SIM900A Wireless GSM GPRS Module for Arduino, ESP32 & Raspberry Pi

The SIM900A Wireless GSM GPRS Module is a compact and reliable GSM communication module designed for SMS messaging, voice calling, and GPRS data communication. It is widely used in Arduino, ESP32, Raspberry Pi, STM32, and other microcontroller-based IoT projects. Whether you're building a home automation system, GPS tracker, remote monitoring device, SMS alert system, or industrial automation project, the SIM900A provides an affordable and efficient GSM solution.

This quad-function module supports AT commands for easy programming and integrates seamlessly with popular development boards. It is ideal for students, electronics hobbyists, engineers, researchers, and embedded system developers in Bangladesh.

The SIM900A GSM GPRS Module enables microcontrollers and embedded systems to communicate over GSM cellular networks. Using a standard SIM card, the module can send SMS, make and receive phone calls, establish GPRS internet connections, and perform remote communication tasks.

The module communicates through UART serial interface, making it compatible with Arduino UNO, Nano, Mega, ESP8266, ESP32, STM32, Raspberry Pi, PIC, AVR, and many other development platforms.

Its compact size, stable performance, low power consumption, and extensive AT command support make it one of the most popular GSM modules for IoT and embedded electronics.

Whether you're creating a smart agriculture monitoring system, industrial automation controller, vehicle tracking solution, home security alarm, GSM switch, or remote sensor network, the SIM900A delivers dependable wireless communication.

For students and engineering professionals in Bangladesh, this module offers an affordable way to learn GSM technology and develop real-world IoT applications.

Features:

• Supports GSM/GPRS communication
• Send and receive SMS
• Make and receive voice calls
• GPRS internet connectivity
• UART serial communication
• Supports standard AT Commands
• Compatible with Arduino IDE
• Works with ESP32 and ESP8266
• Compatible with Raspberry Pi
• Low power consumption
• Compact PCB design
• Built-in antenna connector
• Easy SIM card installation
• Stable network performance
• Suitable for IoT applications

Specifications:

Package Includes:

• 1 × SIM900A GSM GPRS Module
• 1 × GSM Antenna