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GSM SIM800A GSM GPRS Module

This SIM800A mini board integrates the high-performance industrial-grade SIM800A GSM/GPRS module, operating on the 900/1800 MHz frequency bands. It supports core functions such as voice calls, SMS (including MMS), GPRS data transfer, DTMF decoding, and optional features like TTS (Text-to-Speech) and Bluetooth. The board is optimized with efficient power circuitry and a robust MICRO SIM card holder, making it suitable for industrial and DIY applications.

Package Includes:

  • 1 × SIM800A Mini GSM/GPRS Module Development Board

82.95 AED 82.95 AED Tax Included
82.95 AED Tax Included

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GSM Board

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Specifications:

  • Compatible Microcontrollers: Arduino, 51, STM32, AVR, and others
  • Frequency Band: GSM 900 / 1800 MHz
  • Power Supply: 5V–12V (1A minimum current required)
  • Temperature Range: -40°C to +85°C
  • Serial Interface: TTL level (compatible with 2.85V / 3.3V / 5V systems)
  • SIM Card Slot: Micro SIM holder
  • LED Indicators: NET LED and RING LED
  • Low Power: Standby at ~30mA, Sleep mode ~10mA
  • Communication Protocols: SMS, GPRS, MMS, DTMF, HTTP, FTP, PPP dial-up
  • Reset Pin: Included for resolving hardware hang issues
  • Supports: 2G/3G/4G Unicom or Mobile phone cards
  • Board Dimensions: 48mm (L) × 50mm (W) × 11mm (H)
  • Weight: 28g

Recommended Usage:

  • Use a CP2102 USB-TTL module for power and communication when debugging via PC
  • Monitor serial output via USB–232 for easier troubleshooting