Fading using an Arduino

Fading using an Arduino (2)

Demonstrates the use of analog output (Pulse Width Modulation (PWM)) to fade an LED. PWM is a technique for getting an analog-like behavior from a digital output by switching it off and on very fast.

Fading using an Arduino (2)


An LED connected to digital output pin 9 through a 220-ohm resistor.


image developed using Fritzing. For more circuit examples, see the Fritzing project page

Fading using an Arduino schematic (2)



This example shows how to fade an LED using the analogWrite() function.
The circuit:
* LED attached from digital pin 9 to ground.
Created 1 Nov 2008
By David A. Mellis
modified 30 Aug 2011
By Tom Igoe
This example code is in the public domain.



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