Data Sheet

ManualsBrandsiTead Studio ManualsCellular / GPRS / GSMITEAD SIM900 GPRS / GSM Module

GPRS Module iteadstudio.com 2011-12-06

Tech Support: support@iteadstudio.com

GPRS Module

-SIM900 GSM/GPRS Module

Overview

GPRS module is a GSM/GPRS module based on the SIM900 Quad-band

GSM/GPRS module. It is controlled via AT commands (GSM 07.07 ,07.05 and

SIMCOM enhanced AT Commands), and fully compatible with Arduino /

Iteaduino and Mega.

Features

 Quad-Band 850/900/1800/1900MHz

 GPRS multi-slot calss 10/8

 GPRS mobile station class B

 Compliant to GSM phase 2/2+

 Class 4 (2W@850/900MHz)

 Class 1 (1W@1800/1900MHz)

 Control via commands (GSM 07.07, 07.05 and SIMCOM enhanced AT

Commands)

 Short message service

 Free serial port selection

 3.5 inch standard sonic sockets for MIC and phone

 Operation temperature: -40℃ ~ +85℃

Summary of content (4 pages)

PAGE 1
Tech Support: support@iteadstudio.com GPRS Module -SIM900 GSM/GPRS Module Overview GPRS module is a GSM/GPRS module based on the SIM900 Quad-band GSM/GPRS module. It is controlled via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands), and fully compatible with Arduino / Iteaduino and Mega.
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Tech Support: support@iteadstudio.com Specifications PCB size 71.4mm X 66.0mm X 1.6mm Indicators PWR, status LED, net LED Power supply 5V Communication Protocol UART RoSH Yes Electrical Characteristics Specification Min Type Max Unit Power Voltage(Vsupply) 4.5 - 5.5 VDC Input Voltage VH: 0.7VCC - 5.5 V Input Voltage VL: -0.3 0 0.3VCC V Current Consumption(pulse) - - 2000 mA 500 mA Current Consumption(Continues) Baud rate GPRS Module 115200 iteadstudio.
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Tech Support: support@iteadstudio.com Hardware Figure 1 Top Map Interface Pin Description Rst 1 Reset the SIM900 module P 2 Power switch pin of SIM900 module Tx 3 UART data output Rx 4 UART data in DT 5 Debug UART data output DR 6 Debug UART data input - 7 GND + 8 VCC GPRS Module iteadstudio.
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Tech Support: support@iteadstudio.com Installation Power on GPRS module User can power on the GPRS module by pulling down the PWR button or the P pin of control interface for at least 1 second and release. This pin is already pulled up to 3V in the module internal, so external pull up is not necessary. When power on procedure is completed, GPRS module will send following URC to indicate that the module is ready to operate at fixed baud rate.