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 ...

We asked experts about why our LED bulbs seem to die ahead of time. Here are the reasons they gave. Tyler has worked on, lived with and tested all types of smart home and security technology for over ...

Tyler has worked on, lived with and tested all types of smart home and security technology for over a dozen years, explaining the latest features, privacy tricks, and top recommendations. With degrees ...

PCWorld explores essential factors for selecting CRT monitors for retro gaming, covering resolution, refresh rates, dot pitch, and display technology differences. Key specifications include 17-21 inch ...

You’ve seen the headlines. Now let’s break them open. Sasha-Ann Simons connects you with the people behind the stories: experts, neighbors and newsmakers who shape the city we share. It’s news, ...

If your car came from the factory with halogen or HID bulbs, you’re going to need to replace them or upgrade them down the line. Both of these bulb types lose light output over time; thus, even if ...

Last year, we brought you a story about the BhangmeterV2, an internet-of-things nuclear war monitor. With a cold-war-era HSN-1000 nuclear event detector at its heart, it had one job: announce to ...

You might love the motivating tempo for workouts or the cadent call for calm that a smartwatch heart rate monitor provides. But when it’s time for an upgrade, what ...

Whether you're a traveling exec, a gamer, or a graphic designer, a portable second monitor can add an extra dimension to your work or play. We've tested most of the major models. Check out our top ...

We've scoured the internet for the best deals on gaming monitors, so you don't have to. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.