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772a70b545
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feat: Nav2 path planning + obstacle avoidance (Phase 2b)
Integrates Nav2 autonomous navigation stack with RTAB-Map SLAM on Orin
Nano Super. No AMCL/map_server needed — RTAB-Map provides /map + TF.
New files:
- jetson/config/nav2_params.yaml DWB controller,
NavFn planner, RPLIDAR obstacle layer, RealSense voxel layer;
10Hz local / 5Hz global costmap; robot_radius 0.15m, max_vel 1.0 m/s
- jetson/ros2_ws/src/saltybot_bringup/launch/nav2.launch.py
wraps nav2_bringup navigation_launch with saltybot params + BT XML
- jetson/ros2_ws/src/saltybot_bringup/behavior_trees/
navigate_to_pose_with_recovery.xml BT: replan@1Hz, DWB follow,
recovery: clear maps → spin 90° → wait 5s → back up 0.30m
Updated:
- jetson/docker-compose.yml add saltybot-nav2 service
(depends_on: saltybot-ros2)
- jetson/ros2_ws/src/saltybot_bringup/setup.py install behavior_trees/*.xml
- jetson/ros2_ws/src/saltybot_bringup/package.xml add rtabmap_ros + nav2_bringup
- projects/saltybot/SLAM-SETUP-PLAN.md Phase 2b ✅ Done
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-02-28 22:54:24 -05:00 |
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a50f22d56b
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feat: Nav2 cmd_vel to STM32 autonomous drive bridge
Adds cmd_vel_bridge_node — a standalone ROS2 node that subscribes to
Nav2 /cmd_vel and drives the STM32 over USB CDC with:
- Hard velocity limits (max_linear_vel=0.5 m/s, max_angular_vel=2.0 rad/s)
- Smooth ESC ramp (500 ESC-units/s, 50 Hz control loop)
- Deadman switch: zeros targets if /cmd_vel silent >500 ms
- Mode gate: sends drive only when STM32 reports md=2 (AUTONOMOUS)
- Telemetry RX → /saltybot/imu, /saltybot/balance_state, /diagnostics
- Heartbeat TX every 200 ms (H\n)
Deliverables:
saltybot_bridge/cmd_vel_bridge_node.py — node implementation
config/cmd_vel_bridge_params.yaml — tunable parameters
launch/cmd_vel_bridge.launch.py — standalone launch file
test/test_cmd_vel_bridge.py — 37 pytest unit tests (no ROS2)
setup.py — register node + new data files
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-02-28 22:50:15 -05:00 |
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c5d6a72d39
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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>
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2026-02-28 21:46:27 -05:00 |
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22aaeb02cf
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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>
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2026-02-28 21:07:15 -05:00 |
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a89297f1d4
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Merge pull request 'feat(bd-a2j): Sensor driver integration — RealSense D435i + RPLIDAR A1M8' (#17) from sl-perception/bd-a2j-sensor-drivers into main
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2026-02-28 17:19:41 -05:00 |
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76067d6d89
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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>
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2026-02-28 17:14:21 -05:00 |
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7c4e46aaa1
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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>
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2026-02-28 17:11:02 -05:00 |
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c47ac41573
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feat: Jetson Nano platform setup and Docker env (bd-1hcg)
- Dockerfile: L4T R32.6.1 (JetPack 4.6) base + ROS2 Humble + SLAM stack
(slam_toolbox, Nav2, rplidar_ros, realsense2_camera, robot_localization)
- docker-compose.yml: multi-service stack (ROS2, RPLIDAR A1M8, D435i, STM32 bridge)
with device passthrough, host networking for DDS, persistent map volume
- docs/pinout.md: full GPIO/I2C/UART pinout for STM32F722 bridge (USB CDC +
UART fallback), RealSense D435i (USB3), RPLIDAR A1M8, udev rules
- docs/power-budget.md: 10W envelope analysis with per-component breakdown,
mitigation strategies (RPLIDAR gating, D435i 640p, nvpmodel modes)
- scripts/setup-jetson.sh: host one-shot setup (Docker, nvidia-container-runtime,
udev rules, MAXN power mode, swap)
- scripts/build-and-run.sh: build/up/down/shell/slam/status helper
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-02-28 12:46:14 -05:00 |
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