Waveshare Isolated RS232 / RS485 / CAN/CAN FD Expansion Board, Compatible with Raspberry Pi 5/ 4B, expands 2X RS485 + 1x RS232+ 1x CAN FD + 1x CAN, Extending NVME, ETH, USB, and 4G/5G, etc

Based on Raspberry Pi 40PIN GPIO header, suitable for Raspberry Pi 4B and Raspberry Pi 5 Adopts SC16IS752 and SP485 combination scheme, expands SPI to 2x RS485 interface
Adopts MCP2515 and SN65HVD230 combination scheme, expands SPI to 1x CAN interface Adopts MCP2518FD and MCP2562FD combination scheme, expands SPI to 1x CAN FD interface
Adopts Raspberry UART and SP3232EEN combination scheme, expands UART to 1x RS232 interface Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection
Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance Onboard unibody power supply isolation, needs no extra power supply for the isolated terminal, provides stable current/voltage outputs of RS232, RS485, CAN, and CAN FD interfaces, and improves the anti-interference and anti-shock performance
Onboard digital isolation chip for safer signal isolation communication and better stability and anti-interference performance Onboard external power supply screw terminal for 7~36V wide voltage power input, combines with Pi5 Connector Adapter (B) to power the Raspberry Pi and the expansion board at the same time
Onboard 120 terminal resistor, configured by jumper Reserved interrupt resistor pad for flexible switching the interrupt pin if there is pin conflict when working with other HATs
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