The module adopts dual chips of CAN controller MCP2515 and CAN transceiver ATA6561-GAQW-N. It supports dual-channel CAN interface communication, and only one module is needed to carry out CAN transceiver test on RPI Onboard SM24CANB (Transient Voltage Suppressor), anti-static and transient spike voltage Onboard level conversion circuit, the working level of 3.3V/5V can be switched by slide switch Onboard 120? terminal resistance, it can be set Enable by slide switch Leads out the SPI control interface, for connecting with host control boards like STM32/Ardui.Notice: The for Raspberry Pi in photos is NOT included.