SIM900 GSM GPRS Module
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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SIM900 GSM GPRS Module

Available:In Stock
  • Product SKU: KG1363
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₹ 649 ₹ 899
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Highlights
  • Original, High Quality
  • KitsGuru Warranty
  • SIM900 Chipset
  • 2G GSM Support
  • SMS & GPRS
  • UART Interface
  • External Antenna
  • Easy Integration
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  • Video Support to be purchased separately
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Specification

Description

SIM900 GSM GPRS Wireless Transmission Module

The SIM900 GSM GPRS Wireless Transmission Module is a compact and reliable 2G communication solution designed for SMS, voice calls, and GPRS data transmission. Built around the proven SIM900 chipset, this module is widely used in IoT, telemetry, automation, and remote monitoring applications. Its simple UART interface and AT command support make it easy to integrate with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers.

Key Features

  • SIM900 chipset with stable GSM and GPRS connectivity
  • Supports SMS, voice calls, and GPRS data communication
  • GPRS multi-slot class 10 with data rates up to 85.6 kbps
  • UART (serial) interface with standard AT commands
  • External SMA antenna connector for improved signal strength
  • On-board SIM card holder
  • Compact PCB suitable for embedded applications
  • Low power idle mode with high-current burst transmission

Technical Specifications

  • Chipset: SIM900
  • Network Bands: GSM 850 / 900 / 1800 / 1900 MHz
  • Data Service: GPRS Class 10
  • Maximum Data Rate: 85.6 kbps (downlink)
  • Voice Support: Yes
  • SMS Support: Text & PDU mode
  • Interface: UART (Serial)
  • Operating Voltage: 3.4 V – 4.4 V (Typical 4.0 V)
  • Peak Current: Up to 2A during transmission
  • SIM Type: Standard SIM card

Interfaces & Integration

  • UART TX/RX pins for AT command communication
  • Compatible with Arduino, ESP8266, ESP32, STM32, Raspberry Pi
  • SMA connector for external GSM antenna
  • Common ground required with controller
  • Requires stable power supply capable of handling 2A peaks

Working Principle

The SIM900 module communicates using AT commands over a UART interface. After inserting a valid SIM card and connecting an external antenna, the module registers on the GSM network. Once connected, it can send and receive SMS, make voice calls, and transmit data over GPRS. The onboard RF circuitry manages cellular communication, while the host microcontroller controls operations using serial commands.

Typical Applications

  • IoT and M2M communication systems
  • Remote monitoring and telemetry
  • SMS alert and notification systems
  • Data logging and reporting
  • Security and alarm systems
  • Vehicle tracking in 2G-supported regions

Physical Attributes

  • Board Dimensions (mm): 50 × 49
  • Weight: 23g

Package Includes

  • 1 × SIM900 GSM GPRS Wireless Transmission Module
  • 1 × Antenna
  • 1 × Power Connector

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