SIM900A GSM GPRS Module with Antena The SIM900A GSM GPRS Module is a highly efficient and compact solution for GSM/GPRS communication, perfect for a wide range of applications. It supports quad-band frequencies (850/900/1800/1900 MHz), ensuring robust connectivity across various regions. This module adheres to GSM 2/2 standards, featuring GPRS multi-slot class 10/8 and mobile station class B capabilities. With dimensions of 24 x 24 x 3 mm and a weight of just 3.4 g, the SIM900A module is designed for easy integration into space-constrained projects. It operates under a power supply of 3.3V to 4.5V and boasts low power consumption of just 1.0 mA in sleep mode, making it ideal for power-sensitive applications. The module is controlled via AT commands (GSM 07.07, 07.05, and SIMCOM enhanced AT command set), providing flexibility and ease of use. The accompanying board features a serial port circuit with protection, an antenna interface circuit with an SMA bend female port, and a flip SIM slot for the SIM card circuit. The board dimensions are 49mm x 47mm, with 4 fixture holes for secure mounting.
