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Detailed Product Description:

The SIM800L GPRS GSM Module is a compact and efficient GSM/GPRS board designed for embedded wireless communication. Powered by the SIMCom SIM800L chip, this module supports quad-band (850/900/1800/1900 MHz) frequencies, allowing it to operate globally with any GSM carrier.

It communicates with microcontrollers via TTL serial interface (UART) and supports standard AT commands for SMS messaging, phone calls, and GPRS (internet) connectivity. The module is equipped with a high-gain SMD ceramic antenna or external helical antenna, ensuring reliable wireless communication in compact projects.

Perfect for remote monitoring, GPS tracking, smart irrigation, home automation, and other IoT-based systems.

Key Features:

• GSM/GPRS Quad-Band support (850/900/1800/1900 MHz)

• Communicates via TTL serial (UART) – plug & play with Arduino

• Supports SMS, voice call, GPRS internet

• Comes with high-quality antenna (PCB or spring type)

• Compact form factor for embedded integration

• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, STM32

Technical Specifications:

How to Use with Arduino:

Power Requirements:

• Use a dedicated 4V 1A power supply

• Do not power from Arduino 5V pin (it may reset the module)

Wiring (with voltage divider for TX):

Arduino Example Code (SMS Send):

Applications:

• IoT-based SMS alert systems

• Voice call projects and home automation

• GPS tracking and vehicle telemetry

• Remote environmental sensing

• Security alarms and access control

• Smart agriculture & irrigation alerts

Package Includes:

• 1 × SIM800L GSM GPRS Module (with onboard SIM slot)

• 1 × Antenna (spring or PCB antenna)