This project started as an Idea a couple years ago and has been a slow progress since then. It's a Raspberry Pi based car computer, that will be interfacing with my B-series motor swapped Honda Civic with an OBD-I setup. So far I've got a standalone system with a RPi model B revision 2, and an Adafruit TFT display that plugs into the top. The clear acrylic box designed for the RPi has been cut on the top to accomodate the screen, so the whole assembly fits in the box, and it can be powered by an external battery normally used for charging cell phones. I've also got a bluetooth module and keyboard/touchpad to control it. The project is still in the planing phase, but I've got a Pi Cobbler kit to help figure out some interfacing. Ideally, I want to read the RPM's off of the tachometer, throttle position off of the TPS, USB GPS, and possibly read the OBD trouble codes and display them when present and maybe a reset button, since reading them only requires that a wire be jumpered. This will eventually be placed either near the gauge cluster, or in the dash somewhere. May swap to a bigger display, depending on what kind of interface I decide on.
I know this is an old thread but I was wondering if you had any updates.