int sensorValue = 0; void setup() { pinMode(8, OUTPUT); pinMode(7, OUTPUT); pinMode(6, OUTPUT); pinMode(A0,INPUT); Serial.begin(9600); } void loop() { sensorValue = analogRead(A0); Serial.println(sensorValue, DEC); if (sensorValue < 300) { digitalWrite(7,HIGH); digitalWrite(6,LOW); digitalWrite(8, LOW); } else{ digitalWrite(6,HIGH); delay(100); digitalWrite(6,LOW); delay(100); digitalWrite(8, HIGH); delay(100); digitalWrite(8,LOW); delay(100); } }