LC29H(AA) GPS HAT for Raspberry Pi

This LC29H(AA) GPS HAT has high signal multipath effects like urban canyons, thanks to its ability to track L1+L5 dual-frequency and multi-GNSS signals, significantly upgrading positioning accuracy. It features a built-in Low Noise Amplifier (LNA) and Surface Acoustic Wave (SAW) filter, providing high sensitivity and robust anti-interference capabilities. It has dual-band positioning and Real-Time Kinematic (RTK) technology, catering to projects needing centimetre-level precision such as drones, smart agricultural machinery, and shared mobility solutions like two-wheelers. It's also good for real-time tracking systems. There is a standard Raspberry Pi 40-pin GPIO extension header, supporting Raspberry Pi series boards and the Jetson Nano. It also supports the simultaneous tracking of multiple satellite signals and systems (GPS, BDS, GLONASS, Galileo, and QZSS), all while maintaining low power consumption. It also includes support for various positioning augmentation systems like WAAS, EGNOS, MSAS, and GAGAN, which enhance service area performance. The EASY technology further allows for efficient positioning using stored ephemeris and almanac data when signals are unavailable, improving both the positioning accuracy and time to first fix. We also have the

* LC29H(BS) GPS/RTK HAT to setup an RTK base station

* 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 positioning augmentation systems (WAAS, EGNOS, MSAS and GAGAN) to improve the positioning performance of service areas

* Supports EASY technology, to realize the positioning using stored information such as ephemeris and almanac data when there is no signal, and improve the positioning and time to first fix

* 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 a 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 Supports 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) Support

RTK Function N/A

Positioning Accuracy PVT - 1m CEP

RTK - N/A

Navigation Update Rate PVT - 1~10Hz

RTK - N/A

RAW - 1Hz

RTK Convergence Time N/A

Time to First Fix (AGNSS Off) Cold Starts - 26s

Hot Starts - 1s

Aided Starts - 16s

Time to First Fix (Easy On) 2s

Time to First Fix (AGNSS ON) Cold Starts - 5s

Hot Starts - 5s

Aided Starts - 5s

Sensitivity Tracking and Navigating - 165dBm

Re-Acquisition -159dBm

Cold Starts -147dBm

Velocity Accuracy 0.2m/s

PPS Accuracy 20ns

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℃

Dimensions 65 x 30.5mm

Connection Example - Raspberry Pi & GPS Antenna

Resources

* Product Wiki

Pinout

Package Contents

* 1x LC29H (AA) GPS HAT

* 1x 2 x 20-pin female header

* 1x GPS External Antenna (D)

* 1x IPEX 1 to SMA cable ~17cm

* 1x Screws pack