Friday, October 31, 2008

LED light flasher

LED light flasher circuit diagram
This is a very basic circuit for flashing one or more LEDS and also to alternately flash one or more LEDs.

It uses a 555 timer setup as an astable multivibrator with a variable frequency.
With the preset at its max. the flashing rate of the LED is about 1/2 a second. It can be increased by increasing the value of the capacitor from 10uF to a higher value. For example if it is increased to 22uF the flashing rate becomes 1 second. Advertisement:

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