Breathing LED psd
a LED which slowly fades in and out
The rate of the breathing is governed by the charging and discharging of capacitor [C1], with a smaller value of say 33µF speeding up the breathing rate. The resistor [R2] may be slightly tweaked to adjust the rate, for example try 22kΩ.
Bill of Materials
|C1||100µF||Electrolytic capacitor; 100µF; voltage 10V|
|LED1||LED-10W-F||10mm LED frosted white|
|VCC1||9V||9V battery, PP3 or similar|
This project is published under the terms of the BSD License licence.