Introduction: 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