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Improves Fade to ensure PWM pin is used #4061

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Nov 4, 2015
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Improves Fade to ensure PWM pin is used #4061

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9 changes: 7 additions & 2 deletions build/shared/examples/01.Basics/Fade/Fade.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,16 @@
This example shows how to fade an LED on pin 9
using the analogWrite() function.

The analogWrite() function uses PWM, so if
you want to change the pin you're using, be
sure to use another PWM capable pin. On most
Arduino, the PWM pins are identified with
a "~" sign, like ~3, ~5, ~6, ~9, ~10 and ~11.

This example code is in the public domain.
*/

int led = 9; // the pin that the LED is attached to
int led = 9; // the PWM pin the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by

Expand All @@ -32,4 +38,3 @@ void loop() {
// wait for 30 milliseconds to see the dimming effect
delay(30);
}