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 ...

A hackerspace is a place that generally needs to be accessed by a wide group of people, often at weird and unusual hours.

For over 5 years, Arthur has been professionally covering video games, writing guides and walkthroughs. His passion for video games began at age 10 in 2010 when he first played Gothic, an immersive ...

For over 5 years, Arthur has been professionally covering video games, writing guides and walkthroughs. His passion for video games began at age 10 in 2010 when he first played Gothic, an immersive ...

March 9, 2026: We added nine new Infinity Nikki codes for free Diamonds and Shiny Bubbles. What are the new Infinity Nikki codes? The fifth installment of Infold Games' dress-up series marks its debut ...

Universal Tower Defense has 'temporarily' been shutdown. We'll update this page if the game comes back! Universal Tower Defense is a classic Roblox tower defense game that’s packed with characters ...

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 ...

You’ll want to redeem these codes quickly, as they expire on Feb. 15 at 11 p.m. EST. They not only reward Primogems, but they also give Mora and Adventurer’s EXP ...

Redeeming these Abyss codes will reward you with free Star Shards for rerolling your class, as well as items that restore oxygen and boost your speed. When your fishing trip is interrupted by a Kraken ...

If you're looking for DTI codes, IGN's got you covered! In this article, you'll find a list of all the active and working Dress to Impress codes in March 2026 that you can redeem for free rewards and ...

March 04, 2026: We checked for new Valorant codes and verified our list. What are the new Valorant codes? Everyone likes it when they get free stuff, and it's even better when it's for hugely popular ...