Freematics Forum

Forgot to mention, I also can send the command "atsp0" with a response of "OK", meaning it successfully detected the protocol, right? Or does that just mean it successfully changed its mode to auto detect the protocol? I do this before sending command "0100", with the s...

Thanks for the quick response! I also tested on a 2001 Chevrolet Cavalier, with the same results. Today I connected to the adapter with USB, so I could directly send commands and see the results. I can get something like the following: Serial Console atz OBDUART v1.0 atrv 12.9V 0100 (I believe this ...

Hi, I'm hoping to use this OBD-II adapter as an MPG gauge in my 2009 Scion tC, using the speed and MAF sensors. Using the example sketch of turning a light on if RPM exceeds 3000 (I lowered to 1200), the light never turns on. Modifying that to also write to an OLED screen, so I can see that after a ...