FeaturesBased on Raspberry Pi interface design, suitable for Raspberry Pi Zero/Zero W/ZeroWH/2B/3B/3B+With CAN function, use SPI interface CAN controller MCP2515, with transceiver SN65HVD230With RS485 function, using UART control, half-duplex communication, support automatic switching of sending and receiving status without program control, the transceiver is SP3485On-board TVS (transient voltage suppression tube), RS485 communication can effectively suppress the surge voltage and transient peak voltage in the circuit, lightning protection and anti-staticReserve control interface for easy control by other controllersProvide complete supporting information manual (provide wiringPi and python routines)parameterWorking voltage: 3.3VCAN Controller: MCP2515CAN transceiver: SN65HVD230485 transceiver: SP3485Product size: 65mm x 30mmFixed hole diameter: 3.0mmFunction Pin Raspberry Pi Interface (BCM) Description3V3 3V3 3.3V Power PositiveGND GND Power groundSCK P11 / SCLK SPI clock inputMOSI P10 / MOSI SPI data inputMISO P9/MISO SPI data outputCS P8/CE0 SPI chip select signalINT P25 Interrupt outputRXD P15 / RXD RS485 serial port receivingTXD P14 / TXD RS485 serial transmissionRSE P4 RS485 transceiver settings (automatic transceiver by default, must be changed manually by welding), high-level transmission, low-level receptionPackage includes: 1* RS485 SPI CAN bus module

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