Arduino-Makefile/tests/Fade/Fade.ino
Christopher Peplin c86ce093ce Add a script to compile examples as an automated test suite.
* Added script/boostrap.sh to download the Arduino IDE and MPIDE (for
    chipKIT). Tested in Linux, should work in Cygwin and OS X too.
* Added script/runtests.sh to run "make" in each example project and
    collect the results. The script returns -1 if any fails.
* Moved currently testable examples to a "tests" directory, separate
    from examples that require alternative cores.
2014-09-09 23:17:15 -04:00

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C++

/*
Fade
This example shows how to fade an LED on pin 9
using the analogWrite() function.
This example code is in the public domain.
*/
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
void setup() {
// declare pin 9 to be an output:
pinMode(9, OUTPUT);
}
void loop() {
// set the brightness of pin 9:
analogWrite(9, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}
// wait for 30 milliseconds to see the dimming effect
delay(30);
}