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Results tagged with led
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user 182661
An LED is a light-emitting diode. Lighting an LED is considered the "Hello world" of a circuit design, and it can be as simple as using a series resistor, or it can get more complicated, involving PWM and multiplexing.
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Is smoke sensor safe for eyes / kids? [closed]
infrared LEDS which I heard were very harmful for eyes if looked at directly which I assume the IR LESS are inside and nor visible outside the smoke detector but I was wondering if there was any way the LED …
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