sl-android
289185e6cf
feat: VESC CAN telemetry MQTT relay (Issue #656 )
...
Add vesc_mqtt_relay_node.py to saltybot_phone: subscribes to
/vesc/left/state, /vesc/right/state, /vesc/combined ROS2 topics and
publishes JSON telemetry to saltybot/phone/vesc_{left,right,combined}
MQTT topics at 5 Hz per motor. 32 unit tests, no ROS2/paho required.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-17 11:33:59 -04:00
sl-android
dd13569413
feat: MQTT-to-ROS2 phone sensor bridge (Issue #601 )
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Add saltybot_phone/mqtt_ros2_bridge_node.py — ROS2 node bridging the three
MQTT topics published by phone/sensor_dashboard.py into typed ROS2 messages:
saltybot/phone/imu → /saltybot/phone/imu sensor_msgs/Imu
saltybot/phone/gps → /saltybot/phone/gps sensor_msgs/NavSatFix
saltybot/phone/battery → /saltybot/phone/battery sensor_msgs/BatteryState
(status) → /saltybot/phone/bridge/status std_msgs/String
Key design:
- paho-mqtt loop_start() runs in dedicated network thread; on_message
enqueues (topic, payload) pairs into a thread-safe queue
- ROS2 timer drains queue at 50 Hz — all publishing stays on executor
thread, avoiding any rclpy threading concerns
- Timestamp alignment: uses ROS2 wall clock by default; opt-in
use_phone_timestamp param uses phone epoch ts when drift < warn_drift_s
- IMU: populates accel + gyro with diagonal covariance; orientation_cov[0]=-1
(unknown per REP-145)
- GPS: NavSatStatus.STATUS_FIX for gps/fused/network providers; full 3×3
position covariance from accuracy_m; COVARIANCE_TYPE_APPROXIMATED
- Battery: pct→percentage [0-1], temp Kelvin, health/status mapped from
Android health strings, voltage/current=NaN (unavailable on Android)
- Input validation: finite value checks on IMU, lat/lon range on GPS,
pct [0-100] on battery; bad messages logged at DEBUG and counted
- Status topic at 0.2 Hz: JSON {mqtt_connected, rx/pub/err counts,
age_s per sensor, queue_depth}
- Auto-reconnect via paho reconnect_delay_set (5 s → 20 s max)
Add launch/mqtt_bridge.launch.py with args: mqtt_host, mqtt_port,
reconnect_delay_s, use_phone_timestamp, warn_drift_s, imu_accel_cov,
imu_gyro_cov.
Register mqtt_ros2_bridge console script in setup.py.
Add python3-paho-mqtt exec_depend to package.xml.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 14:59:02 -04:00
sl-android
08bc23f6df
feat: Phone video streaming bridge (Issue #585 )
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Phone side — phone/video_bridge.py:
- MJPEG streaming server for Android/Termux phone camera
- Dual camera backends: OpenCV VideoCapture (V4L2) with automatic
fallback to termux-camera-photo for unmodified Android
- WebSocket server (ws://0.0.0.0:8765) — binary JPEG frames + JSON
info/error control messages; supports multiple concurrent clients
- HTTP server (http://0.0.0.0:8766 ):
/stream — multipart/x-mixed-replace MJPEG
/snapshot — single JPEG
/health — JSON stats (frame count, dropped, resolution, fps)
- Thread-safe single-slot FrameBuffer; CaptureThread rate-limited with
wall-clock accounting for capture latency
- Flags: --ws-port, --http-port, --width, --height, --fps, --quality,
--device, --camera-id, --no-http, --debug
Jetson side — saltybot_phone/phone_camera_node.py:
- ROS2 node: receives JPEG frames, publishes:
/saltybot/phone/camera sensor_msgs/Image (bgr8)
/saltybot/phone/camera/compressed sensor_msgs/CompressedImage
/saltybot/phone/camera/info std_msgs/String (stream metadata)
- WebSocket client (primary); HTTP MJPEG polling fallback on WS failure
- Auto-reconnect loop (default 3 s) for both transports
- Latency warning when frame age > latency_warn_ms (default 200 ms)
- 10 s diagnostics log: received/published counts + last frame age
- Registered as phone_camera_node console script in setup.py
- Added to phone_bringup.py launch with phone_host / phone_cam_enabled args
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 12:20:28 -04:00
sl-android
df49eec21f
feat: Android/Termux OpenClaw node (Issue #420 )
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Add complete phone node infrastructure:
ROS2 Package (saltybot_phone):
- camera_node: /phone/camera/image_raw (320x240, 15 FPS)
- gps_node: /phone/gps (NavSatFix via termux-api)
- imu_node: /phone/imu (accelerometer data)
- openclaw_chat_node: Local LLM inference
Subscribes /saltybot/speech_text
Publishes /saltybot/chat_response
- ws_bridge: WebSocket bridge to Jetson Orin (:9090)
Phone Scripts:
- termux-bootstrap.sh: Complete Termux setup
- power-management.sh: Battery/thermal monitoring
- README.md: Setup documentation
Architecture:
- Termux on Android phone
- WiFi/USB tether to Jetson Orin
- ROS2 topic bridge for sensors
- Local LLM for on-device chat (Phi-2)
- Termux:Boot auto-start
- Power management for extended runtime
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-05 08:55:47 -05:00
