#include <LiquidCrystal_I2C.h>
#define TOMBOL1_PIN 32
#define TOMBOL2_PIN 33
#define TOMBOL3_PIN 25
#define RELAY1_PIN 26
#define RELAY2_PIN 27

LiquidCrystal_I2C lcd(0x27,16,2);
int status_tombol1, status_tombol2, status_tombol3;

void setup() {
  // put your setup code here, to run once:
  pinMode(TOMBOL1_PIN, INPUT_PULLUP);
  pinMode(TOMBOL2_PIN, INPUT_PULLUP);
  pinMode(TOMBOL3_PIN, INPUT_PULLUP);
  pinMode(RELAY1_PIN, OUTPUT);
  pinMode(RELAY2_PIN, OUTPUT);

  digitalWrite(RELAY1_PIN, HIGH);
  digitalWrite(RELAY2_PIN, HIGH);
  // digitalWrite(RELAY1_PIN, LOW);
  // digitalWrite(RELAY2_PIN, LOW);  

  // Serial.begin(115200);
  // Serial.println("Hello, ESP32!");

  lcd.init();
  lcd.clear();         
  lcd.backlight();      // Make sure backlight is on
  
  // Print a message on both lines of the LCD.
  lcd.setCursor(0,0);   //Set cursor to character 2 on line 0
  lcd.print("Tes Button&Relay");
  
  lcd.setCursor(0,1);   //Move cursor to character 2 on line 1
  lcd.print("  Tekan Tombol  ");
}

void loop() {
  // put your main code here, to run repeatedly:
  status_tombol1 = digitalRead(TOMBOL1_PIN);
  status_tombol2 = digitalRead(TOMBOL2_PIN);
  status_tombol3 = digitalRead(TOMBOL3_PIN);

  if(status_tombol1 == LOW) {
    delay(20);
    status_tombol1 = digitalRead(TOMBOL1_PIN);
    if(status_tombol1 == LOW) {
      // lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("> Tombol 1 Aktif");

      digitalWrite(RELAY1_PIN, LOW);
      // digitalWrite(RELAY1_PIN, HIGH);
      lcd.setCursor(0,1);
      lcd.print("> Relay 1 Aktif ");
    }
  }

  if(status_tombol2 == LOW) {
    delay(20);
    status_tombol2 = digitalRead(TOMBOL2_PIN);
    if(status_tombol2 == LOW) {
      // lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("> Tombol 2 Aktif");

      digitalWrite(RELAY2_PIN, LOW);
      // digitalWrite(RELAY2_PIN, HIGH);
      lcd.setCursor(0,1);
      lcd.print("> Relay 2 Aktif ");
    }
  }

  if(status_tombol3 == LOW) {
    delay(20);
    status_tombol3 = digitalRead(TOMBOL3_PIN);
    if(status_tombol3 == LOW) {
      // lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("> Tombol 3 Aktif");

      digitalWrite(RELAY1_PIN, HIGH);
      digitalWrite(RELAY2_PIN, HIGH);
      // digitalWrite(RELAY1_PIN, LOW);
      // digitalWrite(RELAY2_PIN, LOW);      

      lcd.setCursor(0,1);
      lcd.print("> Relay Off     ");
    }
  }  

  delay(10); // this speeds up the simulation
}