Macchina's $28 ODB2 Breakout Board Aims to Simplify Automotive Hacking, Development

Designed for easy sniffing, man-in-the-middle attacking, and emulation of ODB2 devices, the breakout is configured using jumper wires.

Gareth Halfacree
4 years ago β€’ Automotive / Debugging / HW101
The ODB2 Breakout makes for easy device development and debugging. (πŸ“·: Macchina)

Macchina's Don Stratton has launched a breakout board designed for automotive hacking and device development, allowing for signals to be shuffled between ODB2 connectors and sniffed, man-in-the-middle attacked, and emulated.

Stratton first showed off the board design for the Macchina ODB2 Breakout back in January, publishing a detailed guide to its capabilities. Now, the board is up for sale on Tindie as a fully-assembled design, complete with the jumper wires required to unlock its full functionality.

"This OBD2 Breakout board is designed to simplify OBD2 device development," Stratton writes. "The junction blocks gives you the flexibility to change how signals move between connectors. Install a jumper wire between rows to make 'through' connections, or jump over to other pins to rearrange signals.

"The board can function in several 'modes' by altering how the signals route through the system. For example, Sniffer: This mode enables you to use external test equipment to watch traffic; Man-in-the-middle: Put an OBD2 device (e.g. M2) in between the host and another OBD2 device (e.g. an OEM scanner); Emulator: Connect 2 OBD2 devices together for desktop development purposes; Other: The breakout board has many possible modes, all of which can be configured using standard jumper wires."

The design of the board has been published to the Macchina GitHub repository; fully-assembled boards, meanwhile, can be purchased from Tindie for $28.

Gareth Halfacree
Freelance journalist, technical author, hacker, tinkerer, erstwhile sysadmin. For hire: freelance@halfacree.co.uk.
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