Features: 1.For Raspberry Pi dual-channel CAN bus expansion board works as a dual-channel isolated CAN bus expansion board with multiple protection circuits. 2.Connect for Raspberry Pi series motherboard, based for Raspberry Pi 40pin GPIO interface, suitable for Raspberry Pi series motherboard. 3.Adopt MCP2515 and SN65HVD230 dual-chip combination scheme, support 2-way CAN interface communication. Onboard integrated power supply isolation, which can provide stable isolation voltage without additional power supply. 4.Onboard digital isolation chip, signal isolation communication is safer, better stability, more powerful anti-interference. Onboard SM24CANB transient voltage suppression tube, anti-static and transient spike voltage. 5.Onboard level conversion circuit can switch 3.3V/5V working level through jumper cap. On-board 120 termination resistance, can be set to enable through jumper cap. 6.Lead out serial peripheral interface control interface for easy access to STM32 and other main control boards. specification:Item Type: CAN module CAN Controller: MCP2515 Supply Voltage: 5V CAN Transceiver: SN65HVD230 Logic Voltage: 3.3V/5V Communication Method: Serial peripheral interface PackageList:1 x CAN Module1 x For RPI Stud Bag( 2PCs set)1 x Long Row Base 2 x 20PIN