GPS & BeiDou GNSS Positioning Module — Multi-System, 2.5m Accuracy, ROS Support

Product Overview

With advantages of high sensitivity, low power consumption, and low cost, this module is suitable for various applications including vehicle navigation, handheld positioning, wearable devices, and robotics development.

Key Advantages

• Multi-Satellite System Joint Positioning

  Supports BDS, GPS, QZSS, and GLONASS—four major satellite navigation systems. Enables independent positioning with single system or joint positioning with any combination. Equipped with 32-channel high-sensitivity receiver for more stable and reliable positioning.

• High-Precision Positioning

  Positioning accuracy of 2.5 meters (CEP50), cold start acquisition sensitivity -148dBm, tracking sensitivity -162dBm. π-type antenna network design with 50Ω impedance matching, antenna VSWR below 1.6 for optimal reception power.

• Fast Positioning

  32 seconds cold start, fast acquisition with hot start, supports A-GNSS assisted positioning for rapid satellite signal search.

• Multiple Interface Support

  Plug-and-play USB serial port, also supports TTL serial connection. Built-in antenna detection and short-circuit protection. On-board PH2.0 serial port and USB Type-C interface.

• Comprehensive Development Examples

  Provides open-source development tutorials for 51 MCU, Arduino, STM32, Jetson Nano, Raspberry Pi, and ROS.

• Deep ROS Integration

  Supports data reading, trajectory drawing, IMU fusion, Move_Base navigation and other functions.

• Complete Coordinate System Conversion

  Provides WGS-84 → GCJ-02 → BD-09 complete coordinate system conversion solutions.

• Supporting PC Software

  GnssToolKit3 visualization tool, supporting satellite status viewing, data logging, and KML export.

Hardware Overview

Technical Specifications

Pin Definition

Key Features

• Multi-mode joint positioning and navigation with GPS, GLONASS, BeiDou

• Low power consumption / high sensitivity / low cost

• WIFI positioning in low signal areas, with A-GNSS for fast satellite search

• Latitude, longitude, and altitude positioning

• Position accuracy output

• A-GNSS assisted positioning for faster startup

• UTC time and date from satellites

• Antenna detection and short-circuit protection

• Speed information output

• Ground speed and heading speed output

• Satellite information: number of connected satellites, positions and validity

Compatibility

• Connecting to SBC or PC

  PC computer connection

  Raspberry Pi connection

• Connecting to MCU Development Boards

  Arduino connection

  STM32 connection

  51 development board connection

Technical Support

For detailed technical documentation and tutorials, please refer to our official resources. Community technical support is also available to help accelerate your project implementation.

Documents

• Arduino Example Code

• STM32 Example Code

• Python Example Code

• ROS Tutorial

• Jetson Nano Tutorial

• Raspberry Pi Tutorial

• Coordinate System Conversion Guide

• GnssToolKit3 Software

Part List