digit",
-                command_id=26,
-                data=[velocities[6]],
-                header=msg.header,
-            )
-        )
+        self.send_velocities(velocities, msg.header)
 
         # TODO: use msg.duration
 
-    def man_state_callback(self, msg: ArmCtrlState):
-        self.anchor_tovic_pub_.publish(
-            VicCAN(
-                mcu_name="arm",
-                command_id=18,
-                data=[1.0 if msg.brake_mode else 0.0],
-                header=Header(stamp=self.get_clock().now().to_msg()),
-            )
-        )
-
-        self.anchor_tovic_pub_.publish(
-            VicCAN(
-                mcu_name="arm",
-                command_id=34,
-                data=[1.0 if msg.laser else 0.0],
-                header=Header(stamp=self.get_clock().now().to_msg()),
-            )
-        )
-
     def joint_command_callback(self, msg: JointState):
         if len(msg.position) < 7 and len(msg.velocity) < 7:
             self.get_logger().debug("Ignoring malformed /joint_command message.")
@@ -257,12 +202,12 @@ class ArmNode(Node):
 
         # Send Axis 0-3
         self.anchor_tovic_pub_.publish(
-            VicCAN(mcu_name="arm", command_id=43, data=velocities[0:4], header=header)
+            VicCAN(mcu_name="arm", command_id=43, data=velocities[0:3], 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)
+            VicCAN(mcu_name="digit", command_id=43, data=velocities[4:5], header=header)
         )
         # Send End Effector Gripper
         # TODO: Verify m/s received correctly by embedded
@@ -345,8 +290,6 @@ class ArmNode(Node):
                 )
                 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])
@@ -433,14 +376,11 @@ class ArmNode(Node):
                 )
                 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]

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>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <description>Core arm package which handles ROS2 commnuication.</description>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
-  <exec_depend>common_interfaces</exec_depend>
-  <exec_depend>python3-numpy</exec_depend>
-  <exec_depend>astra_msgs</exec_depend>
+  <depend>common_interfaces</depend>
+  <depend>python3-numpy</depend>
+  <depend>astra_msgs</depend>
 
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>

src/arm_pkg/setup.py

@@ -12,9 +12,9 @@ setup(
     ],
     install_requires=["setuptools"],
     zip_safe=True,
-    maintainer="David Sharpe",
+    maintainer="David",
     maintainer_email="ds0196@uah.edu",
-    description="Relays topics related to Arm between VicCAN (through Anchor) and basestation.",
+    description="Relays topics related to the arm between VicCAN (through Anchor) and basestation.",
     license="AGPL-3.0-only",
     entry_points={
         "console_scripts": ["arm = arm_pkg.arm_node: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>
-  <description>Biosensor package to handle command interpretation and embedded interfacing.</description>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
-  <exec_depend>common_interfaces</exec_depend>
-
-  <exec_depend>astra_msgs</exec_depend>
+  <depend>common_interfaces</depend>
+  <depend>astra_msgs</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.",
-    license="AGPL-3.0-only",
+    description="TODO: Package description",
+    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
@@ -19,14 +23,12 @@ 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
-
-# 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
+CORE_GEAR_RATIO = 100.0  # Clucky: 100:1, Testbed: 64:1
 
 control_qos = qos.QoSProfile(
     history=qos.QoSHistoryPolicy.KEEP_LAST,
@@ -39,10 +41,6 @@ control_qos = qos.QoSProfile(
     # liveliness_lease_duration=Duration(seconds=5),
 )
 
-
-class CoreNode(Node):
-    """Relay between Anchor and Basestation/Headless/Moveit2 for Core related topics."""
-
 # 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 = {
@@ -56,70 +54,23 @@ class CoreNode(Node):
     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
-
-        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
+        # 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:
-            # Joint state control for topic-based controller
-            self.joint_command_sub_ = self.create_subscription(
-                JointState, "/core/joint_commands", self.joint_command_callback, 2
+        # autonomy twist -- m/s and rad/s -- for autonomy, in particular Nav2
+        self.cmd_vel_sub_ = self.create_subscription(
+            TwistStamped, "/cmd_vel", self.cmd_vel_callback, 1
         )
-        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
-        # TODO: change topic to something like '/core/feedback/main'
+        # Consolidated and organized core feedback
         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
-
-        # IMU
+        self.telemetry_pub_timer = self.create_timer(
+            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
+        # GPS (embedded u-blox M9N)
+        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
+        # Barometer (embedded BMP-388)
+        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):
-        # So... topic based control node publishes JointState messages over /joint_commands
-        #  with len(msg.name) == 5 and len(msg.velocity) == 4... all 5 non-fixed joints
-        #  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
+    def cmd_vel_callback(self, msg: TwistStamped):
+        linear = msg.twist.linear.x
+        angular = -msg.twist.angular.z
 
-        (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
-        br_rpm = radps_to_rpm(br_vel) * self.gear_ratio
-        fl_rpm = radps_to_rpm(fl_vel) * self.gear_ratio
-        fr_rpm = radps_to_rpm(fr_vel) * self.gear_ratio
+        vel_left_rpm = round((vel_left_rads * 60) / (2 * 3.14159)) * CORE_GEAR_RATIO
+        vel_right_rpm = round((vel_right_rads * 60) / (2 * 3.14159)) * CORE_GEAR_RATIO
 
-        self.send_viccan(
-            20, [fl_rpm, bl_rpm, fr_rpm, br_rpm]
-        )  # order expected by embedded
+        self.send_viccan(20, [vel_left_rpm, vel_right_rpm])
 
     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:
-            expected_len = self.viccan_msg_len_dict[msg.command_id]
+        if msg.command_id in viccan_msg_len_dict:
+            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
-    signal.signal(signal.SIGTERM, exit_handler)
+    global serial_pub
 
-    core_node = CoreNode()
-
-    try:
-        rclpy.spin(core_node)
-    except (KeyboardInterrupt, ExternalShutdownException):
-        pass
-    finally:
-        rclpy.try_shutdown()
+    serial_pub = SerialRelay()
+    serial_pub.run()
 
 
 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/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>
-  <maintainer email="ds0196@uah.edu">David Sharpe</maintainer>
+  <description>Core rover control package to handle command interpretation and embedded interfacing.</description>
+  <maintainer email="tristanmcginnis26@gmail.com">tristan</maintainer>
   <license>AGPL-3.0-only</license>
 
   <depend>rclpy</depend>
-
-  <exec_depend>common_interfaces</exec_depend>
-  <exec_depend>python3-scipy</exec_depend>
-  <exec_depend>python-crccheck-pip</exec_depend>
-
-  <exec_depend>astra_msgs</exec_depend>
+  <depend>common_interfaces</depend>
+  <depend>python3-scipy</depend>
+  <depend>python-crccheck-pip</depend>
+  <depend>astra_msgs</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_email="ds0196@uah.edu",
-    description="Relays topics related to Core between VicCAN (through Anchor) and basestation.",
-    license="AGPL-3.0-only",
+    maintainer="tristan",
+    maintainer_email="tristanmcginnis26@gmail.com",
+    description="Core rover control package to handle command interpretation and embedded interfacing.",
+    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>
-
-  <exec_depend>common_interfaces</exec_depend>
-  <exec_depend>python3-pygame</exec_depend>
-  <exec_depend>astra_msgs</exec_depend>
+  <depend>common_interfaces</depend>
+  <depend>python3-pygame</depend>
+  <depend>astra_msgs</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.",
-    license="AGPL-3.0-only",
+    description="Headless rover control package to handle command interpretation and embedded interfacing.",
+    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

@@ -18,7 +18,7 @@ from std_msgs.msg import Header
 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
 
@@ -138,11 +138,6 @@ class Headless(Node):
             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
 
@@ -150,6 +145,7 @@ class Headless(Node):
         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 = (
@@ -159,13 +155,6 @@ class Headless(Node):
         )
 
         # 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)
@@ -177,8 +166,6 @@ class Headless(Node):
         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
@@ -197,18 +184,12 @@ class Headless(Node):
             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(
-                JointJog, "/arm/control/joint_jog", qos_profile=control_qos
-            )
-            self.arm_state_pub_ = self.create_publisher(
-                ArmCtrlState, "/arm/control/state", qos_profile=control_qos
+                JointJog, "/arm/manual_new", qos_profile=control_qos
             )
 
             self.arm_ik_twist_publisher = self.create_publisher(
@@ -250,17 +231,11 @@ class Headless(Node):
         # 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
-        self.get_logger().info("Defaulting to Core mode. Ready.")
-
     def stop_all(self):
         if self.use_old_topics:
             self.core_publisher.publish(CORE_STOP_MSG)
             self.arm_publisher.publish(ARM_STOP_MSG)
             self.bio_publisher.publish(BIO_STOP_MSG)
-        else:
-            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:
@@ -357,28 +332,18 @@ class Headless(Node):
             self.core_publisher.publish(input)
 
         else:  # New topics
-            twist = Twist()
+            input = Twist()
 
             # Forward/back and Turn
-            twist.linear.x = -1.0 * left_stick_y
-            twist.angular.z = -1.0 * copysign(
+            input.linear.x = -1.0 * left_stick_y
+            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:
-                header = Header(stamp=self.get_clock().now().to_msg())
-                self.core_cmd_vel_pub_.publish(TwistStamped(header=header, twist=twist))
-            else:
-                self.core_twist_pub_.publish(twist)
-            self.get_logger().debug(
-                f"[Core Ctrl] Linear: {round(twist.linear.x, 2)}, Angular: {round(twist.angular.z, 2)}"
+            self.core_twist_pub_.publish(input)
+            self.get_logger().info(
+                f"[Core Ctrl] Linear: {round(input.linear.x, 2)}, Angular: {round(input.angular.z, 2)}"
             )
 
             # Brake mode
@@ -587,26 +552,13 @@ class Headless(Node):
             )
 
             # A: brake
-            new_brake_mode = button_a
+            # TODO: Brake mode
 
-            # X: laser
-            new_laser = button_x
+            # Y: linear actuator
+            # TODO: linear actuator
 
             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)
         # =============
 
@@ -691,11 +643,6 @@ class Headless(Node):
         else:
             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()),

treefmt.nix

@@ -1,8 +1,9 @@
-{ pkgs, ... }:
+{ ... }:
 {
   projectRootFile = "flake.nix";
   programs = {
     nixfmt.enable = true;
     black.enable = true;
+    shfmt.enable = true;
   };
 }