(/wiki/index.php/File:TEL0097_pin_mapping.png)
SIM808 GPS/GPRS/GSM Shield
Module interface and precautions:
1. Occupied pins: D0, D1, D12, the digital pin "D12" is connected to SIM808 module power GPIO. It can be used as SIM808 module on / off control.
2. SIM808 onboard MIC and 3.5mm SIM808 microphone are using the same MIC channel, when you plugin your microphone, the onboard MIC will be
automatically disconnected.
3. Boot switch button SIM808 module switch, shortpress 1s to start SIM808 , longpress 3s turn it off.
4. LED "ON" SIM808 power indicator, only when you connect an external power, the module can work properly.
5. Net GSM signal indicator
1. Fast Flash: Search Network
2. Slow flash (3s once): network registration complete
6. Function switch
1. None Vacant SIM808 serial pin to download the sketch, please dial to here.
2. USB_DBG When the expansion board plugged on the Arduino, dial to here to make SIM808 communicate with PC to make a debug (AT debugging).
3. Arduino When the expansion board plugged on the Arduino, dial to here to make SIM808 communicate with Arduino.
Arduino Examples
In this SIM808 Arduino Shields
tutorial we will cover how to use Arduino to drive a SIM808 GPS/GPRS/GSM Shield.
DFRobot_SIM808 is a opensource Arduino library with intuitive functions. With an array of functions packaged into a single library, you can focus on your project
and not waste time studying complex AT commands.
This tutorial includes:
Send and receive GPRS data
Receive GPS data
Send and receive SMS messages
Make and receive phone calls
Preparation
Hardware:
1 x Arduino UNO
1 x SIM808 Expansion Shield
1 x External Power Supply
1 x SIM Card
Software:
Arduino IDE Click to Download Arduino IDE from Arduino® (https://www.arduino.cc/en/Main/Software)
DFRobot_SIM808 library Click to Download DFRobot_SIM808 library (https://github.com/DFRobot/DFRobot_SIM808)
Steps:
1. Insert a SIM card in to the SIM slot on the SIM808 expansion shield
2. Stack the expansion shield on to an Arduino UNO
3. Connect an external power source to the Arduino