int dt = 300;
int potPin = A1;
int ledPin = 2;
int potVal;


void setup() {
  // put your setup code here, to run once:
 Serial.begin(9600);
 pinMode(potPin, INPUT);
 pinMode(ledPin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

potVal= analogRead(potPin);
Serial.print(potVal);
delay(dt);

while (potVal>1000){
  digitalWrite(ledPin, HIGH);
  Serial.println(potVal);
  potVal= analogRead(potPin);
  delay(dt);
}

digitalWrite(ledPin, LOW);
Serial.println();
}