TekaSketch: Where Etch A Sketch Meets Graph Theory

Two hands working a TekaSketch

The Etch A Sketch was never supposed to meet a Raspberry Pi, a camera, or a mathematical algorithm, but here we are. [Tekavou]’s Teka-Cam and TekaSketch are a two-part hack …read more Continue reading TekaSketch: Where Etch A Sketch Meets Graph Theory

Serious Chemical Threat Sniffer on a Budget

Street with polluted smoggy air

Chemical warfare detection was never supposed to be a hobbyist project. Yet here we are: Air Quality Guardian by [debdoot], the self-proclaimed world’s first open source chemical threat detection system, …read more Continue reading Serious Chemical Threat Sniffer on a Budget