Technology

Light Bar Controller

This is a nice example of how to sync LED’s to music. It uses an ATtiny13 and a microphone to sample the audio and control the show. You can download the schematics, PCB files and code on the web site. This device analyses the music it picks up via the electret microphone, then flashes the […]

Mobile robot does CNC

By way of Hack A Day comes this hexapod robot that does CNC fabrication. Only recently has [Matt] started playing with CNC. First, he did a pen plotter proof of concept. Now The bot can mill 3D surfaces in polystyrene. It’s still a little coarse and will probably always be a bit imprecise since it’s […]

TV wave visualizer

TV wave visualizer

Evan sent in this classic hack for turning a television into an oscilloscope-esque wave visualization device. Caution – this project is strictly for those with experience working with mains supplies and properly discharging the voltage stored in television electronics! I’ve personally had successful results with small portable battery-operated TVs. – Censtron Wave Vessel