void setup() {
  // put your setup code here, to run once:
  pinMode (7, OUTPUT);
  pinMode (A1, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  analogRead(A1);
  digitalWrite(7,LOW);

  if (analogRead (A1) >=700){
    digitalWrite(7, HIGH);
  }
delay(200);

}