// program 05 - pot LED LCD
// ------------------------
// nama : Isya Adelia
// kelas : RPL B
// Tanggal : 30 juli 2024


/*
Buatlah program yang hasilnya :
- LED merah hijau akan menyala jika nilai potensio antara 0-341
- LED kuning akan menyala jka nilai potensio antara 342-682
- LED hijau akan menyala jika nilai potensio antara 683-1023
*/

//Isya adelia
#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

int ledMerah = 2;
int ledKuning = 3;
int ledHijau = 4;
int Potensio = A0;

//-------------------- setup ------------------

void setup() {
  Serial.begin(115200);
  pinMode(Potensio, INPUT);
  pinMode(ledMerah, OUTPUT);
  pinMode(ledKuning, OUTPUT);
  pinMode(ledHijau, OUTPUT);
  lcd.init();
  lcd.backlight();
}

//------------------- loop --------------------

void loop() {
  int potValue = analogRead(Potensio);

  if (potValue >= 0 && potValue <= 314) {
    digitalWrite(ledMerah, HIGH);    
    digitalWrite(ledKuning, LOW);   
    digitalWrite(ledHijau, LOW); 
    lcd.setCursor(0,0);
    lcd.print(" STATUS = Merah");
    lcd.setCursor(0,1);
    lcd.print(" VALUE = ");
    lcd.print(potValue);
    lcd.print("         ");   
  } 
  else if (potValue >= 324 && potValue <= 682) {
    digitalWrite(ledMerah, LOW);    
    digitalWrite(ledKuning, HIGH);    
    digitalWrite(ledHijau, LOW);
    lcd.setCursor(0,0);
    lcd.print(" STATUS = Kuning");
    lcd.print("                 ");
    lcd.setCursor(0,1);
    lcd.print(" Value = ");
    lcd.print(potValue);
    lcd.print("         ");     
  } 
  else if (potValue >= 683 && potValue <= 1023) {
    digitalWrite(ledMerah, LOW);   
    digitalWrite(ledKuning, LOW);    
    digitalWrite(ledHijau, HIGH);
    lcd.setCursor(0,0);
    lcd.print(" STATUS = Hijau");
    lcd.setCursor(0,1);
    lcd.print(" VALUE = ");  
    lcd.print(potValue);
    lcd.print("         ");  
  }

  delay(100);
}