Product Description

The SIM808 GSM/GPRS/GPS Development Board is a versatile wireless communication and positioning solution that combines GSM, GPRS, and GPS functionality on a single module. It is designed for projects requiring cellular communication, internet data transfer, and real-time location tracking.

The GSM functionality allows the module to make and receive calls and send and receive SMS messages, while GPRS provides low-bandwidth packet data communication for IoT and remote monitoring applications. The integrated GPS receiver enables the module to receive positioning information from GPS satellites, making it suitable for tracking and location-based applications.

The development board provides convenient interfaces for connecting the module to microcontrollers, computers, and embedded systems through UART serial communication. Its integrated design simplifies prototyping by providing the necessary connectors and supporting circuitry on a single board.

The compact form factor makes the module suitable for portable and embedded applications such as vehicle tracking, asset monitoring, fleet management, personal tracking, GPS-based projects, and IoT systems.

An appropriate external antenna is required for reliable GSM/GPRS and GPS operation. For best results, install the antennas in suitable positions with minimal obstruction and follow the module’s technical documentation during integration.

Features

Integrated GSM, GPRS, and GPS functionality
Supports cellular voice communication
Supports SMS sending and receiving
GPRS packet data communication
Built-in GPS receiver
Provides satellite-based positioning information
Suitable for IoT applications
UART serial communication interface
Easy connection with microcontrollers and computers
Compact development-board design
Suitable for portable and embedded systems
Designed for tracking and monitoring applications
Supports location-based applications
External antenna support
Convenient for prototyping and development
Combines communication and positioning functions in one board

Specifications

Parameter	Specification
Product Type	GSM/GPRS/GPS Development Board
Module	SIM808
Cellular Functions	GSM / GPRS
Positioning	GPS
Communication Interface	UART Serial
Voice Call	Supported
SMS	Supported
GPRS Data	Supported
GPS Positioning	Supported
Antenna	External Antenna Required
Application	Tracking, IoT, Monitoring, GPS Projects
Form Factor	Compact Development Board

GSM/GPRS Functionality

The SIM808 provides cellular communication capabilities for embedded applications. With a compatible SIM card and supported cellular network, the module can be used for voice calls and SMS communication.

Its GPRS functionality enables packet-based data transmission, allowing connected devices to exchange relatively small amounts of information over a cellular network. This makes it suitable for applications such as remote monitoring, sensor data transmission, and IoT systems.

GPS Functionality

The integrated GPS receiver allows the module to obtain location information from GPS satellites. This functionality can be combined with GSM/GPRS communication to create tracking systems capable of transmitting location information to a remote server or monitoring application.

GPS data can be accessed by the connected microcontroller through the module’s serial communication interface and processed according to the requirements of the project.

Design and Construction

The SIM808 Development Board integrates the GSM/GPRS and GPS functions into a compact development platform. The board provides convenient connection points and supporting circuitry to simplify integration with microcontrollers and other embedded systems.

Its compact construction makes it suitable for portable equipment, vehicle-mounted systems, tracking devices, and prototype development.

External antennas are used to improve cellular and GPS signal reception. Proper antenna installation is important for reliable communication and positioning performance.

Working Principle

The module uses the cellular network for GSM voice, SMS, and GPRS data communication, while its integrated GPS receiver receives signals from navigation satellites to determine the device’s position.

A microcontroller or computer can communicate with the module through the UART interface. Commands and data can be exchanged through the serial connection to control GSM/GPRS functions and obtain GPS information.

For example, a tracking system can acquire the current GPS coordinates and then use GPRS to transmit those coordinates to a remote server. This allows the module to provide both location detection and wireless data communication in a single solution.

Applications

GPS tracking systems
Vehicle tracking
Fleet monitoring
Asset tracking
Personal tracking devices
Location-based services
IoT applications
Remote monitoring systems
GPS data logging
GSM-based automation
SMS alert systems
GPRS data transmission
Security systems
Smart transportation
Logistics monitoring
Embedded navigation projects
Remote sensor monitoring
Portable communication devices
Arduino GPS projects
Microcontroller-based tracking systems

Antenna Requirement

The module requires suitable external antennas for reliable GSM/GPRS and GPS operation. The appropriate antenna should be selected according to the module’s supported interfaces and frequency requirements.

For improved performance, position the antennas away from large metal objects, sources of electromagnetic interference, and other obstructions whenever possible.

Serial Communication

The SIM808 development board communicates with external controllers through a UART serial interface. This allows it to be connected to Arduino boards, microcontrollers, single-board computers, and other systems with compatible serial communication.

The serial interface can be used to send commands to the module and receive responses, GSM information, and GPS data.

Package Includes

1 × SIM808 GSM/GPRS/GPS Development Board
1 × GPS Antenna

Other accessories are not included unless specifically mentioned in the package contents.

Product Disclaimer

Product images are for representation purposes only. The actual product may vary slightly in PCB colour, component placement, connectors, antenna type, or overall appearance depending on the manufacturing batch.

Cellular communication depends on the availability of a compatible SIM card and supported network service in your region. Network availability and supported technologies may vary by location and operator.

GPS performance depends on satellite visibility, antenna placement, environmental conditions, and installation location.

Please refer to the module’s technical documentation for detailed electrical specifications, pin configuration, AT commands, communication protocols, antenna requirements, and integration guidelines before use.

FAQs

1. What is the SIM808 Development Board?

The SIM808 Development Board is an integrated GSM, GPRS, and GPS communication module designed for IoT, tracking, monitoring, and embedded projects.

2. What functions does the SIM808 support?

It supports GSM voice calls, SMS, GPRS data communication, and GPS positioning.

3. Can the SIM808 make phone calls?

Yes. With a compatible SIM card and cellular network, it can make and receive voice calls.

4. Can it send and receive SMS?

Yes. The module supports SMS sending and receiving through the GSM network.

5. Does the module support GPS?

Yes. It has an integrated GPS receiver for obtaining location and positioning information.

6. Can GPS data be sent to a remote server?

Yes. GPS coordinates can be obtained through the serial interface and transmitted to a remote server using GPRS data communication.

7. What communication interface does the module use?

The module communicates with microcontrollers and computers through a UART serial interface.

8. Can I use it with Arduino?

Yes. The SIM808 can be integrated with Arduino and other compatible microcontrollers through UART communication.

9. Is an antenna required?

Yes. Suitable external antennas are required for reliable GSM/GPRS and GPS signal reception.

10. What type of SIM card is required?

A compatible SIM card with an active GSM/GPRS cellular service is required for cellular communication.

11. What is GPRS used for?

GPRS provides packet-based cellular data communication, making it useful for IoT, remote monitoring, tracking, and sensor-data applications.

12. Can this module be used for vehicle tracking?

Yes. It is well suited for vehicle tracking and fleet monitoring by combining GPS positioning with GSM/GPRS communication.

13. What other applications can use this module?

It can be used for asset tracking, GPS logging, IoT, remote monitoring, security systems, logistics, location-based services, and embedded communication projects.

14. Does the module require a computer to operate?

No. Once properly configured, it can communicate directly with a microcontroller or embedded system through UART.

15. Can the module transmit GPS coordinates automatically?

Yes. A connected controller can read the GPS coordinates and use GSM/GPRS to transmit them to another device or server.

16. Is the GPS antenna included?

Yes, the package includes 1 × GPS antenna.

17. What is included in the package?

1 × SIM808 GSM/GPRS/GPS Development Board
1 × GPS Antenna

18. Is the SIM card included?

No. The SIM card is not included.

19. Is the module suitable for IoT projects?

Yes. The combination of GPRS data communication and GPS positioning makes it suitable for many IoT and remote monitoring applications.

20. Does GPS work indoors?

GPS reception can be poor indoors or in locations with significant obstructions. For better positioning performance, use the GPS antenna with a clear view of the sky whenever possible.

21. Does the module work with every mobile network?

Operation depends on network availability, supported GSM/GPRS bands, SIM service, and the network operator in your location.

22. What precautions should be taken during installation?

Use the correct power supply, connect the appropriate antennas, insert a compatible SIM card, and follow the module's wiring and operating requirements to avoid damage or unreliable operation.

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