SIM800L GSM Module

The SIM800L GSM module is a compact and versatile GSM/GPRS module used for communication over cellular networks. It enables devices to send and receive SMS messages, make and receive voice calls, and connect to the internet using GPRS. This module is widely used in various applications including IoT projects, remote monitoring, and mobile communication.

Key Features:

• GSM/GPRS connectivity for voice, SMS, and data communication
• Supports multiple frequency bands for global compatibility
• Integrated antenna or external antenna support
• Simple AT command interface for control and configuration
• Low power consumption with various power-saving modes

Technical Specifications:

• Frequency Bands:
  • GSM 850/900/1800/1900 MHz
• GPRS:
  • Class 10 (up to 85.6 kbps download and upload)
• Power Supply:
  • Operating Voltage: 3.4V to 4.4V
  • Recommended Voltage: 4.0V
  • Power Consumption: 20mA in idle mode, up to 2A during transmission (peak)
• Communication Interface:
  • Serial UART (TX/RX) for AT command communication
• Operating Temperature Range:
  • -40°C to +85°C
• Antenna:
  • Integrated or external antenna support (depending on the module variant)
• Size:
  • Typically around 25mm x 23mm x 3mm (varies by manufacturer)

Applications:

• IoT (Internet of Things) devices
• Remote monitoring and control systems
• SMS-based applications
• GSM/GPRS-based data communication
• Voice communication applications

Usage:

1. Power the Module: Connect the module to a stable power supply within the recommended voltage range.
2. Connect to a Microcontroller: Use the UART interface to connect the SIM800L to a microcontroller or development board.
3. Insert SIM Card: Insert a compatible SIM card into the SIM slot on the module.
4. Send AT Commands: Use AT commands to configure the module, send SMS, make calls, or establish a GPRS connection.
5. Integrate Antenna: Attach the antenna (if not integrated) to ensure proper signal reception and transmission.

Caution:

• Ensure proper voltage regulation to avoid damaging the module.
• Use a high-quality antenna to improve signal strength and communication reliability.
• Follow the manufacturer’s guidelines for handling and connecting the module to avoid damage and ensure optimal performance.