A designer who uses a phototransistor to convert a modulated optical signal to an electrical signal frequently encounters problems when high-intensity background light saturates the phototransistor.

A digital camera has an array of sensors that captures light reflected or transmitted onto it. This build is something closer to a reverse camera – a single sensor that makes images on a matrix of ...

Arduino is the now-famous microcontroller that has set a portion of the maker community free to design amazing creations. The Arduino board and platform is fairly simple, but it can be intimidating to ...

Introduce your kids to Arduino and circuits with Elenco's Snap Circuits Snapino kit, but be prepared for a learning curve. Elenco's Snap Circuits line is the most affordable—and also one of the ...