How to Make an LED or a light emitting diode
5:29
How to Make an LED or a light emitting diode
Take a tour through the world of the light-emitting diode. Learn - who invented it, how to use it, and how to make your own.A light-emitting-diode (LED) (pronounced /??li?'di?/),[1] is a semiconductor diode that emits light when an electric current is applied in the forward direction of the device, as in the simple LED circuit. The effect is a ...
gadgethacks.com2017年2月1日
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