# ESP32 Pinout (Planned)

GPIO 16  Relay 1 (Starlink)
GPIO 17  Relay 2 (Fridge)

GPIO 4   DS18B20 Bus

GPIO 21  UART TX to Pico over CAT5
GPIO 22  UART RX from Pico over CAT5

RS-485/MAX3485 is fallback only and not currently planned.

GPIO 34  Ignition Sense

Future:
- Additional Relays
- Additional Sensor Inputs

Final assignments pending exact relay board verification.