Description
The SIM900A GSM module is a region-optimized 2G communication solution, ideal for use in Asia, Africa, and selected European regions. It supports dual-band GSM networks and provides reliable wireless communication through SMS, voice, and GPRS data transmission. With easy integration options for popular microcontrollers and an included external antenna, this module is perfect for IoT applications, GPS tracking, smart home devices, and security systems.
Key Features
- Dual-Band GSM Support: 900/1800 MHz, optimized for Asia, Africa, and some European regions
- GPRS Data Connectivity: Supports TCP/IP, HTTP, FTP, and SMS functionalities
- Built-in SIM Card Slot: Compatible with standard 2G SIM cards for seamless mobile connectivity
- External Antenna Included: SMA connector for strong and stable signal reception
- UART Serial Communication: Works with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers
- Low Power Consumption: Operates efficiently on 4.5V – 5V DC
Specification
- Model: SIM900A
- Operating Voltage: 4.5V – 5V DC
- Communication Interface: UART (TTL) Serial
- Network Support: GSM/GPRS 2G (900/1800 MHz)
- Board Size: 50mm × 48.3mm
- Weight: 24g
- Operating Temperature: -40°C to 85°C
Application
- IoT and remote monitoring projects
- SMS-based control systems
- Smart home devices and security systems
- GPS tracking and navigation systems
- Wireless data transmission and embedded projects
Why Choose the SIM900A Module?
- Optimized for Regional GSM Networks: Ensures reliable connectivity in Asia, Africa, and select European regions
- Reliable Wireless Communication: Supports SMS, voice, and GPRS data
- Easy Integration: Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers
- Includes External Antenna: Ensures strong and stable signal reception
Note: The SIM900A is region-specific and may not work in areas limited to 850/1900 MHz bands.