SIM900 Module 4 Frequency Development Board GSM GPRS Wireless Data

The SIM900 Module is a quad-band GSM/GPRS development board that allows for wireless communication via GSM networks. It supports voice calls, SMS, and GPRS data transmission, making it ideal for a variety of applications such as remote monitoring, IoT projects, and mobile communication systems. This module is easy to integrate with microcontrollers and other control systems, providing a robust solution for wireless data communication.

Technical Specifications:

• Model: SIM900
• Frequency Bands: Quad-band 850/900/1800/1900 MHz
• GPRS: Multi-slot class 10/8
• Output Power:
  • Class 4 (2W) at 850/900 MHz
  • Class 1 (1W) at 1800/1900 MHz
• Operating Voltage: 3.4V to 4.5V
• Current Consumption: 1.5mA (sleep mode), 20mA (idle mode), 200mA (GPRS transmission), 2A (peak)
• Communication Interface: UART (3.3V TTL)
• SIM Interface: 1.8V/3V SIM card
• Antenna Interface: SMA connector for external antenna
• Dimensions: Compact size for easy integration

Features:

• Quad-Band Support: Operates on 850/900/1800/1900 MHz frequencies, making it compatible with GSM networks worldwide.
• Voice, SMS, and Data: Supports voice calls, SMS messaging, and GPRS data transmission.
• Low Power Consumption: Efficient power management for battery-powered applications.
• UART Interface: Easy communication with microcontrollers and other control systems.
• External Antenna Support: SMA connector for reliable signal reception.
• Compact Design: Small form factor for integration into various projects.

Applications:

• IoT (Internet of Things) projects
• Remote monitoring and control
• Mobile communication systems
• GPS tracking
• Security systems
• Home automation

Usage Tips:

1. Connecting the Module:
   • Connect the VCC pin to a stable power supply (3.4V to 4.5V).
   • Connect the GND pin to the ground of your system.
   • Connect the TXD and RXD pins to the UART interface of your microcontroller (use a level shifter if necessary for 5V systems).
2. Inserting the SIM Card:
   • Insert a valid 1.8V or 3V SIM card into the SIM card slot of the module.
3. Antenna Connection:
   • Attach an external GSM antenna to the SMA connector for better signal reception.
4. Powering Up the Module:
   • Use the PWRKEY pin to turn on the module (pull the PWRKEY pin low for at least 1 second).
5. Communication:
   • Use AT commands via the UART interface to control the module and perform tasks such as making calls, sending SMS, and transmitting data.

Package includes

1 x SIM900 Module 4 Frequency Development Board GSM GPRS Wireless Data

Note: This chip is used, and its quality is not stable. Oku Electronics is not responsible for after-sale issues.