#define LED1  13
#define LED2  12
#define LED3  11
#define LED4  10
#define LED5  9

void setup() {
  Serial.begin(115200);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);

}

void loop () {

 do{
    digitalWrite(LED1, HIGH);
    delay(500);
    digitalWrite(LED1, LOW);
    delay(500);
    while(analogRead(A0)>512);


Serial.println("OUTSIDE");
 
}

}