SIM900A GSM GPRS SMS Development Board STM32 Wireless Module

SIM900A GSM/GPRS SMS Development Board – STM32 Wireless Data Module

Take your electronics projects to the next level with the SIM900A GSM/GPRS SMS Development Board. Built around the reliable SIM900A chipset and compatible with STM32 microcontrollers, this compact module enables seamless wireless data transmission, SMS messaging, and GPRS connectivity — all in one easy-to-integrate board. Whether you're prototyping an IoT device, building a remote monitoring system, or experimenting with wireless communication, this development board delivers consistent performance.

Key Features

• GSM & GPRS Connectivity: Supports quad-band GSM 850/900/1800/1900 MHz for broad network compatibility.
• SMS Functionality: Send and receive SMS messages directly through the module for remote control or alert-based projects.
• GPRS Data Transmission: Enables wireless data transfer for IoT applications, sensor uploads, and remote logging.
• STM32 Compatible: Designed to work seamlessly with STM32 development environments and standard UART communication.
• Compact & Breadboard-Friendly: Space-saving design makes it easy to integrate into prototypes and custom PCB layouts.
• AT Command Support: Fully controllable via standard AT commands for flexible, straightforward programming.
• SIM Card Slot: Standard SIM card holder for quick network setup without additional hardware.
• Status LED Indicators: Onboard LEDs provide real-time feedback on power and network connection status.

What's in the Box

• 1 × SIM900A GSM/GPRS SMS Development Board

Specifications

• Chipset: SIM900A
• Communication: GSM / GPRS
• Interface: UART (AT Commands)
• Compatibility: STM32, Arduino, and other UART-capable microcontrollers
• SIM Type: Standard SIM card
• Network Bands: Quad-band 850/900/1800/1900 MHz

Perfect For

• IoT and embedded systems development
• Remote sensor monitoring and data logging
• SMS-based alert and control systems
• GPRS-connected prototypes and student projects
• Wireless communication research and education

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Frequently Asked Questions

Q: What is the SIM900A GSM GPRS SMS Development Board used for?

A: The SIM900A GSM/GPRS SMS Development Board is used for wireless communication projects involving SMS messaging, GPRS data transmission, and IoT applications. It is compatible with STM32 and other UART-capable microcontrollers, making it ideal for prototyping remote monitoring systems, alert-based devices, and connected electronics.

Q: Is the SIM900A module compatible with Arduino and other microcontrollers?

A: Yes! While the board is optimized for STM32 environments, it communicates via standard UART and AT commands, which means it is also compatible with Arduino, Raspberry Pi, and most other microcontroller platforms that support serial communication.

Q: What type of SIM card does the SIM900A development board require?

A: The SIM900A development board uses a standard (full-size) SIM card. Simply insert an active SIM card from a GSM-compatible carrier to enable voice, SMS, and GPRS data features.

Q: Does this board support data transmission as well as SMS?

A: Absolutely. In addition to SMS send/receive functionality, the SIM900A module supports GPRS-based wireless data transmission, allowing your project to upload or download data over a cellular network — perfect for IoT sensor nodes and remote logging systems.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.