#include <LiquidCrystal_I2C.h>

//----------------define pin ESP8266-------------------------//
// #define LATCH_DIO D4
// #define CLK_DIO D7
// #define DATA_DIO D8
// #define LED D1
// #define BUZZER D3
// #define SW1 D5
// #define SW2 D6
// #define SW3 D0
// #define POT A0
//-----------------------------------------------------------//

//----------------define pin ESP32---------------------------//
#define LED 19
#define BUZZER 23
#define SW1 16
#define SW2 17
#define SW3 18
#define POT 0
//-----------------------------------------------------------//

//-------------------define parameter LCD--------------------//
#define I2C_ADDR 0x27
#define LCD_COLUMNS 16
#define LCD_LINES 2
//----------------------------------------------------------//

//-----------------variabel---------------------------------//
int s1 = 0;
int s2 = 0;
int s3 = 0;
int k1 = 0;
int k2 = 0;
int k3 = 0;
int menu = 0;
int data_adc = 0;
//----------------------------------------------------------//

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {
  pinMode(SW1, INPUT_PULLUP); //SW1
  pinMode(SW2, INPUT_PULLUP); //SW2
  pinMode(SW3, INPUT_PULLUP); //SW3
  pinMode(LED, OUTPUT); //LED
  pinMode(BUZZER, OUTPUT); //BUZZER
  pinMode(POT, INPUT_PULLUP); //ADC

  digitalWrite(LED, 1); //off LED at start
  digitalWrite(BUZZER, 1); //off BUZZER at start

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

  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("SIMULASI KIT PAM");
  delay(300);
  lcd.clear();
}

void loop() {
  s1 = digitalRead(SW1);
  s2 = digitalRead(SW2);
  s3 = digitalRead(SW3);

  data_adc = analogRead(POT);

//--------button press release SW1--------------------------//
  if(s1 == 0 && k1 == 0){
    k1 = 1;
  }
  if(s1 == 1 && k1 == 1){
    lcd.setCursor(0,1);
    lcd.print("LED On");
    digitalWrite(19,0);
    delay(2000);
    k1 = 0;
  }
  else{
    lcd.setCursor(0,1);
    lcd.print("LED Off");
    digitalWrite(19,1);
  }

//--------button press release SW2-------------------------//
  if(s2 == 0 && k2 == 0){
    k2 = 1;
  }
  if(s2 == 1 && k2 == 1){
    menu--;
    k2 = 0;
  }

  if(menu > 3){
    menu = 0;
  }
  
  if(menu < 0){
    menu = 0;
  }


  if(menu == 0){
    //HOME
    lcd.setCursor(0, 0);
    lcd.print("------HOME------");
    lcd.setCursor(0, 1);
    lcd.print("----------------");
  }

  if(menu == 1){
    //MENU 1
    lcd.setCursor(0, 0);
    lcd.print("-----MENU 1-----");
    lcd.setCursor(0, 1);
    lcd.print("---SW3 for LED--");
    //--------button press release SW3--------------------//
    if(s3 == 0){
      digitalWrite(LED, 0);
    }
    else{
      digitalWrite(LED, 1);
    }
  }

  if(menu == 2){
    //MENU 2
    lcd.setCursor(0, 0);
    lcd.print("-----MENU 2-----");
    lcd.setCursor(0, 1);
    lcd.print("-SW3 for Buzzer-");
    if(s3 == 0){
      digitalWrite(BUZZER, 0);
    }
    else{
      digitalWrite(BUZZER, 1);
    }
  }

  if(menu == 3){
    //MENU 3
    lcd.setCursor(0, 0);
    lcd.print("-----MENU 3-----");
    lcd.setCursor(0, 1);
    lcd.print("isi program lain");
  }

  // lcd.setCursor(0, 0);
  // lcd.print(menu);
  // lcd.setCursor(0, 1);
  // lcd.print(data_adc);

  // Serial.println(s3);

}