84 lines
2 KiB
Arduino
84 lines
2 KiB
Arduino
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/*
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Fade
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This example shows how to fade an LED on pin 9 using the analogWrite()
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function.
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The analogWrite() function uses PWM, so if you want to change the pin you're
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using, be sure to use another PWM capable pin. On most Arduino, the PWM pins
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are identified with a "~" sign, like ~3, ~5, ~6, ~9, ~10 and ~11.
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This example code is in the public domain.
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http://www.arduino.cc/en/Tutorial/Fade
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*/
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#define RED 11
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#define GREEN 10
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#define BLUE 9
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#define WHITE 6
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int brightness1 = 25; // how bright the LED is
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int brightness2 = 25; // how bright the LED is
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int brightness3 = 25; // how bright the LED is
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int fadeAmount1 = 1; // how many points to fade the LED by
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int fadeAmount2 = 1; // how many points to fade the LED by
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int fadeAmount3 = 1; // how many points to fade the LED by
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unsigned long previousMillis = 0; // will store last time LED was updated
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const long interval = 30; // interval at which to blink (milliseconds)
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// the setup routine runs once when you press reset:
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void setup() {
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// declare pin 9 to be an output:
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pinMode(RED, OUTPUT);
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pinMode(GREEN, OUTPUT);
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pinMode(BLUE, OUTPUT);
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pinMode(WHITE, OUTPUT);
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}
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// the loop routine runs over and over again forever:
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void loop() {
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// set the brightness of pin 9:
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unsigned long currentMillis = millis();
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if (currentMillis - previousMillis >= interval)
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{
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previousMillis = currentMillis;
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brightness1 = brightness1 + fadeAmount1;
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brightness2 = brightness2 + fadeAmount2;
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brightness3 = brightness3 + fadeAmount3;
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Serial.println(brightness1);
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if (brightness1 <= 10 || brightness1 >= 50)
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{
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fadeAmount1 = -fadeAmount1;
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}
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if (brightness2 <= 10 || brightness2 >= 55)
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{
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fadeAmount2 = -fadeAmount2;
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}
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if (brightness3 <= 10 || brightness3 >= 45)
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{
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fadeAmount3 = -fadeAmount3;
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}
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analogWrite(RED, brightness1);
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analogWrite(GREEN, brightness2);
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analogWrite(WHITE, brightness3);
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}
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}
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