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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

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TRKBRD surface touchpad puts your weekend DIY project to shame, probably

We’ve seen every manner of touchpad — multitouch , gesture recognition , no touch , LCD trackpads — if you can think of it, somebody has probably done a version of it. Take this particular one for example, which just might rank below even the touchscreen GBA in terms of practical usefulness — though, it’s not as if utility is a prerequisite of joviality, right? If you’ve been neglecting that DIY muscle of late, you owe it to yourself to check out the video beyond the break, which shows that a humble touchpad can learn new tricks.

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Video: Arduino-powered touchpad mimics iPod volume control

Do you have any idea where you head when you’d like to sue everyone on the face of the planet, make yourself look like a Class-A fool and get a mention right here? The Eastern District of Texas (Tyler) District court, that’s where . The freshest meshuggeneh to head on down there and start trouble is Tsera, who’s claiming that Apple, Microsoft, LG, Philips, Bang & Olufsen, iriver, Coby, Cowon and even Meizu are violating a patent that it owns

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Tsera thinks it owns the touchpad, sues pretty much everyone to prove it