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feat(webui): motor current live graph (#297) #306

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sl-jetson merged 3 commits from sl-webui/issue-297-motor-graph into main 2026-03-02 21:35:57 -05:00
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sl-jetson commented 2026-03-02 21:35:52 -05:00
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sl-jetson added 3 commits 2026-03-02 21:35:53 -05:00 
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:
  * Left motor current (cyan) in Amps
  * Right motor current (amber) in Amps
- Canvas-based rendering for performance
- Thermal warning threshold line (25A, configurable):
  * Dashed red line overlay on chart
  * Configurable threshold constant for motor specs
  * Auto-detects thermal warnings when threshold exceeded
- Real-time statistics display:
  * Current draw for left and right motors (real-time)
  * 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 with icon
  * Left/right motor temperature monitoring
- Grid overlay, axis labels, time labels, legend
- Takes absolute value of currents (handles reverse direction)

Integrated into TELEMETRY tab group as 'Motor Current' tab.
Follows established canvas rendering patterns from BatteryChart.

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>
sl-jetson merged commit 4c751e576b into main 2026-03-02 21:35:57 -05:00
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Reference: seb/saltylab-firmware#306
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