# Hardware BOM

## Ordered

- Raspberry Pi Pico 2 W
- ESP32 2-Channel Relay Board
- 3.5" SPI Capacitive Touchscreen

## Required

- 4x DS18B20 Waterproof Sensors
- 12V→5V Buck Converter
- CAT5 Cable
- Bosch Relay Sockets
- 30A/40A Bosch Relays
- Automotive Fuse Block
- Assorted ATC Fuses

## Future / Optional Fallback

- 2x MAX3485 RS-485 Modules, only if UART over CAT5 proves unreliable
- Pi Zero 2 W
- GPS Module
- ELM327 OBD-II Interface
- CAN Interface
- Additional DS18B20 Sensors