int ledRot = 10; int ledGelb = 11; int ledGruen = 12; boolean blinkmode = false; int phase = 1;// Ampelphase void setup() { // put your setup code here, to run once: pinMode(ledRot, OUTPUT); pinMode(ledGelb, OUTPUT); pinMode(ledGruen, OUTPUT); } void loop() { // put your main code here, to run repeatedly: if(blinkmode) { // Blinkmodus digitalWrite(ledRot, HIGH); digitalWrite(ledGelb, HIGH); digitalWrite(ledGruen, HIGH); delay(1500); digitalWrite(ledRot, LOW); digitalWrite(ledGelb, LOW); digitalWrite(ledGruen, LOW); delay(200); } else { // Ampelmodus printf("Phase: %d", phase); switch(phase) { case 1: // Phase rot digitalWrite(ledRot, HIGH); digitalWrite(ledGelb, LOW); digitalWrite(ledGruen, LOW); delay(1500); phase = 2; break; case 2: // Phase Rot/Gelb digitalWrite(ledRot, HIGH); digitalWrite(ledGelb, HIGH); digitalWrite(ledGruen, LOW); delay(1000); phase = 3; break; case 3: // Phase GrĂ¼n digitalWrite(ledRot, LOW); digitalWrite(ledGelb, LOW); digitalWrite(ledGruen, HIGH); delay(2000); phase = 4; break; case 4: // Phase Gelb digitalWrite(ledRot, LOW); digitalWrite(ledGelb, HIGH); digitalWrite(ledGruen, LOW); delay(1500); phase = 1; break; } } }