In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

If you happen to be in the market for a small artificial sun, you may be interested to know that for about $1300, you can get a tennis-ball-sized LED array that outputs 120,000 lumens.

There’s a well-known movie trope in which a hacker takes control of the traffic lights in a city, causing general mayhem or ...

You may or may not be reading this on a smartphone, but odds are that even if you aren’t, you own one. Well, possess one, ...