SIM808 shield is a GSM and GPS plus Bluetooth three-in-one function shield for Peakduino/Arduino. It is based on the latest GSM/GPS/Bluetooth(optional) module SIM808 from SIMCOM, supports GSM/GPRS Quad-Band network and combines GPS technology for satellite navigation.It has high GPS receive sensitivity with 22 tracking and 66 acquisition receiver channels. Besides, it also supports A-GPS that available for indoor localization and bluetooth 3.0.

The GPRS/GSM Shield is configured and controlled via its UART using simple AT commands. Based on the SIM900 module from SIMCOM, it is like a cell phone. Besides the communications features, the GPRS/GSM Shield has 6 GPIOs, 2 PWMs and an ADC.

The module is controlled by AT command via UART and supports 3.3V and 5V logical level.


  • Quad-band 850/900/1800/1900MHz
  • GPRS multi-slot class12 connectivity: max. 85.6kbps(down-load/up-load)
  • GPRS mobile station class B
  • Controlled by AT Command (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)
  • Supports Real Time Clock
  • Supply voltage range 5V ~ 12V
  • Integrated GPS/CNSS and supports A-GPS
  • Support Bluetooth 3.0
  • Onboard 3.0V to 5.0V logic level converter
  • Low power consumption, 1mA in sleep mode
  • Supports GPS NMEA protocol
  • Standard Micro SIM Card

For details please refer to the SIM808 SPEC_V1507 doc.


  • M2M (Machine 2 Machine) Applicatoions - To transfer control data using SMS or GPRS between two machines located at two different factories.
  • Remote control of appliances - Send SMS while you are at your office to turn on or off your washing machine at home.
  • Remote Weather station or a Wireless Sensor Network - Make it with Peakduino and create a sensor node capable of transferring sensor data (like from a weather station - temperature, humidity etc.) to a web server (like
  • Vehicle Tracking System - Install GPRS+GSM+GPS Shield in your car and publish your location live on the internet. Can be used as a automotive burglar alarm.

Shipping List:

  • Duinopeak SIM808  GPRS GSM GPS Shield  x1 
  • Active GSM antenna  x1
  • Active GPS antenna  for GPS application


  • Make sure your SIM card is unlocked.
  • The product is provided as is without an insulating enclosure. Please observe ESD precautions specially in dry (low humidity) weather.
  • The factory default setting for the GPRS Shield UART is 19200 bps 8-N-1. (Can be changed using AT commands).

Here’s a quick overview of each pin mapping:

Pin Label


Board Connection

Pin Description




SIM808 module ground (0V reference)



Arduino D4

Reset the SIM808 module



Arduino D5

Request to send



Arduino D2

Serial data input



Arduino D3

Serial data output

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Duinopeak SIM808 GPRS GSM GPS Shield for Arduino

  • Brand: Duinopeak
  • Product Code: Product
  • Availability: In Stock
  • $25.58

  • Ex Tax: $25.58

  • 10 or more $23.00

Tags: SIM808, GPRS, GSM, GPS, Shield