RASPBERRY PI SIM900 GSM/GPRS ADD-ON

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Overview

Raspberry PI GSM Add-on is customized for Raspberry Pi interface based on SIM900 quad-band GSM/GPRS module. AT commands can be sent via the serial port on Raspberry Pi, thus functions such as dialing and answering calls, sending and receiving messages and surfing on line can be realized. Moreover, the module supports powering-on and resetting via software.

Features

  • Quad-Band 850/ 900/ 1800/ 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

Specifications

PCB size 73.8mm X 70mm X 1.6mm
Input voltage 5V
Interface UART
Baud rate 9600 (default)

Electrical characteristics

Parameter Min. Typical Max. Unit
Supply voltage - 5 5.5 VDC
Current consumption (average) - 500 - mA
Instantaneous current consumption - - 2 A

Hardware

IM131224002.jpg

Pinmap

Raspberry PI interfaces

Raspberry PI Pin N.O. Pin name Pin of SIM900 Module Description
11 GPIO0 SIM900-PWERKEY Powering-on key via software
12 GPIO1 SIM900-RST Resetting key via software
13 GPIO2 -
15 GPIO3 -
16 GPIO4 -
18 GPIO5 -
22 GPIO6 -
7 GPIO7 -
3 SDA0 -
5 SCL0 -
24 CE0 -
26 CE1 -
19 MOSI -
21 MISO -
23 SCLK -
8 TXD SIM900_RX Receiving end for SIM900 serial port
10 RXD SIM900_TX Sending end for SIM900 serial port
2 +5V -
1 +3.3V -
6 GND -

Other interfaces

Indicators

Keys

Note