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 ...

One of the problems with being a graffiti artist is that you have to carry around a different spray can for each color you intend to use. [Sandesh Manik] decided to solve this problem by building ...

I had this idea of building my own bicycle lighting system totally personalized, the lights would have the exact lighting pattern I wanted and the shape I decide. That's why I started to build this ...

Chemists in South Korea have created a stable color-changing sensor that displays an easily quantifiable response to the pH of its surroundings. Published in Microsystems & Nanoengineering, Dong-Hwan ...

A century after Erwin Schrödinger sketched out a bold vision for how we perceive color, scientists have finally filled in the missing pieces. A Los Alamos team used advanced geometry to show that hue, ...

Researchers in the US have revealed that an emerging class of quantum sensors, called ...

The search for Nancy Guthrie has taken a high-tech turn. The Arizona police department is now flying over the Tucson, Ariz., desert with a Bluetooth signal detector, also known as a signal sniffer, in ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

Don't let your spring break plans derail because of spy cameras. Here's how to find them in vacation rentals. Tyler has worked on, lived with and tested all types of smart home and security technology ...

Nurses are the tireless heroes of healthcare, unsung and under-resourced. They believe in the work they do and work every day to do more with less. Thankfully, new technologies and workforce ...