I have been stealth following your project and maybe starting with something slightly easier than the full OBD route would help to get things rolling. I have expressed this as a wishlist item before but I have no programming skills to be able to do it myself.


Most modern cars will have a electronic speedo sense that goes into the ECU which will give 4 or 8 pulses per wheel revolution. Link this into the empeg serial port (shouldn't take much) and you can then measure distance using the empeg by simply counting pulses.

The empeg has a RTC so you then have the ability to measure acceleration (0-60 times), speed (current,avg,top), deceleration, write journey logs etc,etc.

The hardware/compatibility part of this should present a much smaller hurdle than OBD and the resultant functionality could be quite useful to a much wider audience.

Whay think ye?