|
|
b4bb6a44e0
|
feat: Phase 2a URDF robot description for SLAM and Nav2
Add saltybot_description ROS2 package with full kinematic model:
urdf/saltybot.urdf.xacro
- base_footprint → base_link (axle_height = 0.310m, from AXLE_HEIGHT SCAD)
- wheel_left/right_link (continuous, separation=0.600m, radius=0.1015m)
- imu_link (FC/MPU-6000 at x=+50mm forward, z=+12mm)
- stem_link (visual: 38.1mm EMT, 1.050m — from stem_battery_clamp.scad)
- sensor_head_link at top of stem
- laser (RPLIDAR A1M8, z=COL_H=36mm — frame matches slam_toolbox config)
- camera_link (RealSense D435i, ARM_R=50mm — matches realsense2_camera)
- camera_{front,left,rear,right}_link (IMX219, 10° down tilt, ARM_R=50mm
— positions match camera_tf.launch.py; that file superseded when live)
config/saltybot_properties.yaml
All dimensions from chassis/chassis_frame.scad + ASSEMBLY.md Rev A.
launch/robot_description.launch.py
Compiles xacro at launch time, runs robot_state_publisher.
Publishes /robot_description + /tf_static for all fixed joints.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
2026-02-28 22:57:58 -05:00 |
|
|
|
c5d6a72d39
|
feat: update SLAM stack for Jetson Orin Nano Super (67 TOPS, JetPack 6)
Platform upgrade: Jetson Nano 4GB → Orin Nano Super 8GB (March 1, 2026)
All Nano-era constraints removed — power/rate/resolution limits obsolete.
Dockerfile: l4t-jetpack:r36.2.0 (JetPack 6 / Ubuntu 22.04 / CUDA 12.x),
ROS2 Humble via native apt, added ros-humble-rtabmap-ros,
ros-humble-v4l2-camera for future IMX219 CSI (Phase 2c)
New: slam_rtabmap.launch.py — Orin primary SLAM entry point
RTAB-Map with subscribe_scan (RPLIDAR) + subscribe_rgbd (D435i)
Replaces slam_toolbox as docker-compose default
New: config/rtabmap_params.yaml — Orin-optimized
DetectionRate 10Hz, MaxFeatures 1000, Grid/3D true,
TimeThr 0 (no limit), Mem/STMSize 0 (unlimited)
Updated: config/realsense_d435i.yaml — 848x480x30, pointcloud enabled
Updated: config/slam_toolbox_params.yaml — 10Hz rate, 1s map interval
Updated: SLAM-SETUP-PLAN.md — full rewrite for Orin: arch diagram,
Phase 2c IMX219 plan (4x 160° CSI surround), 25W power budget
docker-compose.yml: image tag jetson-orin, default → slam_rtabmap.launch.py
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
2026-02-28 21:46:27 -05:00 |
|
|
|
22aaeb02cf
|
feat: Jetson→STM32 command protocol — /cmd_vel to serial (Phase 2)
STM32 firmware (C):
- include/jetson_cmd.h: protocol constants (HB_TIMEOUT_MS=500,
SPEED_MAX_DEG=4°), API for jetson_cmd_process/is_active/steer/sp_offset
- src/jetson_cmd.c: main-loop parser for buffered C<spd>,<str> frames;
setpoint offset = speed/1000 * 4°; steer clamped ±1000
- lib/USB_CDC/src/usbd_cdc_if.c: add H (heartbeat) and C (drive cmd) to
CDC_Receive ISR — follows existing pattern: H updates jetson_hb_tick in
ISR, C copied to jetson_cmd_buf for main-loop sscanf (avoids sscanf in IRQ)
- src/main.c: integrate jetson_cmd — process buffered frame, apply setpoint
offset around balance_update(), inject steer into motor_driver_update()
only when heartbeat alive (fallback: steer=0, setpoint unchanged)
ROS2 (Python):
- saltybot_cmd_node.py: full bidirectional node — owns serial port, handles
telemetry RX → topics AND /cmd_vel TX → C<spd>,<str>\n + H\n heartbeat
200ms timer; sends C0,0\n on shutdown; speed/steer_scale configurable
- serial_bridge_node.py: add write_serial() helper for extensibility
- launch/bridge.launch.py: mode arg (bidirectional|rx_only) selects node
- config/bridge_params.yaml: heartbeat_period, speed_scale, steer_scale docs
- test/test_cmd.py: 13 tests — zero, full fwd/rev, turn clamping, combined
- setup.py: saltybot_cmd_node entry point
All 21 tests pass (8 parse + 13 cmd).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
2026-02-28 21:07:15 -05:00 |
|
|
|
a89297f1d4
|
Merge pull request 'feat(bd-a2j): Sensor driver integration — RealSense D435i + RPLIDAR A1M8' (#17) from sl-perception/bd-a2j-sensor-drivers into main
|
2026-02-28 17:19:41 -05:00 |
|
|
|
76067d6d89
|
feat(bd-a2j): RealSense D435i + RPLIDAR A1M8 ROS2 driver integration
Adds saltybot_bringup ROS2 package with four launch files:
- realsense.launch.py — D435i at 640x480x15fps, IMU unified topic
- rplidar.launch.py — RPLIDAR A1M8 via /dev/rplidar udev symlink
- sensors.launch.py — both sensors + static TF (base_link→laser/camera)
- slam.launch.py — sensors + slam_toolbox online_async (compose entry point)
Sensor config YAMLs (mounted at /config/ in container):
- realsense_d435i.yaml — Nano power-budget settings (15fps, no pointcloud)
- rplidar_a1m8.yaml — Standard scan mode, 115200 baud, laser frame
- slam_toolbox_params.yaml — Nano-tuned (2Hz processing, 5cm resolution)
Fixes docker-compose volume mount: ./ros2_ws/src:/ros2_ws/src
(was ./ros2_ws:/ros2_ws/src — would have double-nested the src directory)
Topic reference and verification commands in SENSORS.md.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
2026-02-28 17:14:21 -05:00 |
|
|
|
7c4e46aaa1
|
feat: STM32-to-Jetson ROS2 serial bridge node
saltybot_bridge ROS2 Python package (ament_python):
- serial_bridge_node.py: reads USB CDC JSON telemetry from STM32F722 at 50Hz
Parses exact firmware format: {"p","r","e","ig","m","s","y"} (all ×10 ints)
State enum: 0=DISARMED, 1=ARMED, 2=TILT_FAULT (matched to balance_state_t)
- Publishes sensor_msgs/Imu on /saltybot/imu (pitch/roll/yaw as angular_velocity)
- Publishes std_msgs/String on /saltybot/balance_state (full PID JSON diagnostics)
- Publishes diagnostic_msgs/DiagnosticArray on /diagnostics (OK/WARN/ERROR by state)
- Auto-reconnects on serial disconnect; IMU fault frames → ERROR diagnostic
- launch/bridge.launch.py with serial_port + baud_rate launch args
- config/bridge_params.yaml (921600 baud, /dev/ttyACM0)
- test/test_parse.py: 8 unit tests covering normal, fault, edge cases (all pass)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
|
2026-02-28 17:11:02 -05:00 |
|
