An earlier version of this automatic gateman system, built around a camera-based design, was published on the Electronics For ...

In this module we will wire up an ultrasonic sensor and attach it to our Raspberry Pi. Using the ultrasonic sensor we will measure the distance an object is away from the sensor. The distance of the ...

The Raspberry Pi might sound like dessert, but it's actually a credit card–sized computer changing the world of DIY tech. First launched in 2012 by the Raspberry Pi Foundation, it was designed to make ...