I see what you mean now. That's why I'm tiring to build one without the elm I don't want to have to use my phone for that cause I don't want to always have it plugged in or be draining the battery but the elm only uses Bluetooth now. That's why I'm hoping to do be able to read & clear DTCs on the OBDuino build I'm doing it gives a bit of incentive to make one. Of you're interested in it I don't mind your input on the build in the other thread I think I'm about ready to order my parts for the OBDuino 2 ( I guess that's what I'll call it ) and try it out.
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