#define LED_PIN 4 // OUT DC
#define POTENTIOMETER_PIN 2 //ANALOG 
#include <Wire.h>
#include <LiquidCrystal_I2C.h> //SDA21 SCL22
int lcdColumns = 16;
int lcdRows = 2;
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  
int potPin = 2;



void setup() {
  lcd.init(); // initialize the lcd
  lcd.backlight();
  lcd.setCursor(0, 0); //ROW 1        
  lcd.print("13. Hadisto M A"); 
  lcd.setCursor(0, 1); //ROW 2         
  lcd.print("XIII TOI 1"); 
  lcd.setCursor(11,1); //ROW 2 RESISTANCE
  lcd.print("R:"); // Print R Val
  lcd.print(analogRead(potPin)); // Print Potpin value to LCD 
  pinMode(LED_PIN, OUTPUT);
  pinMode(potPin, INPUT);
}


void loop() {
  int potentiometerValue = analogRead(POTENTIOMETER_PIN);
  int brightness = potentiometerValue / 17; //BYTE RANGE
  analogWrite(LED_PIN, brightness);
}


//Hadisto M Abadan XIII TOI-1 (06/12/22)