This project is a smart security system using Arduino that integrates laser tripwire detection, password-based access via a keypad, and motion detection using a PIR sensor. It activates a buzzer alarm ...

This laser is sensed by an LDR sensor from the other end and detects the rate at which the laser blinks. The LDR sensor is connected to the Arduino which controls the alarm system. Whenever someone ...

Below you can find our actual hardware setup of the Arduino RFID Door Lock System developed by using Circuit Diagram and Pin Connection Details as a reference. We have built a lot of RFID based ...