void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(A0, INPUT);

  pinMode(10, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int value = analogRead(A0); 
  Serial.println(value);
  delay(200);

  digitalWrite(10, LOW);

  if (analogRead(A0) >= 1000) {
    digitalWrite(10, HIGH);
  }

  delay(300);
}