Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now


555 Breathing LED | PCB Design

555 Breathing LED
Version 1 - Last update: Oct 17, 2015

Slow pulsing LED, like the Apple "sleep" light.

This PCB uses a 555 timer to make an LED "breathe" using pulse width modulation (PWM). Modified to include a trim pot for setting the speed.

Comments disabled