How to Make Smart Motion Sensor Alarm Wireless Doorbell

I have made a door alam......if someone enters the room or house, this machine will sense his motion and start playing alam....

Step 1: Components

1. Arduino UNO x1

https://www.amazon.in/Robotbanao-Atmega328p-Cable-...

2. PIR sensor x1

https://www.amazon.in/2013newestseller-HC-SR501-Py...

3. LED x1

https://www.amazon.in/SHOPEE-BRANDED-Pack-Basic-Ul...

4. battery x1

https://www.amazon.in/CREATOR-6F22-VOLTS-Power-Bat...

5. wires

https://www.amazon.in/INSTABUYZ-Flexible-Domestic-...

Step 2: Circuit

Step 3: Coding

Step 4: Video