Description
Arduino-Based Laser Security Alarm – Ideal for University Projects
Selling a **fully working DIY Laser Security Alarm System**.
Perfect for:
* Home or room entry security
* School/college projects
* Hobby electronics learning
**Features:**
* Laser + LDR based intrusion detection
* Loud buzzer alert when beam is interrupted
* Arduino-controlled (code can be shared)
* Portable and easy to demonstrate
* Can be customized further by buyer
**Included:**
* Arduino UNO
* Laser module
* LDR sensor
* Buzzer
* Jumper wires
* Breadboard + basic casing
* USB cable
message for location