When that happens, they could cause serious injuries. For this reason, having properly functioning safety sensors on ...

(There's even a sensor for measuring the clarity of water.) ...

In this installment, reader [ray] made his own garage door opener and chose the ESP8266 as the wireless interface of choice, but spiced the application up with an ultrasonic sensor that detects ...

Learn how to replace MyQ remote garage door sensor battery easily with our step-by-step guide. Keep your garage secure.

It wouldn’t be until the 17 th Century that automatic doors made a comeback, or perhaps it’s just that they experienced a ...