10maurycy10, an engineer who reverse engineers various devices, published the results of his analysis of the microwave radar sensor 'RCWL-0516' that sells for $1 (about 161 yen) on his blog. The ...

Getting gifts from your family and friends’ wishlists is easy, but getting them something meaningful will make them grateful forever. You'd be surprised how inexpensive it is to make your own cheap ...

I've been playing around with a couple of ESP32 microcontrollers, and that experimentation has taught me a lot about sensors and what you can build for really, really cheap. For as little as $4, you ...

Video: A combination of movement sensors and ultrasound emitters might lead to versatile motion capture systems for controlling computers Video games like Dance Dance Revolution could soon require ...

Kangaroo presents a very low barrier to entry when it comes to home security, but it’s extremely feature limited and it only protects your home while you’re not in it. Motion sensors are an essential ...