CAN bus to USB serial board/cable Arduino Leonardo - fits inside OBD shell

Custom designed CAN bus to USB serial board

Supports Arduino IDE, preinstalled Arduino bootloader

ATMEGA32u4 chip - equivalent to Arduino Leonardo

Mini USB connector for programming and normal use

Supports up to 1Mbit/s CAN speed

These fit inside an OBD shell

Supplied ready to use at default 500kbit/s CAN speed with a basic serial protocol in order to send/receive CAN packets, software packet ID filtering

Example code as supplied: https://github.com/james-portman/usb-to-can-bus