#define pitch 262
int led =2;
int sensor=13;
int state=LOW;
int val= 0;
int buzzer=10;

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(sensor, INPUT);
pinMode(buzzer, OUTPUT);
Serial.begin(9600);
lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  lcd.print("Security On");
}

void loop() {
  // put your main code here, to run repeatedly:
val= digitalRead(sensor);
if(val==HIGH){
  digitalWrite(led, HIGH);
  tone(buzzer,pitch);
  delay(1000);


if(state== LOW){
  //Serial.println("Motion detected!!");
  state=HIGH;
  lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  lcd.print("High RISK!!");
}
}

else{
  digitalWrite(led,LOW);
  noTone(buzzer);
  delay(2000);
  if(state==HIGH){
  Serial.println("Motion Stopped");
    lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  lcd.print("LOW RISK");
    
    
  }

}
}