Burkhard Kainka
About the article

Smooth Flasher

Ordinary LED flashers turn the LED on and off abruptly, which can get a little irritating after a while. The circuit shown here is more gentle on the eyes: the light intensity changes very slowly and sinusoidally, helping to generate a relaxed mood. This circuit is capable of driving two LEDs in series without affecting the current. The frequency is set by three RC networks.
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