int a = 0; void setup() { Serial.begin(9600); } void loop() { randomSeed(analogRead(A0)); int zaehler = 0; while (a != 12) { a = random(1, 13); delay(500); Serial.println(a); zaehler = zaehler + 1; } Serial.println("Treffer!"); Serial.print("Wuerfe insgesamt: "); Serial.println(zaehler); delay(5000); a = 0; }