Humidity Soil Sensor

// YL-39 + YL-69 humidity sensor
byte humidity_sensor_pin = A1;
byte humidity_sensor_vcc = 6;
int value;

void setup() {
  // Init the humidity sensor board
  pinMode(humidity_sensor_vcc, OUTPUT);
  digitalWrite(humidity_sensor_vcc, LOW);
  pinMode(13, OUTPUT);
  // Setup Serial
  while (!Serial);
  delay(1000);
  Serial.begin(9600);
}

void loop() {
digitalWrite(humidity_sensor_vcc, HIGH);
  delay(500);
   value = analogRead(humidity_sensor_pin);
  digitalWrite(humidity_sensor_vcc, LOW);
  Serial.println(1023 - value);
  Serial.print("Humidity Level (0-1023): ");
//  Serial.println(read_humidity_sensor());
    if ((1023 - value) < 255) {
    digitalWrite(13, HIGH);

  } else {
    digitalWrite(13, LOW);
  }

  delay(500);
}