Build a laser oscilloscope using Lego, littleBits, Erector set, and the Kano Computer. In honor of The International Year of Light I’ll demonstrate how use the Kano computer to drive a littleBits motor with an optical coupler, or optocoupler. An optocoupler, according to Wikipedia, “is a component that transfers electrical signals between two isolated circuits by using light.” The Kano Computer is one isolated circuit and the littleBits Light Sensor/Motor is the second isolated circuit. I’ll use the Kano Computer to flash an LED (Light Emitting Diode) and these flashes are read by the littleBits Light Sensor to turn the littleBits motor on and off.
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