#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

int sensor = 5;
int lamp = 3;
int buzz = 6;
int val;
int stat;
const float BETA = 3950;
void setup() {
  // put your setup code here, to run once:
pinMode(sensor, INPUT);
pinMode(lamp, OUTPUT);
pinMode(buzz, OUTPUT);
lcd.begin(16,2);
lcd.println("No Action Needed");
}

void loop() {
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  // put your main code here, to run repeatedly:
  val=digitalRead(sensor);
  if(val == 1){
     digitalWrite(lamp, 1);
     analogWrite(buzz, 1);
     if(stat == 0){
      lcd.clear();
      lcd.setCursor(5, 0);
      lcd.print("Alert!");
      lcd.setCursor(0, 17);
      lcd.print("Motion Detected!");
      stat = 1;
     }
  } else{
    analogWrite(buzz,0);
    digitalWrite(lamp, 0);
    delay(500);
    if(stat == 1){
      lcd.clear();
      delay(100);
      lcd.setCursor(0,0);
      lcd.print("Motion Ended!");
      delay(2000);
      lcd.clear();
      stat =0;
      delay(100);
      lcd.clear();
      lcd.print("No Action Needed");
      lcd.setCursor(0, 1);
      lcd.print(":D");
    }
  }
  
}