SIM900A Module with Antenna GSM Module

Summary

The SIM900A Mini-Type GSM/GPRS Module is a compact and high-performance communication device widely used in student projects, IoT systems, GSM-based automation, security systems, and embedded applications. Equipped with a built-in dual-band 900/1800 MHz modem, this module allows your microcontroller or development board to send SMS, make calls, and connect to GPRS networks with ease.

Its lightweight, mini-size design (only 24 × 24 × 3 mm) makes it ideal for portable and low-space embedded systems. The included GSM antenna and pin header ensure better signal reception and easy integration. With low power consumption and reliable performance, this module is perfect for robotics, IoT learning, and student-level networking systems.

Key Features

1. Dual-Band GSM: 900 / 1800 MHz
2. GPRS Multi-Slot Class 10/8
3. GPRS Mobile Station Class B
4. Fully compliant with GSM Phase 2/2 standards
5. Compact Mini-Type Design: 24 × 24 × 3 mm
6. Lightweight: Only 3.4 g
7. Operates via AT Commands (GSM 07.07, 07.05