43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
/*
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Fading
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This example shows how to fade an LED using the pwmWrite() function.
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Created 1 Nov 2008
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By David A. Mellis
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Modified 17 June 2009
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By Tom Igoe
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Modified by LeafLabs for Maple
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http://arduino.cc/en/Tutorial/Fading
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For differences between Maple's pwmWrite() and Arduino's analogWrite():
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http://leaflabs.com/docs/lang/api/analogwrite.html#arduino-compatibility
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*/
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int ledPin = 9; // Connect an LED to digital pin 9, or any other
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// PWM-capable pin
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void setup() {
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pinMode(ledPin, PWM); // setup the pin as PWM
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}
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void loop() {
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// Fade in from min to max in increments of 1280 points:
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for (int fadeValue = 0; fadeValue <= 65535; fadeValue += 1280) {
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// Sets the value (range from 0 to 65535):
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pwmWrite(ledPin, fadeValue);
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// Wait for 30 milliseconds to see the dimming effect:
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delay(30);
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}
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// Fade out from max to min in increments of 1280 points:
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for (int fadeValue = 65535 ; fadeValue >= 0; fadeValue -= 1280) {
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// Sets the value (range from 0 to 1280):
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pwmWrite(ledPin, fadeValue);
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// Wait for 30 milliseconds to see the dimming effect:
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delay(30);
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}
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}
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