IBest 2-CH CAN HAT 2-Channel Isolated CAN Bus Expansion HAT Board for Raspberry Pi 4B 3B 2B Zero Zero W MCP2515 SN65HVD230 Dual Chips Solution with Multi Onboard Protection Circuits
IBest 2-Channel Isolated RS232 Expansion HAT for Raspberry Pi 4B+ 3B+ 3B 2B Zero Zero W SC16IS752 SP3232 Solution, Converts SPI to RS232 With Multi Onboard Protection Circuits
Waveshare 6 Channel Relay Module for Raspberry Pi Zero WH RS485 & CAN Power Relay Expansion Board Onboard Power Supply Isolation, Photocoupler Isolation, TVS, Loads up to 10A 250V AC or 10A 30V DC
USB2CANFD-X2 USB to Dual Channel CANFD Converter for Raspberry Pi4/Pi3B+/Pi3/Pi Zero(W)/Jetson Nano/Tinker Board/PC Provides Windows Linux Software and API Compatible with SavvyCAN Busmaster