LED Projects

Light Emitting Diode Projects

Tag Archives: detector

DIY LEDs as light detectors

Embedds admin in his post has perfectly written:  “From semiconductor physics we know that semiconductor junction when exposed to light becomes more conductive. So when LED cathode is connected to +5V and anode to 0V it simply charges as capacitor.Then program switches anode pin to high Z input and read its state. Depending on time taken […]

LED based 4m WiFi Detector

You’ve seen number of WiFi detectors before, but none quite like as shared by Donald Melanson, a member of Engadget. Donald shared an ambitious project so called WiFi networks with light cooked up by Norwegian designers. The project is basically composed of a four-meter long WiFi-detecting rod that boasts 80 LED bulbs and picks up signals of various strengths from […]