Unlike photodiodes and photovoltaic cells that have only two leads, a phototransistor's base connection allows a feedback circuit to control the device's bias point. Diverting current from the base ...

Elenco Snap Circuits Snapino Review Introduce your kids to Arduino and circuits with Elenco's Snap Circuits Snapino kit, but be prepared for a learning curve.

Introduce your kids to Arduino and circuits with Elenco's Snap Circuits Snapino kit, but be prepared for a learning curve.