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 paper represents a design and implementation of a Wireless Heart rate monitor system using ARDUINO Lilypad which is enabled with the feature of sending SOS messages or calls through GSM module.

This home security device is a sophisticated system that integrates an Arduino Uno, PIR motion sensor, buzzer, and SIM900A GSM module. The device serves as an autonomous security solution for ...

Arduino HomeSec System integrates sensors for intruder detection, distance measurement, sound monitoring, and vibration sensing. It sends SMS alerts via SIM900A GSM module, enhancing home security ...