You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.0 KiB
Plaintext
44 lines
1.0 KiB
Plaintext
/*
|
|
Fading
|
|
|
|
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 17 June 2009
|
|
By Tom Igoe
|
|
|
|
http://arduino.cc/en/Tutorial/Fading
|
|
|
|
*/
|
|
|
|
|
|
int ledPin = 9; // LED connected to digital pin 9
|
|
|
|
void setup() {
|
|
// nothing happens in setup
|
|
}
|
|
|
|
void loop() {
|
|
// fade in from min to max in increments of 5 points:
|
|
for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5) {
|
|
// sets the value (range from 0 to 255):
|
|
analogWrite(ledPin, fadeValue);
|
|
// wait for 30 milliseconds to see the dimming effect
|
|
delay(30);
|
|
}
|
|
|
|
// fade out from max to min in increments of 5 points:
|
|
for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5) {
|
|
// sets the value (range from 0 to 255):
|
|
analogWrite(ledPin, fadeValue);
|
|
// wait for 30 milliseconds to see the dimming effect
|
|
delay(30);
|
|
}
|
|
}
|
|
|
|
|