Description

The SIM800L GPRS GSM Module is a compact and versatile solution for adding cellular connectivity to your IoT and embedded projects. It supports quad-band GSM/GPRS networks (850/900/1800/1900 MHz), enabling functionalities such as SMS messaging, voice calls, and GPRS data transmission. Amazon​

📦 Package Includes

• 1 x SIM800L GPRS GSM Module
• 1 x Wire Antenna (soldered directly to the NET pin)
• 1 x PCB Antenna with IPX connector and adhesive backing​

⚙️ Key Features

• Quad-Band GSM/GPRS Support: Operates on 850/900/1800/1900 MHz frequencies, ensuring global compatibility.
• Micro SIM Card Slot: Accommodates standard micro SIM cards for cellular network access.
• TTL Serial Interface: Facilitates easy integration with microcontrollers like Arduino and ESP32 without the need for level shifters.
• Dual Antenna Options:
  • Wire Antenna: Compact and suitable for space-constrained applications.
  • PCB Antenna: Offers better performance and can be positioned externally when the module is enclosed in a metal case.
• Low Power Consumption: Consumes less than 1mA in sleep mode, making it ideal for battery-powered applications.
• AT Command Support: Compatible with standard AT commands for configuration and control.​iFuture TechnologyAmazon

📐 Technical Specifications

• Operating Voltage: 3.4V to 4.4V DC (recommended 3.7V)
• Current Consumption:
  • Sleep Mode: <1mA
  • Idle Mode: ~7mA
  • Transmission: ~200mA
• Data Rates: GPRS multi-slot class 12, up to 85.6 kbps (downlink)
• Interface: UART (TTL serial)
• Dimensions: Approximately 27mm x 25mm
• Operating Temperature Range: -40°C to +85°C​ESP32 Tools & Projects+3iFuture Technology+3Faranux Electronics+3KitsGuru

🛠️ Applications

• IoT Devices: Enable remote monitoring and control via cellular networks.
• Remote Data Logging: Collect and transmit data from sensors in remote locations.
• SMS and Voice Communication: Implement SMS-based alerts or voice call functionalities.
• GPS Tracking Systems: Combine with GPS modules for location tracking solutions.
• Home Automation: Control home appliances and systems remotely.
• Security Systems: Receive alerts and monitor security systems via SMS or calls.​

⚠️ Important Notes

• Voltage Compatibility: Ensure the module is powered with a voltage between 3.4V and 4.4V DC. Exceeding this range may damage the module.
• Logic Level Shifting: When interfacing with 5V microcontrollers like Arduino Uno, use a voltage divider or level shifter on the RX pin to prevent damage.
• Antenna Placement: For optimal performance, especially when using the PCB antenna, ensure it is positioned outside any enclosures, particularly metal ones.​