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Simple LED Flasher

by Firdaus Aris on Sep.07, 2009, under Electronic

This circuit below will allow you to flash two LED alternately R2 controls the flash rate. You can increase the flash rate by increasing or decreasing the value of R2 (100k slow rates). R1 controls the flow of current through the LED.

A Simple LED Flasher

Schematic For LED Flasher

 R1 = Resistor 470 R

 R2 = Resistor 100K

 C1 = Capacitor 10uF

 Q1 = Transistor NPN 2N3904

 B1 = 9V battery

 D1, D2 =LED

 

 

 

 

LED Flasher


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