Hint: it's striped Arduino with an L298 H Bridge and QRD1114
The first 5, various stages of the build for the five prototypes, preproduction run.
Very excited about this project, it been too long sine I've done a collaboration with others. Software is almost done thanks to Vin. Will post formally once all bugs are out and in the final revision (so far we are on version 5 with three variations).