This circuit shows how to use an ordinary LED as a light sensor. It makes use of the photovoltaic voltage developed across the LED when it is exposed to light. LEDs are cheaper than photodiodes and ...
Designed by Nova Radio Labs in the US, the Novaduino Environmental Sensor Kit is an Arduino-programmable air quality and ...
Anyone can hang a poster from the wall, but if you're willing to put a little DIY into your home decorations, this Arduino-powered LED wall-art looks amazing, and reacts to music playing in the room ...
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