Pipe local wireless noise through an SDR into an RPi, and 64 LED filaments do the rest Unless you live in a Faraday cage, you ...
Spectrum Slit a light sculpture visualizes RF activity with an SDR receiver and sixty?four filament LEDs, helping you see ...
Raspberry Pi enthusiasts and retro gamers looking for a project to keep themselves busy this weekend may like to take inspiration from this awesome ZX Spectrum computer built inside an audiocassette.