#define Idr A0
#define LED  8
int data,y;





#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C Lcd(0x27,16,2);
     void setup() {
  pinMode(LED, OUTPUT);
  Lcd.init();
  Lcd.backlight();
  Lcd.clear();
}


  



void loop() {
   data=analogRead(Idr);
 Lcd.setCursor(5,0);
  Lcd.print(data);
  y=map(data,0,1023,255,50);
  analogWrite(LED,y);
}