Using Arduino code

[debouttethibault]

How do I use the provided Arduino code to connect the software to a '95 Wrangler YJ over the SCI bus? The car only has a 6-pin Data Link connector. I would like to read the error codes from the PCM.

[laszlodaniel]

Here is a solution for you while they get back to this great project:

https://gist.github.com/laszlodaniel/9086006abcb726d0cee8bfde396f3de3

You will need an inverting buffer chip in the RX/TX lines because OBD1 controllers use inverted UART logic. As far as I know Kate's software does not support OBD1 controllers.

[debouttethibault]

Okay, thank you very much! I will try it out as soon as I get the parts to invert the signals.

[xerootg]

You might be able to get away with using SoftwareSerial which should drop in and supports inverted logic.

[katemonster33]

Hi! Very nice to see interest still popping up for this project.

To answer your question, another set of libraries other than this one is probably what you want. In a really early commit to this repository, the Arduino code was much friendlier to use with an Arduino IDE terminal but this current version was meant to have my C# application talking to it. I was working on porting the embedded code over to C anyway so I'm not sure if it even works.