A magnetometer is a device that measures magnetism: the direction, strength, or relative change of a magnetic field at a ...

A compact embedded systems project that uses a Heltec Wireless Stick V3 (ESP32‑S3) and a pair of IR break‑beam sensors to detect direction and count people moving through a doorway. The device can run ...

You’ve probably seen a flipbook. That’s a book with pictures on each page. Each picture is slightly different than the last one so if you flip rapidly through the book you get a little animation. We ...

This easy-to-build walking reindeer can be constructed with only a bow motor, battery, wires, and a few other parts.

Despite being cooked up by Compuserve back in the late 1980s, GIFs have seen a resurgence on the modern internet, mostly because they’re fun. However, all our small embedded systems are getting color ...

This top-rated ice maker from Whirlpool will let you hold up to 25 pounds of ice at a time, more than enough to cool down a pitcher of mint lemonade. This model uses special freezing technology to ...

Nanosensors are chemical or mechanical sensors that can be used to detect the presence of chemical species and nanoparticles, or monitor physical parameters such as temperature, on the nanoscale. They ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...