void setup() {
  Serial.begin(115200);
  pinMode(14, INPUT);
  pinMode(2, OUTPUT);
}

void loop() {
 int a = analogRead(14);
 Serial.println(a);
 

if (a > 3000) {       
    digitalWrite(2, HIGH); 
  } else {
    digitalWrite(2, LOW); 
  delay(1000);
  }
}