RS485 CAN HAT is a multi-node communication module, to communicate with devices in a long-range, designed dedicatedly for single-board computers like Rock, Raspberry Pi, Banana Pi, and more with an operating voltage of 3.3 V, CAN controller MCP2515 via SPI interface, onboard transceiver SN65HVD230 that is controlled via UART. It is built to support automatic TX/RX control without programming. It performs half-duplex communication and it has an onboard transceiver SP3485.