SIM900A Mini V4.0 GSM GPRS Module — Wireless Data Transmission Board with Antenna

Empower Your Projects with GSM Connectivity
Stay connected anywhere with the SIM900A Mini V4.0 GSM/GPRS Module, a reliable and affordable wireless communication board designed for Arduino, Raspberry Pi, ESP32, and other microcontrollers. Perfect for IoT developers, robotics enthusiasts, and DIY makers, this module allows your project to send and receive SMS, make calls, or transmit data through the cellular network.

With a compact size, onboard power interface, and included antenna, the SIM900A offers strong signal stability and effortless integration — ideal for everything from remote control systems to data logging and IoT automation.

⚙️ Key Features

• Dual-Band GSM/GPRS: 900/1800 MHz — compatible with most GSM networks

• Full GSM Functionality: SMS, voice call, and GPRS data transmission

• TTL Serial Interface: Easy to connect with Arduino and other controllers

• Stable Power Design: Works at 5V with onboard voltage regulation

• High Signal Strength: Includes external antenna for reliable performance

• AT Command Control: Simple text-based configuration via serial communication

💡 Perfect For

• IoT and telemetry systems 📶

• Remote monitoring and SMS alert devices 🔔

• Robotics control via GSM networks 🤖

• Smart home automation and security 🏠

🛒 Why Makers Choose SIM900A

✅ Easy to use and widely supported
✅ Strong network signal and reliable data link
✅ Works out of the box with Arduino examples and libraries

Build smart, connected devices anywhere — add the SIM900A Mini GSM/GPRS Module to your toolkit today!