const int redPin = 2; const int grnPin = 1; const int bluPin = 0; void setup() { pinMode(redPin, OUTPUT); pinMode(grnPin, OUTPUT); pinMode(bluPin, OUTPUT); } void loop() { redtoyellow(); yellowtogreen(); greentocyan(); cyantoblue(); bluetomajenta(); majenatored(); delay (30); } void redtoyellow() { digitalWrite(redPin, HIGH); digitalWrite(bluPin, LOW); // fade up green for(byte i=1; i<100; i++) { byte on = i; byte off = 100-on; for( byte a=0; a<100; a++ ) { digitalWrite(grnPin, HIGH); delayMicroseconds(on); digitalWrite(grnPin, LOW); delayMicroseconds(off); } } } void yellowtogreen() { digitalWrite(grnPin, HIGH); digitalWrite(bluPin, LOW); // fade down red for(byte i=1; i<100; i++) { byte on = 100-i; byte off = i; for( byte a=0; a<100; a++ ) { digitalWrite(redPin, HIGH); delayMicroseconds(on); digitalWrite(redPin, LOW); delayMicroseconds(off); } } } void greentocyan() { digitalWrite(grnPin, HIGH); digitalWrite(redPin, LOW); // fade up blue for(byte i=1; i<100; i++) { byte on = i; byte off = 100-on; for( byte a=0; a<100; a++ ) { digitalWrite(bluPin, HIGH); delayMicroseconds(on); digitalWrite(bluPin, LOW); delayMicroseconds(off); } } } void cyantoblue() { digitalWrite(bluPin, HIGH); digitalWrite(redPin, LOW); // fade down green for(byte i=1; i<100; i++) { byte on = 100-i; byte off = i; for( byte a=0; a<100; a++ ) { digitalWrite(grnPin, HIGH); delayMicroseconds(on); digitalWrite(grnPin, LOW); delayMicroseconds(off); } } } void bluetomajenta() { digitalWrite(bluPin, HIGH); digitalWrite(grnPin, LOW); // fade up red for(byte i=1; i<100; i++) { byte on = i; byte off = 100-on; for( byte a=0; a<100; a++ ) { digitalWrite(redPin, HIGH); delayMicroseconds(on); digitalWrite(redPin, LOW); delayMicroseconds(off); } } } void majenatored() { digitalWrite(redPin, HIGH); digitalWrite(grnPin, LOW); // fade down blue for(byte i=1; i<100; i++) { byte on = 100-i; byte off = i; for( byte a=0; a<100; a++ ) { digitalWrite(bluPin, HIGH); delayMicroseconds(on); digitalWrite(bluPin, LOW); delayMicroseconds(off); } } }