A Github repository for SIM900a functionalities that include receiving and sending SMS and calls

It is a Fire alarm system using GSM module Arduino based.

Sample Codes for beginners working with GSM SIM900 Modules using Arduino

This Arduino project is an emergency alert system using GPS and GSM modules. When a button is pressed, it captures the current location and sends an SMS with a Google Maps link to a predefined phone number. A buzzer activates to confirm the message was sent. The system is ideal for personal safety or emergency tracking applications.

Kraken A5/1 Cracking Project Fork

a method to encode SMS in text mode to PDU mode

Simple Arduino based mobile phone

serial2edge is an embedded software running an IoT gateway that queries a Keyence profilometer, filters the relevant data, formats them into JSON and sends them to an HTTPS server.

🚨 Arduino-based accident alert system that uses GSM triangulation (no GPS) to estimate location and send emergency notifications. Implements a unique triangular signal method for faster response in critical situations.

Arduino SIM800L unsolicited notifications handler

Using Arduino MKR GSM 1400 to view location info and weather info, send GET requests, serial Passthrough, and deep-sleep timer

ACCIDENT ALERT SYSTEM

Watering and data collection Arduino project

Using this devices any electrical appliances can be controlled from anywhere in the world through internet and gsm

This is a collection of Arduino sketches that mainly uses SIM800L GSM module.

ESP32 Setup Portal with WiFi, GSM, and OTA features