#include"LiquidCrystal_I2C.h"
LiquidCrystal_I2C lcdB(0x27, 16, 4);
int LED=3, BUZ=2, PIR=4,DPIR,freq;
void setup() {
  // put your setup code here, to run once:
    lcdB.init();
      lcdB.backlight();
      lcdB.print("AHMAD");
      pinMode(LED, OUTPUT);
      pinMode(BUZ, OUTPUT);
      pinMode(PIR, INPUT);

}

void suara(){
for(freq = 100; freq>=1000; freq+=200)
{tone(BUZ, freq);
delay(50);
noTone(BUZ);}
}

void loop() {
  // put your main code here, to run repeatedly:
  lcdB.setCursor(7,0);
  lcdB.print(DPIR);
  DPIR = digitalRead(PIR);
  if(DPIR == 1){
  lcdB.setCursor(0, 1);
  lcdB.backlight();
    lcdB.print("ahmad ganteng");
    digitalWrite(LED, HIGH);
    suara();
  }else{
    lcdB.noBacklight();
    digitalWrite(LED, LOW);
  }

}