ESP32 Ambilight Debug (node_main)

Sensor Order (fixed 1..8)

GyverHub shows sensors in this order:

1. Bottom
2. Bottom Left
3. Left
4. Top Left
5. Top
6. Top Right
7. Right
8. Bottom Right

In UI they are placed around a TV-like 3x3 layout:

• top: 4 TL | 5 T | 6 TR
• middle: 3 L | TV | 7 R
• bottom: 2 BL | 1 B | 8 BR

TCA9548A Channel Mapping

Mapping is explicit in src/node_main/main.cpp via:

constexpr uint8_t kTcaChannelBySensor[sensor_ring::kSensorCount] = {0, 1, 2, 3, 4, 5, 6, 7};

Array index is sensor index (0..7 => 1..8 in UI), value is TCA channel.

GyverHub Check

1. Flash esp32_main firmware.
2. Open GyverHub device TCS34725 x8.
3. Verify 8 colored tiles update live in the layout above.
4. Disconnect one sensor and verify its widget turns black and Status line shows this sensor as failed.