tigoe
diff --git a/‎6-channel-LED/6-channel-LED.ino‎
Lines changed: 44 additions & 0 deletions b/‎6-channel-LED/6-channel-LED.ino‎
Lines changed: 44 additions & 0 deletions
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+int ledPins[] = {2, 3, 9, 10, 11, 12};
+int intensity = 127;
+int difference = 10;
+long lastLoopTime = 0;
+int interval = 50;
+int thisLed = 0;
+
+void setup() {
+  for (int p = 0; p < 6; p++) {
+    pinMode(ledPins[p], OUTPUT);
+  }
+  Serial.begin(9600);
+}
+
+void loop() {
+  if (millis() - lastLoopTime > interval) {
+    // increment thisLed
+    thisLed++;
+    thisLed %= 6;
+    
+    // increment intensity:
+ //   intensity += difference;
+
+    //  for a more random effect,
+    // comment out the previous line and add these lines:
+    //reset the random number generator when on the first LED:
+    if (thisLed == 0) randomSeed(millis());
+    //increment with a random number:
+    intensity += random(-difference, difference);
+
+    // if intensity gets to an extreme, reverse difference:
+    if (intensity <= 0 || intensity >= 255) {
+      difference = -difference;
+    }
+
+
+    // constrain intensity:
+    intensity = constrain(intensity, 0, 255);
+    // set LED intensity:
+    analogWrite(ledPins[thisLed], intensity);
+    // update timestamp:
+    lastLoopTime = millis();
+  }
+}