//control led brightness with use of object detected sensor object near brightness high and object far led brightness low\
// program 1= brightness control of led using POT
//Program 2=distance lcd-=Ultrasonic 
//instead of pot use US
#include <LiquidCrystal.h>
#define trigPin 13
#define echoPin 12
LiquidCrystal lcd(2,5,18,19,21,22);
#define led 4
void setup()
{
  pinMode(led, OUTPUT);
  lcd.begin(16,2);
  
}