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authorMartin Oldfield <m@mjo.tc>2012-02-28 09:06:56 +0000
committerMartin Oldfield <m@mjo.tc>2012-02-28 09:06:56 +0000
commitc0e6db4dab5134ea0f3d6fe96c13baaab0b239ac (patch)
tree7ee460c44f1c7ad1aa5363a7d683960852e6a77e /examples/Fade/build-cli/Fade.cpp
Initial NWO check in
Diffstat (limited to 'examples/Fade/build-cli/Fade.cpp')
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1 files changed, 32 insertions, 0 deletions
diff --git a/examples/Fade/build-cli/Fade.cpp b/examples/Fade/build-cli/Fade.cpp
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+++ b/examples/Fade/build-cli/Fade.cpp
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+#include <Arduino.h>
+/*
+ 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);
+}