The RS485 CAN HAT will enables your Pi to communicate with other devices stably in long-distance via RS485/CAN functions. Features: Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+ CAN function, onboard CAN controller MCP2515 via SPI interface, with transceiver SN65HVD230. RS485 function, controlled via UART, half-duplex communication, with transceiver SP3485. Reserved control pins, allows to work with other control boards. Comes with development resources and manual (examples in wiringPi/python).