DescriptionThe Waveshare LG290P GNSS RTK Module is a compact quad-band GNSS RTK module for high-precision navigation, robotics, and surveying. It supports L1, L2, L5, and E6 frequency bands, works with GPS, BDS, GLONASS, Galileo, QZSS, and NavIC, and uses multi-frequency observations with RTK differential data for centimeter-level positioning.The LG290P GNSS RTK module provides Type-C USB-UART, UART pins, PPS output, RTK status output, SMA antenna connection, and a 2PIN JST connector for an RTC backup battery. Its castellated holes and immersion gold design make it practical for carrier boards, mobile robots, precision agriculture, mapping systems, and autonomous navigation prototypes.For embedded prototypes, the module can connect by UART to compatible host boards such as the Waveshare Industrial ESP32-S3 Control Board. For display or field-terminal experiments, an ESP32-based host such as the Waveshare ESP32-C5 LCD Development Board is also useful for NMEA/RTCM testing.Features Quad-band GNSS RTK reception with L1 + L2 + L5 + E6 support. Multi-constellation support for GPS, BDS, GLONASS, Galileo, QZSS, and NavIC. Centimeter-level RTK real-time differential positioning with RTK status reporting. Professional interference detection and cancellation for complex electromagnetic environments. Type-C port for USB-UART communication and module power supply. UART interfaces for RTCM differential input, NMEA output, and debugging. 2PIN JST connector for RTC backup battery to reduce Time to First Fix. Castellated holes for direct embedded integration. Specifications OpenELAB SKU Waveshare-33000 Official Product Name LG290P GNSS RTK Module Product Type Quad-band GNSS RTK module Frequency Bands GPS L1 C/A, L1C, L5, L2C; GLONASS L1/L2; Galileo E1/E5a/E5b/E6; BDS B1I/B1C/B2a/B2b/B2I/B3I; QZSS L1 C/A/L1C/L5/L2C/L6; NavIC L5; SBAS L1 GNSS Systems GPS, BDS, GLONASS, Galileo, QZSS, NavIC, SBAS RTK Function RTK Rover and Base Interfaces USB, UART 4800-921600bps, 460800bps default Protocols NMEA 0183 and RTCM 3.x Onboard Connectors Type-C, SMA antenna, UART SH1.0, RTC backup battery JST, PPS/RTK pins I2C Note Waveshare notes that I2C is reserved / still under development and is not currently supported for I2C communication Dimensions See official dimension drawing in the content section Weight 0.119 kg according to official package information Applications Intelligent robots and outdoor rovers that need RTK navigation. Precision agriculture, autonomous vehicles, and mapping systems. Surveying, topographic mapping, mining, and industrial positioning references. GNSS/RTK development and classroom projects with Raspberry Pi, Jetson, ESP32, or PC hosts. Product List 1 x Waveshare LG290P GNSS RTK Module 1 x active GNSS positioning antenna Matching cables/accessories according to the official included configuration Other ContentThe images below were uploaded from official Waveshare resources as WebP files for this store. They show the structure, features, interfaces, dimensions, and RTK test workflow for the Waveshare LG290P GNSS RTK Module.The overview image shows the compact LG290P board layout, Type-C connector, SMA antenna connector, JST battery connector, and castellated edge pads.This feature diagram summarizes the quad-band multi-constellation GNSS RTK design for centimeter-level positioning and stronger anti-interference performance.The interface diagram helps confirm UART, USB, PPS, RTK status, reset, battery backup, and antenna connections before integration.The resource diagram shows the main module pins and onboard connectors for embedded GNSS RTK development.The dimension drawing is useful when designing an enclosure, carrier board, or robot navigation module mount.The RTK software screen illustrates a typical QGNSS workflow for checking satellite signal and differential positioning status.Resources Waveshare LG290P GNSS RTK Module Wiki Waveshare schematic PDF LG290P GNSS protocol specification Waveshare demo files FAQDoes the LG290P module support RTK Base and Rover modes?Yes. Waveshare lists the LG290P GNSS RTK Module as supporting RTK Rover and Base use.Which GNSS systems does it support?It supports GPS, BDS, GLONASS, Galileo, QZSS, NavIC, and SBAS.Can the module be used over USB?Yes. The Type-C port supports USB-UART communication and can also provide module power.Is I2C currently supported?Waveshare notes that I2C is reserved or still under development, so USB or UART should be used for current integrations.Why does the antenna need open sky?GNSS and RTK testing depends on satellite visibility. Indoor use, rain, blockage, or poor antenna placement can increase fix time and reduce accuracy.
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