SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna

Description

1. GSM and GPRS Support: The module supports 2G GSM network connectivity, allowing for voice calls, SMS messaging, and data transmission over GPRS.
2. RS232 Interface: The RS232 serial interface simplifies the connection to microcontrollers and embedded systems, enabling seamless communication.
3. SMA Antenna Connector: The module comes with an SMA antenna connector for connecting an external antenna, ensuring reliable signal reception and transmission.
4. Quad-Band Operation: It operates on quad-band GSM frequencies, making it suitable for global use across different regions.
5. Built-in SIM Card Holder: The module features a built-in SIM card holder, accommodating a standard-sized SIM card.
6. Versatile Input Voltage: The module operates on a wide input voltage range, typically from 3.4V to 4.5V.
7. GPIO and Control Pins: It provides general-purpose input/output (GPIO) pins and control pins for configuration and control.