Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagine ...

[Michael Gerstenmayer] has been very successful in developing a biofeedback system. He’s based the build around an Arduino and started adding different chunks to the project to develop a full-featured ...

The project aims to build a very simple clock that does not contain any buttons, alarms, or settings besides time as it uses infrared to detect light. The IR sensor data is being read by the ...