const int SENSOR1_PIN = 8; 
const int SENSOR2_PIN = 9;
const int SENSOR3_PIN = 10;
const int KERAN1_PIN  = 2;
const int KERAN2_PIN  = 3;
const int KERAN3_PIN  = 4;
const int AERATOR1_PIN  = 5;
const int AERATOR2_PIN  = 6;
const int AERATOR3_PIN  = 7; 

void setup() {
  Serial.begin(9600);                  // initialize serial
  pinMode(SENSOR1_PIN, INPUT_PULLUP);  // set arduino pin to input pull-up mode
  pinMode(SENSOR2_PIN, INPUT_PULLUP); 
  pinMode(SENSOR3_PIN, INPUT_PULLUP); 
  pinMode(KERAN1_PIN, OUTPUT);         // set arduino pin to output mode
  pinMode(KERAN2_PIN, OUTPUT);  
  pinMode(KERAN3_PIN, OUTPUT);
  pinMode(AERATOR1_PIN, OUTPUT);
  pinMode(AERATOR2_PIN, OUTPUT);
  pinMode(AERATOR3_PIN, OUTPUT);            
}
void loop() {
  //SENSOR 1
  int sensor1 = digitalRead(SENSOR1_PIN) ; // BACA SENSOR
  if (sensor1 == LOW) {
    Serial.println("The button is being pressed");
    digitalWrite(KERAN1_PIN, HIGH); // KERAN TERBUKA
    digitalWrite(AERATOR1_PIN, LOW);  //AERATOR MATI
  }
  else
  if (sensor1 == HIGH) {
    Serial.println("The button is unpressed");
    digitalWrite(KERAN1_PIN, LOW);  // KERAN TERTUTUP
    digitalWrite(AERATOR1_PIN, HIGH);  //AERATOR NYALA
  }

  //SENSOR 2
  int sensor2 = digitalRead(SENSOR2_PIN) ; // BACA SENSOR
  if (sensor2 == LOW) {
    Serial.println("The button is being pressed");
    digitalWrite(KERAN2_PIN, HIGH); // KERAN TERBUKA
    digitalWrite(AERATOR2_PIN, LOW);  //AERATOR MATI
  }
  else
  if (sensor2 == HIGH) {
    Serial.println("The button is unpressed");
    digitalWrite(KERAN2_PIN, LOW);  // KERAN TERTUTUP
    digitalWrite(AERATOR2_PIN, HIGH);  //AERATOR NYALA
  }

  //SENSOR 3
  int sensor3 = digitalRead(SENSOR3_PIN) ; // BACA SENSOR
  if (sensor3 == LOW) {
    Serial.println("The button is being pressed");
    digitalWrite(KERAN3_PIN, HIGH); // KERAN TERBUKA
    digitalWrite(AERATOR3_PIN, LOW);  //AERATOR MATI
  }
  else
  if (sensor3 == HIGH) {
    Serial.println("The button is unpressed");
    digitalWrite(KERAN3_PIN, LOW);  // KERAN TERTUTUP
    digitalWrite(AERATOR3_PIN, HIGH);  //AERATOR NYALA
  }
}