Fun with LED. Simple Design 15


LED is a wonderful semiconductor without which a circuit is generally incomplete. LEDs are used mainly as indicators to show whether the output of a particular section of the circuit is working or not. Let us see some simple circuits using LEDs that you can try.
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LED Resistor Calculation

We use LED in different circuits as indicator or for lighting purpose. LED is the diode that requires minimum current and voltage for its operation. A series resistor is must for LED without which, the LED will be burned. See how an LED resistor can be selected.