Hello all. Happy new year to all of you out there !!
Now to the serious stuff: I need to continously read out some of the OBD2 data available in my car. It's about long and short term fuel trim datas. Well, I know the ELM327 can be used, and use it as a OBD protocoll device. BUT - it would be even more elegant to use a custom PIC microcontroller already running a firmware which communicates over OBD through a interfacechip like MC33290 or so. I don't need to read out datas on a LCD, I just need the datas as input to my processing. Like this:
- I initiate a read of short-term fuel ratio.
- I get back a string of data from car ECU through OBD protocoll.
Does anyone know of a DIY open source OBD protocoll PIC processor?
Best regards The freak