- Replace safety.c's direct IWDG initialization with watchdog module API
- Use watchdog_init(2000) for ~2s timeout in safety_init()
- Use watchdog_kick() in safety_refresh() to feed the watchdog
- Remove unused watchdog_get_divider() helper function
- Watchdog now configured with automatic prescaler selection
The watchdog module provides a clean, flexible IWDG interface that:
- Automatically calculates prescaler and reload values
- Detects watchdog-triggered resets via watchdog_was_reset_by_watchdog()
- Supports timeout range of ~1ms to ~32 seconds
- Integrates seamlessly with existing safety system
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Real-time motor current visualization with:
- Subscribes to /saltybot/motor_currents for dual-motor current data
- Rolling 60-second history window with automatic data culling
- Dual-axis line chart for left (cyan) and right (amber) motor amps
- Canvas-based rendering for performance
- Thermal warning threshold line (25A, configurable)
- Real-time statistics:
* Current draw for left and right motors
* Peak current tracking over 60-second window
* Average current calculation
* Thermal status indicator with warning badge
- Color-coded thermal alerts:
* Red background when threshold exceeded
* Warning indicator and message
- Grid overlay, axis labels, time labels, legend
- Takes absolute value of currents (handles reverse direction)
Integrated into TELEMETRY tab group as 'Motor Current' tab.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>