A generic i/o board for my RV, includes the following:
- CAN BUS interface
- 2 relay outputs SPDT
- 2 N-FET sink outputs
- 4 three state inputs, connect to GND, +12 or leave open
- 1 input for D+ (when the engine runs)
- Multiple DS18B20 temperature sensor bus
- 2 INA219 current/voltage sensors for starter battery and RV battery
- Battery standby
- ESP32 with 4MB Flash, WiFi, Bluetooth
- 2 on boa...
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