The YL-70 4-channel line tracker sensor provides easy line tracking because the associated YL-73 line sensor ... I quickly rigged up a crude one-channel touch-free toggle switch using an Arduino Uno.

After building devices that can read his home’s electricity usage, [Dave] set out to build something that could measure the other energy source to his house: his gas line. Rather than tapping ...

Researchers at the University of California, Irvine and FX Palo Alto Laboratory have unveiled details of a new Arduino-powered finger tracking system ... fingers with light sensors, Lift offers ...