Standard 40PIN GPIO extension header, supports direct attaching to Jetson Nano. Reserved control pins, allows to work with other control boards. ^^ Onboard CAN controller MCP2515 via SPI interface, matching with SIT65HVD230DR transceiver. Onboard digital isolation chip, safer signal isolation communication and better stability and anti-interference. ^^ Features RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard transceiver SP3485. ^^ Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit for RS485 transceiving, lightningproof & anti-electrostatic.
^^ 3.3V Operating volatge, 3.0 mm Mouniting hole size. With development resources and manual on product description page (examples in python).