GI: "YarGauge" replacement clock module (Digital Tach, etc.)

[tk-421]

Originally Posted by CTScott

I need to add a software interface for grabbing GPS data from my little USB GPS, then I could plot fuel economy vs location and change in altitude. That would let the hypermilers optimize their routes.

There's already an open-source approach to this that you may be interested in checking out:
http://icculus.org/obdgpslogger/