Ring Alarm is a spectacular DIY home security system with the potential to be much more, but don’t buy one if what you’re really looking for is a smart home solution. Ring builds some of our favorite ...

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 ...

Don't wake up one day wondering where your car went. Protect your investment with a good car alarm system. ith the advent of built-in vehicle immobilizers and keyless entry remotes, the aftermarket ...