How to Make Security Alarm System At Home
Components for security Alarm Device:
1. PIR Motion Sensor Module
2. BC547 Transistor
3. 6v or 5v relay
4. Buzzer
5. On/ off switch
Circuit Diagram:
https://drive.google.com/file/d/1sLKn...
Online Buy link for PIR Sensor Module
👉For Buy in Pakistan:
https://click.daraz.pk/e/_CYXta0
👉For Buy in India:
https://dl.flipkart.com/dl/circuitcom...