For complete cables, you may wish to try OBD2Cables,, B&B Electronics, Multiplex Engineering, and Yason Electronics. Have you tried OBD2AllInOne? They carry components for you to assemble your own, as does OBD2Cables. This is difficult as they are not that easily found. Perhaps you may wish to use both pins 1 and 2 of the connector for your circuit common. We used cables from for our testing, but you may obtain your cables from anywhere (and modify the board connections to suit). Yes – the demonstration board was only created for testing the IC, and was not meant to cover all situations.
My OBD cable uses pin 2 for common, but I see that your demo board uses pin 1.
Why not use two 14 pin sockets, end-to-end? Many brands can be connected this way, will work fine, and are likely a lot less expensive than a 28 pin one. I can not find a 0.3″ wide 28 pin socket. It’s for a Bluetooth interface, but even if that is not what you want, he’s done 98% of the work for you. He has created an Eagle printed circuit board project for the ELM327 and placed it up on GitHub to share. makes no claims, and offers no guarantees as to the circuits’ performance.Īnother option has been provided by Bart Kuijper. You are free to use these files as you wish, but Elm Electronics Inc.
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