I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

For today's how-to we spent some time rummaging around in our parts box to build a serial IR remote interface for our PC. We took a few pieces from various designs to come up our own, built ...

Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This beginner-friendly project is perfect for learning basic electronics, sensors, and data ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Quin Etnyre walks to the front of a crowded room at Deezmaker 3D ...