Thread: OBDII Arduino Shield

Originally Posted by bwallen

Does such a thing exist? I've see how I can make my own, but I don't want to reinvent the wheel if I don't have to. I also saw a serial port shield. Would that work if my OBDII cable has a serial connector?

What do you want to do? The arduino is probably capable of reading the serial data off the OBD device, and you "could" write code to interpret said data, but why? Specifically, why on an arduino and not on your PC?


(As for the OBDII shield...maybe. I saw talk about it on a forum somewhere, but haven't seen a device for sale anywhere)

VegasGuy

I'd rather go with an arduino because they're smaller and more cost effective than a full fledged PC. All I really want is to output some data to an LCD screen, such as RPM, MPG, error codes, etc. This way I won't have to buy a computer and touch screen LCD.

Originally Posted by bwallen

Does such a thing exist? I've see how I can make my own, but I don't want to reinvent the wheel if I don't have to. I also saw a serial port shield. Would that work if my OBDII cable has a serial connector?

Would this be what you are looking for ?

http://www.sparkfun.com/products/10039

My Arduino + CAN BUS SHIELD working.

I just made a virtual dashboard with an Arduino UNO, a LCD shield and a ELM327 adapter. Arduino communicates with a ELM327 and also gets powered from it.

You can take a look at my article:
How to let Arduino talk with your car through OBD-II