void setup() {
Serial.begin(9600);
pinMode(A5, INPUT);
pinMode(7, OUTPUT);
pinMode(2, OUTPUT);


}

void loop() {
  Serial.println(analogRead(A5));
 if (analogRead(A5)<500){
  digitalWrite(7, HIGH);
  digitalWrite(2, LOW);

 }
 if (analogRead(A5)>500) {
  digitalWrite(2, HIGH);
  digitalWrite(7, LOW);
 }

}