SIM900/SIM900A GSM/GPRS Minimum System Module

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Overview

GPRS module.jpg

GPRS module is a breakout board and minimum system of SIM900 Quad-band/SIM900A Dual-band GSM/GPRS module. It can communicate with controllers via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). This module supports software power on and reset.

Features

  • Quad-Band 850/ 900/ 1800/ 1900 MHz
  • Dual-Band 900/ 1900 MHz
  • GPRS multi-slot class 10/8GPRS mobile station class B
  • Compliant to GSM phase 2/2+Class 4 (2 W @850/ 900 MHz)
  • Class 1 (1 W @ 1800/1900MHz)
  • 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 +85 °C

IM140318001_1.jpg

Specifications

PCB size 71.4mm X 66.0mm X1.6mm
Indicators PWR, status LED, net LED
Power supply 5V
Communication Protocol UART
RoHS Yes

Electrical Characteristics

Parameter Min. Typical 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
Current Consumption (continuous) 500 mA
Baud rate 115200 bps

Hardware

GPRS module1.jpg

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

Installation

Power on GPRS module

Indicator LED and Buttons:

Note

In some countries where dual band exists, we recommend to use SIM900A to reduce costs. For the country list, please click here.

Download

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