Sebastien Vayrette 6ea6e0ccd1 feat(uwb): add MPU6050 IMU + fall detection to tag, IMU forwarding in anchor + ROS2 node
- Tag: MPU6050 on shared I2C bus (SDA=4, SCL=5, addr 0x68)
- Accel ±8g, gyro ±500dps, read at 50Hz
- Fall detection: freefall+impact or sudden >3.5g
- Fall triggers auto e-stop (ESP-NOW broadcast)
- OLED shows tilt bar + accel magnitude
- New ESP-NOW packet types: MSG_IMU (0x40), MSG_FALL (0x50)
- IMU broadcast at 10Hz via ESP-NOW
- Anchor forwards +IMU: and +FALL: lines to Jetson serial
- ROS2 uwb_driver publishes sensor_msgs/Imu on /uwb/imu
- .gitignore for .pio build dirs
2026-03-14 14:09:39 -04:00

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