I am trying to add a simple parameter that is not including in the obd.h file.
I added #define PID_O2VOLTS 0x14 in the obd.h file to try to get o2 volts.
I then added PID_O2VOLTS in the datalogger sketch and I get <<< 'PID_O2VOLTS' was not declared in this scope >>> error.
Any ideas. I'm sure it's something simple. I need to add others once I figure this out.
thanks in advance.