Description
What it is
The SIM808 Shield is an Arduino module that allows you to add GSM, GPRS, and GPS communication features to your projects.
Features
- GSM, GPRS, and GPS Connectivity
- Compatible with Arduino
What it is for
The SIM808 Shield is useful for projects that require internet connection, SMS sending, or GPS positioning. Examples of use: create a positioning device that sends GPS coordinates to a remote server.
Tutorial: How to use SIM808 GSM / GPRS / GPS 3G Shield
The SIM808 Shield allows you to add communication and GPS positioning features to your Arduino project. Useful for projects that require internet connection, SMS sending, or GPS positioning.
What you need
- Arduino
- SIM808 Shield
- SIM card
- GSM Antenna
- Power cable
- Ground cable
Steps
- 1. Shield Installation: Make sure the Shield is compatible with your Arduino board. Connect the Shield to your Arduino.
- 2. Connection: Connect the power cable to the Arduino and to a power supply (5V). Connect the GSM antenna to the port specified on the Shield.
- 3. Configuration: Use an editor like Arduino IDE to write the code.
- 4. Base Code: Load the example code provided by the manufacturer or create your own.
- 5. SMS: Use the `sendSMS` function to send SMS. Example: `sendSMS(“9001234567”, “Hello!”);`
- 6. GPRS: Use the `connectGPRS` function to connect to the network. Example: `connectGPRS(“http://example.com”);`
- 7. GPS: Use the `getGPSData` function to get coordinates. Example: `getGPSData();`
- 8. Disconnection: Make sure to disconnect the Shield properly to avoid damage.
Example code
void sendSMS(String number, String message) { // Codice per inviare SMS }
Mini project
Create a positioning device that sends GPS coordinates to a remote server.
Common mistakes
- Do not use a power supply other than 5V.
- Make sure the antenna is well connected.
- Check the datasheet to ensure your SIM808 supports your network.
- Make sure your code properly handles connection error.
Recommended accessories
- GSM Antenna
- SIM card
- Power supply cable
- Ground cable
Frequently asked questions
What are the minimum power supply requirements?
The power supply must be 5V.
Can you use any type of SIM card?
Check the datasheet to ensure your SIM808 supports your network.
How can I verify the GPRS connection?
Use the `checkGPRS` function to verify the connection.





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