mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-11 22:24:13 +01:00
35777612c0
All examples in /build/shared/examples/ and /libraries/ have had their extensions changed to .ino
46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
/*
|
|
Mega analogWrite() test
|
|
|
|
This sketch fades LEDs up and down one at a time on digital pins 2 through 13.
|
|
This sketch was written for the Arduino Mega, and will not work on previous boards.
|
|
|
|
The circuit:
|
|
* LEDs attached from pins 2 through 13 to ground.
|
|
|
|
created 8 Feb 2009
|
|
by Tom Igoe
|
|
|
|
This example code is in the public domain.
|
|
|
|
*/
|
|
// These constants won't change. They're used to give names
|
|
// to the pins used:
|
|
const int lowestPin = 2;
|
|
const int highestPin = 13;
|
|
|
|
|
|
void setup() {
|
|
// set pins 2 through 13 as outputs:
|
|
for (int thisPin =lowestPin; thisPin <= highestPin; thisPin++) {
|
|
pinMode(thisPin, OUTPUT);
|
|
}
|
|
}
|
|
|
|
void loop() {
|
|
// iterate over the pins:
|
|
for (int thisPin =lowestPin; thisPin <= highestPin; thisPin++) {
|
|
// fade the LED on thisPin from off to brightest:
|
|
for (int brightness = 0; brightness < 255; brightness++) {
|
|
analogWrite(thisPin, brightness);
|
|
delay(2);
|
|
}
|
|
// fade the LED on thisPin from brithstest to off:
|
|
for (int brightness = 255; brightness >= 0; brightness--) {
|
|
analogWrite(thisPin, brightness);
|
|
delay(2);
|
|
}
|
|
// pause between LEDs:
|
|
delay(100);
|
|
}
|
|
}
|