// PROGRAM : LCD Counter via PIR sensor...
/*

 The circuit:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3
 * LCD D7 pin to digital pin 2
 * LCD R/W pin to ground
*/
 
#include<LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,4,3,2);
int S = 6;
int flag;

void setup()
{
  lcd.begin(16, 2);
  lcd.print("COUNTER");
  Serial.begin(9600);
  pinMode(S,INPUT);
}

void loop()
{
  lcd.setCursor(0, 1);
  int s1 = digitalRead(S);
  delay(1200);
  if(s1==1)
  {
      flag++;
      lcd.print(flag);
  }
}