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Raspberry Pi GNSS Expansion Board LG290P RTK Centimeter-Level Positioning GPS GLONASS Galileo BDS QZSS NavIC For Jetson ESP32 Arduino

$105

Brand:SpotPear
SKU:010314900000
Date:2025-11-20 11:17
No:
In Stock

LG290P Series - Quad-frequency RTK Centimeter-level Positioning GNSS Expansion BoardAdopts L1+L2+L5+E6 quad-frequency positioning technologySupports concurrent reception of multiple satellite systems


RTK Centimeter-level Positioning GNSS Module

L1+L2+L5+E6 Quad-frequency Bands | RTK Centimeter-level High-precision Positioning | Raw Observation Data Output


Product Features

The LG290P GNSS RTK Module is a multi-constellation, quad-frequency GNSS RTK module. It tracks multi-frequency signals (L1 + L2 + L5 + E6) and is compatible with satellite systems including GPS, BDS, GLONASS, Galileo, QZSS, and NavIC.Built on a high-performance GNSS SoC architecture, the module integrates in-built interference detection and suppression algorithms. It effectively mitigates multiple narrowband interference signals, maintaining high sensitivity and strong anti-interference performance even in complex electromagnetic environments. Through multi-frequency observations and RTK real-time differential algorithms, it significantly reduces multipath errors, enabling centimeter-level high-precision positioning.Featuring a stamp hole package design, the module boasts a compact size and rich interfaces for easy embedded integration. It is an ideal choice for high-precision navigation applications such as intelligent robots, precision agriculture, mining, surveying and mapping, and autonomous driving.

  • Supports multiple satellite systems including GPS / GLONASS / Galileo / BDS / QZSS / NavIC
  • Supports reception of L1 + L2 + L5 + E6 quad-frequency band signals, delivering higher positioning accuracy and stronger anti-interference capability
  • Centimeter-level RTK real-time differential positioning accuracy, enabling real-time reflection of the differential positioning status
  • Features a stamp hole immersion gold process design with a compact size, facilitating direct soldering or integration into devices via pin headers.
  • Onboard Type-C interface supports USB-UART communication and module power supply, facilitating development and debugging.
  • Onboard 2PIN JST connector enables effective reduction of Time to First Fix (TTFF) when an RTC battery is connected.
  • Onboard 3 LED indicators for easy monitoring of the module's operating status.
  • Comprehensive supporting documentation is provided (compatible with Raspberry Pi / Raspberry Pi Pico / Jetson Orin / ESP32 / Arduino).

Version Selection

Relevant Product Parameters

Product ModelLG290P GNSS
RTK Module
LC29H(AA)
GPS HAT
LC29H(DA)
GPS/RTK HAT
LC29H(BS)
GPS/RTK HAT
ZED-F9P
GPS-RTK HAT
Signal Frequency BandsGPS: 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
GPS/QZSS:L1C/A,L5
BDS:B1I,B2a
Galileo:E1,E5a
GLONASS:L1
GPS/QZSS:L1C/A,L2C
BDS:B1I,B2I
Galileo:E1B/C,E5a
GLONASS:L1OF,L2OF
Number of Concurrent Satellite Constellations5 + QZSSGPS/QZSS + BDS + Galileo + GLONASS
SBASWAAS、EGNOS、BDSBAS、MSAS、GAGAN 和 SDCMWAAS、EGNOS、MSAS 和 GAGAN-WAAS、EGNOS、MSAS 和 GAGAN
RTK FunctionRTK Rover and Base-RTK RoverRTK BaseRTK Rover and Base
Positioning AccuracyPVT0.7m CEP1m CEP-1.5m CEP
RTK0.8cm + 1ppm CEP-0.01m + 1ppm CEP-0.01m + 1ppm CEP
Update RatePVTDefault:10Hz
Max.:20Hz
1~10Hz-1~10Hz
RTK-1Hz-1~8Hz
RAW1Hz1~20Hz
RTK Convergence Time
(Tested in Open Outdoor Environments)
<5s-<10s-<10s
Time to First Fix 
(AGNSS Disabled)
Cold Start28s26s-24s
Warm Start1.7s1s-2s
Hot Start28s16s-2s
Time to First Fix (TTFF) 
(EASY Enabled)
-2s-
Time to First Fix (TTFF)
(AGNSS Enabled)
Cold Start-5s-TBD
Warm Start-5s-TBD
Assisted Start-5s-TBD
SensitivityTracking and Navigation
-160dBm-165dBm-167dBm
Reacquisition-155dBm-159dBm-157dBm-159dBm-160dBm
Cold Start-146dBm-147dBm-145dBm-147dBm-148dBm
Velocity Accuracy0.03m/s0.2m/s-0.05m/s
PPS Accuracy5ns20ns-30ns
Dynamic PerformanceAcceleration (Max):4g
Altitude (Max):10000mAltitude (Max):50000m
Velocity (Max):490m/sVelocity (Max):500m/s
Communication InterfaceUSB,UART (4800~ 921600bps  460800bps)UART (9600~3000000bps  115200bps),
I2C (Max 400KHz)
USB,UART (4800~921600bps  9600bps),I2C (Max 400KHz),SPI (5MHz)
Communication ProtocolNMEA 0183/RTCM 3.xNMEA 0183 V4.10,RTCM 3.xNMEA 0183 V4.10,UBX,RTCM 3.3
Supply Voltage5V
Total Device Current Consumption小于 100mA@5V (Continue)小于 40mA@5V (Continue)小于 120mA@5V (Continue)
Operating Temperature-40~85℃
Product Dimensions33 × 33 (mm)65 × 30.5 (mm)

Quad-band L1 + L2 + L5 + E6 Positioning Technology

 Supports simultaneous tracking of multi-band satellite signals including L1 + L2 + L5 + E6
Reduces multipath effects in urban canyons and improves positioning accuracy



RTK Rover, RTK Base Station  Centimeter-Level Positioning

Two LG290P GNSS RTK Modules are used as the RTK base station and rover respectively。

Either set up a continuously operating reference base station using the LG290P module configured in base station mode at a ground location with known fixed coordinates, or purchase RTK ground-based augmentation services. GNSS correction values are sent via the network to the LG290P rover that has uploaded rough positioning information, and the terminal device—affected by errors such as multipath refraction—performs real-time error calculation to achieve centimeter-level positioning within seconds.


Supports concurrent reception of multiple satellite systems

Supports GPS, BDS, GLONASS, Galileo, QZSS, and NavIC, while the system maintains low power consumption


Supports the SBAS Satellite-Based Augmentation System

It enables multi-satellite augmented positioning and real-time error correction, significantly improving positioning accuracy and reliability in complex environments. This product supports augmentation systems such as WAAS, EGNOS, BDSBAS, MSAS, GAGAN, and SDCM.



Compact and easy to integrate

Adopting a stamp hole design, it features a compact size, high integration, and brings out most commonly used pin interfaces, facilitating DIY and embedded integration into users' devices



Suitable for multiple programming platforms

Provides example programs and user manuals for Raspberry Pi / Raspberry Pi Pico / Jetson Orin / ESP32 / Arduino, enabling easier development and integration with strong expandability


 Application Scenarios

 Intelligent Robots, Precision Agriculture, Mining, Surveying and Mapping, Autonomous Driving


Resource Overview


The I2C interface function is still under development, and I2C communication is not supported temporarily.

Interface Definition


Hardware Connection Reference

Direct USB connection to PC / Raspberry Pi / Jetson Orin series motherboards


UART pin header or SH1.0 4PIN connector for Raspberry Pi Pico connection

UART pin header or SH1.0 4PIN connector for ESP32 and other motherboards

Product Display

Product Dimensions