Skip to content
LC29H

LC29H GNSS Module

Five variants, dual-band L1+L5 tracking, centimeter-level RTK — from consumer navigation to base station infrastructure.
Get Started Variant Matrix

Five Modules, One Family

Section titled “Five Modules, One Family”

AA — Navigation

Consumer GPS with SBAS augmentation (WAAS, EGNOS, MSAS, GAGAN) and EASY self-predicted ephemeris. 5-second cold start with AGNSS.

BA — DR + RTK

Dead Reckoning with RTK corrections. Continuous centimeter positioning through tunnels and urban canyons via IMU + CAN bus + wheel tick input.

CA — Dead Reckoning

Inertial navigation without RTK. Maintains position through GNSS outages using IMU and optional wheel tick input.

DA — RTK Rover

Fast-convergence centimeter-level RTK. Optimized for open-sky applications — drones, precision agriculture, surveying.

BS — Base Station

Fixed-installation reference station. Outputs raw GNSS observations and RTCM3 corrections. Survey-in mode for autonomous position determination.

Quick Install

Section titled “Quick Install”
Terminal window
# Run directly — no install needed
uvx lc29h --port /dev/ttyS0 info


# Or install as a persistent tool
uv tool install lc29h

Add MCP Server to Claude Code

Section titled “Add MCP Server to Claude Code”
Terminal window
claude mcp add lc29h -- uvx lc29h-mcp

At a Glance

Section titled “At a Glance”
AABACADABS
Dual-band L1+L5YesYesYesYesYes
RTK (centimeter)—Yes—Yes—
Dead Reckoning—YesYes——
SBAS / AGNSSYes————
Base Station————Yes
Best forConsumer GPSVehiclesTunnelsDronesReference

Technical Highlights

Section titled “Technical Highlights”
ParameterValue
ConstellationsGPS, GLONASS, Galileo, BeiDou, QZSS
Frequency BandsL1 C/A + L5, E1 + E5a, B1I + B2a
RTK Accuracy0.01 m + 1 ppm CEP
Cold Start26 seconds (5 sec with AGNSS)
Tracking Sensitivity-165 dBm
Update Rate1 Hz
InterfaceUART, I2C, USB (via CP2102)
Power<40 mA @ 5V continuous
Temperature-40 to +85 C