Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is the flexibility!

This Arduino-based burglar detection alarm uses a PIR sensor to detect motion. When movement is sensed, an LED lights up and a piezo buzzer sounds an alert. Ideal for security applications, this sy ...

PIR Sensor Burglar Alarm with Arduino Uno This project implements a simple burglar alarm system using a Passive Infrared (PIR) sensor and an Arduino Uno. When motion is detected by the PIR sensor, the ...

This PIR sensor based security system is designed using UM3561 IC. The proposed system mainly consists of PIR sensor, UM3561 IC, Speaker, transistors. The UM3516 IC is a Siren generator IC. Circuit ...

In this project we will learn how to interface Arduino with PIR sensor and design an arduino based motion detector project with circuit diagram and code.

In this paper, the Arduino based Intruder Detection System employing Rochelle Salt and Pyro-electric or Passive infrared (PIR) Sensor has been proposed. The proposed system employs Rochelle salt based ...

While PIR sensors can be used with Arduino and other microcontroller boards, those best-suited for hobby use are smart enough to perform simple tasks without any programming.