SIM GSM 900A GPRS Arduino Module

Note: This product comes in a different look and Antenna size. We ship it randomly.

Type-1 SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna

• Input Voltage: 5V–12V
• Communication Protocol: RS232 (Serial)
• Operating Temperature: -40°C to +85°C
• Antenna Type: SMA Connector with detachable antenna
• Network Support: GSM/GPRS with SMS, Voice, and Data

The SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna is perfect for developers, hobbyists, and engineers looking for a cost-effective and reliable solution for GSM-based projects. Its flexibility and ease of use make it a popular choice for a wide range of applications

Type-2 SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna

• Quad-Band GSM/ 850/900/1800/1900MHz
• Working Frequency: 900MHz.
• Baud Rate: 1200-115200 
• Compatible with Arduino, Raspberry Pi, ARM,
  
• Power Supply 12v 1amp to 2 amps(max.)
  
• Use in the area of full signal strength.
  
• Perfectly suited for GSM-based Microcontroller Projects (better than SIM300 and other GSM Modems)
  
• Option for connecting MIC and SPEAKER directly to GSM MODEM for calls 
  
• Supports communication through RS232 with DB9 Connector, TTL Pins, and I2C pins
  
• CALL SMS GPRS facility - MIC input, LINE input, and SPEAKER output pins

SIM900A Modem is built with Dual Band GSM-based SIM900A modem from SIMCOM and is an ultra-compact and wireless GSM module. Using this modem, you can make audio calls, send and read SMS, attend the incoming calls, etc. through simple AT commands. This is a complete GSM module in an SMT type with a very powerful single-chip. SIM 900A GSM Modem processes with serial and TTL outputs.