int sensorValue;
int delayTime = 50;
int relay = LOW;

void setup() {
  //Serial.begin(9600);
  pinMode(2, OUTPUT);
  digitalWrite(2, LOW);
  pinMode(3, INPUT);
}

void loop() {
  relay = digitalRead(3);
  sensorValue = analogRead(A0);
  delayTime = sensorValue * 2.3 + 200;
  //Serial.println(sensorValue);
  delay(delayTime);

  if (relay == HIGH) {
    digitalWrite(2, HIGH);
    delay(delayTime);
    digitalWrite(2, LOW);
  }
}