Block Diagram. The security system comprises of an Arduino Uno microcontroller and a standard SIM900A based GSM/GPRS modem. The whole system can be powered from any 12VDC/2A power supply unit/battery.

This Arduino project implements a simple burglar alarm system using an Arduino Uno microcontroller, a Passive Infrared (PIR) sensor, a buzzer, and an LED. The system detects motion using the PIR ...

Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor alarm is shown in Fig. 3. It consists of a PIR motion sensor (MS1) ...

This project is done as a fulfillment to the module Embedded Systems of my degree program BSc. (Hons.) in Information Technology. This project is about a basic concept 'Burglar Alarm System' using ...