LC29H(BS) GPS/RTK HAT for Raspberry Pi

This GPS/RTK HAT can track dual-frequency L1+L5 GNSS signals, substantially reducing multipath interference in urban environments and enhancing positioning accuracy. This module is compatible with Raspberry Pi series boards and Jetson Nano through its standard 40-pin GPIO extension header. It supports concurrent reception of multiple GNSS systems, including GPS, BDS, GLONASS, Galileo, and QZSS, which enables it to provide consistent and low-power consumption tracking. It has RTK technology for centimetre-level positioning accuracy, which is important for real-time tracking systems. Additionally, it includes a built-in low noise amplifier (LNA) and a surface acoustic wave (SAW) filter, which boost its sensitivity to -165dBm and strengthen its anti-interference capabilities, making it suitable for a variety of projects that require precise and reliable geolocation data. We also have the

* LC29H(AA) GPS HAT to improve the positioning performance of service areas

* LC29H(DA) GPS/RTK HAT for high-precision positioning of terminal devices

Note: Raspberry Pi boards are NOT included. Features

* Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano

* Supports simultaneous tracking of L1+L5 dual-band satellite signals, reducing multipath effects in urban canyons and improving positioning accuracy

* Supports concurrent receiving of multi-GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption

* Supports GNSS raw observation and correction data output, suitable for establishing RTK base station

* Built-in low noise amplifier and acoustic surface filter to realize -165dBm high sensitivity and enhance anti-interference performance

* Supports multi-frequency active interference cancellation, effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy

* A-GNSS (Assisted GNSS) support, reducing the time to first fix (TTFF) with cold start when powered on to 5 seconds

* Support QGNSS software, easy to set various module functions

* Onboard battery holder, supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts

* Onboard 4 LED indicators for module operating status

* Comes with online development resources and manual (Python examples for Raspberry Pi/Jetson Nano)

What's on Board

* LC29H module

* RT9166A-28PXL 5V to 2.8V LDO chip

* CP2102N USB to UART chip

* Raspberry Pi 40PIN GPIO header for connecting with Raspberry Pi

* UART selection jumper A: control the LC29H via USB to UART B: control the LC29H via Raspberry Pi C: access Raspberry Pi via USB to UART

* IPEX 1 connector LC29H module antenna connector

* Micro USB interface

* RT9193-33PB 5V to 3.3V LDO chip

* RESET button reset the LC29H module

* Status Indicators PWR: Power Indicator RXD/TXD: UART transceiver indicator PPS: GPS status indicator

* NDC7002N I2C voltage translator

* ML1220 Battery holder ML1220 rechargeable cell, for preserving ephemeris information and hot start

Specifications

Frequency Band GPS/QZSS: L1C/A, L5 BDS: B1I, B2a Galileo: E1, E5a GLONASS: L1

Number of Concurrent GNSS GPS/QZSS+BDS+Galileo+GLONASS

SBAS (WAAS, EGNOS, MSAS, GAGAN) N/A

RTK Function RTK Base

Positioning Accuracy PVT N/A

RTK N/A

Navigation Update Rate PVT N/A

RTK N/A

RAW N/A

RTK Convergence Time N/A

Time to First Fix (AGNSS OFF) Cold Starts N/A

Hot Starts N/A

Aided Starts N/A

Time to First Fix (EASY ON) N/A

Time to First Fix (AGNSS ON) Cold Starts N/A

Hot Starts N/A

Aided Starts N/A

Sensitivity Tracking and Navigating -165dBm

Re-Acquisition -159dBm

Cold Starts -147dBm

Velocity Accuracy N/A

PPS Accuracy N/A

Dynamic Performance Acceleration (Max): 4g

Altitude (Max): 10000m

Velocity (Max): 500m/s

Communication Interface UART (9600~3000000bps, 115200bps by default) I2C (Max 400KHz)

Protocol NMEA 0183 V4.10, RTCM 3.x

Power Supply 5V

Overall Current <40mA@5V (Continue mode)

Operating Temperature -40~85°C

Dimensions 65 x 30.5mm

Connection Example - Raspberry Pi

Resources

* Product Wiki

* Schematic

Pinout

Package Contents

* 1x LC29H(BS) GPS/RTK HAT

* 2x 20-pin female header

* 1x GPS External Antenna (D)

* 1x IPEX 1 to SMA cable ~17cm

* 1x Screws pack