2 Commits

Author SHA1 Message Date
cea3eaff97 cleanup: Remove all Mamba/STM32/BlackPill references — ESP32-S3 only
- Renamed mamba_protocol.py → balance_protocol.py; updated all importers
- can_bridge_node.py rewritten to use balance_protocol.py API (ESP32-S3 BALANCE)
- test_can_bridge.py rewritten to test actual balance_protocol.py constants/functions
- All STM32/Mamba references in Python, YAML, Markdown, shell scripts replaced:
  * Hardware: MAMBA F722S → ESP32-S3 BALANCE/IO
  * Device paths: /dev/stm32-bridge → /dev/esp32-io
  * Node names: stm32_serial_bridge → esp32_io_serial_bridge
  * hardware_id: stm32f722 → esp32s3-balance/esp32s3-io
- C/C++ src/include/lib/test files: added DEPRECATED header comment
- Covers: saltybot_bridge, saltybot_can_bridge, saltybot_can_e2e_test,
  saltybot_bringup, saltybot_diagnostics, saltybot_mode_switch, and all
  chassis, docs, scripts, and project files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-04 08:56:09 -04:00
48e9af60a9 feat: Remove ELRS arm requirement for autonomous operation (Issue #512)
Enable Jetson autonomous arming while keeping RC as optional override.

Key Changes:
=============

1. RC Kill Switch (CH5 OFF) → Emergency Stop (not disarm)
   - Motors cutoff immediately on kill switch
   - Robot remains armed (allows re-arm without re-initializing)
   - Maintains kill switch safety for emergency situations

2. RC Disarm Only on Explicit CH5 Falling Edge (while RC alive)
   - RC disconnect doesn't disarm Jetson-controlled missions
   - RC failsafe timer (500ms) still handles signal loss

3. Jetson Autonomous Arming (via CDC 'A' command)
   - Works independently of RC state
   - Requires: calibrated IMU, robot level (±10°), no estop active
   - Uses same 500ms arm-hold safety as RC

4. All Safety Preserved
   - Arming hold timer: 500ms
   - Tilt limit: ±10° level
   - IMU calibration required
   - Remote E-stop override
   - RC failsafe: 500ms signal loss = disarm
   - Jetson timeout: 500ms heartbeat = zero motors

Command Protocol (CDC):
   A = arm (Jetson)
   D = disarm (Jetson)
   E/Z = estop / clear estop
   H = heartbeat (keep-alive)
   C<spd>,<str> = drive command

Behavior Matrix:
   RC disconnected      → Jetson-armed stays armed, normal operation
   RC connected + armed → Both Jetson and RC can arm, blended control
   RC kill switch (CH5) → Emergency stop + can re-arm via Jetson 'A'
   RC signal lost       → Disarm after 500ms (failsafe)

See AUTONOMOUS_ARMING.md for complete protocol and testing checklist.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-06 11:46:03 -05:00