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

Product Overview

This module features high sensitivity, low power consumption, and low cost, making it suitable for a variety of applications including vehicle navigation, handheld positioning, wearable devices, and robotics development.

Key Advantages

• Multi-Satellite System Joint Positioning

  Supports four major satellite navigation systems: BDS, GPS, QZSS, and GLONASS. Supports single-system independent positioning or any combination for joint positioning. Equipped with a 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. Features π-type antenna network design with 50Ω impedance matching, antenna VSWR below 1.6 for optimal receiving power.

• Fast Positioning

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

• Multi-Interface Support

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

• Comprehensive Development Examples

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

• Deep ROS Integration

  Supports data reading, trajectory plotting, IMU fusion, Move_Base navigation, and more.

• Complete Coordinate System Conversion

  Provides a complete WGS-84 to GCJ-02 to BD-09 coordinate system conversion solution.

• Companion PC Software

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

Hardware Overview

Technical Specifications

Pin Definitions

Key Features

• GPS, GLONASS, BeiDou multi-mode joint positioning and navigation

• Low power / high sensitivity / low cost

• WiFi positioning in low-signal areas with A-GNSS fast satellite search

• Longitude, latitude, and altitude positioning

• Positioning accuracy output

• A-GNSS assisted positioning for faster startup

• UTC time and date from satellites

• Antenna detection and short-circuit protection

• Velocity information output

• Ground speed and heading velocity output

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

Compatibility

• Connecting to SBC or PC

  PC Connection

  Raspberry Pi Connection

• Connecting to MCU Development Boards

  Arduino Connection

  STM32 Connection

  51 Dev 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.

Documentation

• Arduino Example Code

• STM32 Example Code

• Python Example Code

• ROS Tutorials

• Jetson Nano Tutorials

• Raspberry Pi Tutorials

• Coordinate System Conversion Guide

• GnssToolKit3 Software

Parts List