| The Mengenlehreuhr (“Set Theory Clock”) or Berlin-Uhr (“Berlin Clock”) consists of 24 lights. The top yellow light shows seconds, the two to...
More in Hobby & Modelling (138)
| Karl Reiter, a retired service engineer in Austria, maintains a well-stocked home workspace for restoring old radios and repairing electroni...
| Every robot project needs at least one motor to make it move something like a limb or a wheel. Often there are more motors to control but sp...
| Restore an old valve radio by adding an Arduino board and an MP3 player to it. Make it play recordings of radio shows from the previous cent...
| Want to make your family and friends feel uncomfortable? Here is a good way to do it without having to bring up taboo subjects during conver...
| Node.js enables you to execute programs written in JavaScript. This project details how to control a stepper motor with a Raspberry PI runni...
| Here is a great conversation starter: a simple device for levitating small objects. Build one and impress your friends. It is small, and the...
| This small test circuit is a handy aid for anyone who frequently works with servos. It is often sufficient that you can connect a servo to t...
| Electronic systems can help the visually impaired. This innovative project combines an Arduino Nano, a TCS34725 color sensor, and a buzzer...
| Tired of your kids shooting foam balls and arrows at your expensive decorative objects? Then build this multi-shooter electronic target for...