It may not seem like much from this video, but Malmö University graduate student Rob Nero has assembled himself surface-based touchpad using all Arduino products and "simple Algebra." Dubbed TRKBRD, the device uses hyper-fast flashing LEDs and IR sensors to calculate the XY coordinates of the shadow, and subsequently the finger itself. We haven't seen it hooked up to a computer just yet, but we hope there's more to come. Videos of the successful trial run and some preliminary testing and wiring after the break.
[Via Make: Online]
