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 ...

In this video I've created a device that can notify in real time about events that happen on a website. The project uses NodeMCU board and a buzzer to produce sound as alert. The board is programmed ...

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

They’re searching for Nancy Guthrie’s heartbeat. Cops are flying over the Tucson desert with a high-tech Bluetooth signal detector, also known as a signal sniffer, in an attempt to locate a signal ...

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 ...

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 ...

An Algerian research team has developed a smart water-spray cooling system for PV panels that activates only when temperatures exceed a set threshold, boosting efficiency while minimizing water use in ...

I've used my Flipper Zero to replace lost remotes, open security doors, and more. Here's how to get started with your new favorite hacking tool. I’ve been writing about technology since 2012, focusing ...

Add Yahoo as a preferred source to see more of our stories on Google. There are some San Diegans who are taking advantage of the recent downpour to cut down on their water bills by using rain barrels.

Provide participants with the basic knowledge to calibrate, test and maintain both detection and spectroscopic radiation detection handheld equipment used in nuclear security for material out of ...