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SIM900A GSM Module

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SIM900A GSM Module


SIM900A GSM Module
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Approx. Rs 1,000 / PieceGet Latest Price

We are counted as prominent name in this domain, engaged in providing supreme quality range of SIM900A GSM Module to our clients. These products are extensively used in different commercial and industrial segments for its precise, sturdy and flawless working. Furthermore, we are offering this product in bulk and at pocket friendly prices.

SIM900A TTL Modem is built with Dual Band GSM/GPRS based SIM900A modem from SIMCOM. It works on frequencies 900/ 1800 MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from 1200-115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS.

SIM900A is an ultra compact and reliable wireless module. This is a complete GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions.

SIM900A features:

  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2
  • Class 4 (2 W @850/ 900 MHz)
  • Class 1 (1 W @ 1800/1900MHz)
  • Dimensions: 24 x 24 x 3mm (Modem Only)
  • Control via AT commands (GSM 07.07 ,07.05 and
  • SIMCOM enhanced AT Commands)
  • Low power consumption: 1.5mA(sleep mode)
  • Operation temperature: -40°C to 80 °C

Specifications for Data

  • GPRS class 10:
  • max. 85.6 kbps (downlink)
  • max 42.8 kbps (uplink)
  • PBCCH (Support packet Switched Broadcast Control Channel) support
  • Coding schemes CS 1, 2, 3, 4
  • Specifications for SMS via GSM/GPRS
  • Point to point MO and MT
  • SMS cell broadcast
  • Text and PDU mode

Software features:

  • 0710 MUX protocol
  • embedded TCP/UDP protocol
  • FTP/HTTP( available at late July ,2010)
  • FOTA ( available at July ,2010)
  • MMS (available at July ,2010)
  • Embedded AT (available at Q3,2010)
  • Compatibility
  • AT cellular command interface

SIM900A TTL BOARD Features:

  • Current: 1.5amps min
  • On Board Power LED
  • On Board Network LED
  • PINOUT for TTL Serial Control (TX and RX)
  • PINOUT for DTR pin for wakeup from sleep.
  • Modem Reset PIN OUT
  • Default Baud Rate: 9600. Databits: 8, Parity: None, Stop Bit: 1
  • Board Specifications
  • Board Dimensions: 45 x 35 mm
  • Meterial: FR4
  • Board Thickness: 1.6mm
  • Finish: ENIG


  • The image below provides details of PINOUT available for the Breakout Board.


Additional Information:

  • Item Code: GSM-SIM900ATTL
  • Minimum Order Quantity: 1 Piece
  • Port of Dispatch: DTDC,DHL,FedEx
  • Production Capacity: 10000
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