appillustrator/hardware

OBD-II CAN adapter for the Particle Photon

Carloop

OBD-II CAN adapter for the Particle Photon/Electron

By Julien Vanier

I wanted to make a compact internet-connected analyzer for my car's OBD-II diagnostic port.

The WiFi-capable Particle Photon or better yet the cellular Particle Electron are great options for that.

Luckily the pins for a Photon fits right in between the 2 rows of pins of a straight OBD-II connector so it's possible to make a very compact OBD-II adapter with a Photon.

Preorder one!

Features

• High-speed CAN transceiver adapted from the OpenXC project
• Get power from the OBD-II port using a robust circuit adapted from the OpenXC project
• GPS connector
• Stacked components for a more compact development kit than a traditional 90-degrees PCB mount OBD-II connector.
• Powered by the Particle platform!

Images

PCB

Assembled adapter

• With Photon
• With Electron
• Front view
• Side view
• Back view
• Angle view

Hardware

Here are the PCB design files for the Revision 2.1

• Schematic (PDF) (Eagle)
• Layout (top) (bottom) (Eagle)
• Bill of materials
• OSH Park order page

Software

I helped implement the CAN driver in the Photon and the Electron. I will see what I can do with it now!

To be continued...

License

Copyright 2016 Julien Vanier

Licensed under the GPL v3