First-person view of someone aiming a TV remote at a smart TV - Proxima Studio/Shutterstock In recent years, IR blasters have become a standard part of smart TV systems, but it's not always clear just ...

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 ...

Amanda Blum is a freelancer who writes about smart home technology, gardening, and food preservation. Previously, Amanda has worked as a technology strategist specializing in problem solving and ...

You can use mmWave sensors to monitor presence rather than simply detecting motion.