This Arduino handheld game console is lightweight, easy to carry, and simple to build, making it perfect for hobbyists, ...

In this video, I created a blood oximeter by using the MAX30105 particle sensor to figure out the changes in color of passing ...

You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Every ham radio shack needs a clock; ideally one with operator-friendly features like multiple time zones and more. [cburns42 ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more No one likes getting up in the morning — unless you're an early bird — but a good alarm clock makes waking ...