This is a smart irrigation system that uses a soil moisture sensor and a GSM module (SIM900A) to automate irrigation and send SMS alerts. The system controls a water pump through a relay based on soil ...

Abstract: System based on CORTEX M3 core board and high performance industrial GSM/GPRS module SIM900A as the core of design, design a kind of automatic SMS alarm smoke gas detection system. The core ...

This project aims to build a smart industrial protection system that monitors temperature, humidity, and gas leakage. The system uses a DHT22 sensor for temperature and humidity readings, a gas sensor ...

Another break-out board designed to provide easy interfacing of the well-known GSM/GPS module, SIM900A. SIM900A is a complete integrated chip for GSM/GPS modem functions. It is a dual-band GSM/GPRS ...