#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27, 16, 2);//0x27 adalah alamat I2C, 16 adalah jumlah kolom, 2 adalah jumlah baris

int analogPin = A3;

int val = 0;
int data = 0;
int persenData = 0;



void setup()
{
  pinMode(analogPin,INPUT);
  pinMode(3,OUTPUT);

  //initialize lcd screen
  lcd.init();
  // turn on the backlight
  lcd.backlight();

  Serial.begin(9600);
}

void loop()
{
 val = analogRead(analogPin);
 Serial.println(val);
  
 data = map(val, 0, 1023, 0, 255); //konversi value sesuai sinyal PWM
 Serial.println(data);

 persenData = map(val, 0, 1023, 0, 100);
 Serial.println(persenData);
 
  
 if (data != 0)
 {
   analogWrite(3,data); //sinyal pwm
 }
  else if (data == 0)
  {
    analogWrite(3,LOW);//mematikan lampu
  }

 lcd.setCursor(0,0);//kolom 1, baris 1
 lcd.print("Persentase: ");
 lcd.print(persenData);
 lcd.print("%");
 lcd.print(" ");


 lcd.setCursor(0,1);//kolom 1, baris 1
 lcd.print("Input Analog");
 
 delay(200);
  
}