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@li2hub
Created July 23, 2018 10:15
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int led = 9; // the PWM pin the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 10; // how many points to fade the LED by
void setup() {
// declare pin 9 to be an output:
pinMode(led, OUTPUT);
}
void loop() {
// set the brightness of pin 9:
analogWrite(led, 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 50 milliseconds to see the dimming effect
delay(50);
}
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