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The latest DIY ideas, techniques and tools for the kitchen, garage and backyard from food to furniture to fun & games for your family.

Sound following LEGO robot

Sound following LEGO robot

Matthew writes – “There are a lot of LEGO Mindstorms robots out there, but I finally found the best. Nic_1 is a Johnny V impersonator that detects the direction of sound and follows it. Detection is accomplished by calculating the cross-correlation of two audio signals from the binaural sensor. The data is used to estimate […]

The Godzilla PVR

The Godzilla PVR

Vermin writes – “I stumbled across this bit of overkill describing the construction of a PVR (personal video recorder) with the following specs: 4 x HDTV tuners, 7 x SD tuners, all can work simultaneously, 4 x 250GB drives – 1TB of storage space, 112 hours of HDTV recording or 424 hours of SD recording.” […]