Description: 1. Overview: The SIM900A is a versatile GSM/GPRS module featuring an RS232 interface and an integrated SMA antenna, enabling it to transmit and receive data through cellular networks. 2. Connectivity: This module supports both 2G GSM (850/900/1800/1900 MHz) and 2G GPRS (Class 10) networks, allowing for efficient data transfer and real-time communication. 3. Communication: Using its RS232 interface, the SIM900A can be easily connected to a microcontroller or computer system for controlling and monitoring applications in various IoT projects. 4. Integrated Features: The module comes with an integrated TCP/IP stack, HTTP server, and a built-in SMS gateway for advanced communication features and functionality. 5. Operating Temperature: Operating temperature ranges from -20°C to +70°C (-4°F to 158°F), making it suitable for use in a wide range of environments. 6. Power Consumption: The SIM900A has low power consumption, with typical standby mode at less than 30mA and maximum active mo
| Specification | Details |
|---|---|
| Specification | Detail |
| Module Type | Quad-Band GSM/GPRS Module |
| Frequency Range | 850 900 1800 1900 MHz |
| GSM Class | Class 4 (2W) |
| GPRS Class | Class 12 |
| Data Rate | Up to 85.6 kbps |
| RS232 Interface | Yes with TTL level |
| SMA Antenna Connector | Yes |
| Operating Voltage | 3.4 - 4.5 V (Typical) 2.9 - 4.7 V (Min) |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Power Consumption | Typical: 1.6 mA (RX/TX) Max: 5 mA |
| Dimensions | 32 x 21 mm |
| Weight | approximately 15 grams |
| Operating System | SIM900A has a built-in AT Command Set |
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