LC29H(DA) GPS/RTK HAT for Raspberry Pi

This LC29H(DA) HAT has L1+L5 dual-frequency and multi-GNSS signal tracking, significantly reducing multipath effects in urban environments and strengthening positioning accuracy with low power consumption. Equipped with a built-in LNA and SAW filter, it has high sensitivity and strong anti-interference capability. Utilising dual-band positioning and RTK technology, it provides centimetre-level high-precision positioning, making it ideal for real-time tracking systems and sharing economy applications, including drones, smart farm machinery, and shared two-wheelers. It supports fast convergence dual-band RTK centimetre-level positioning for high-precision terminal device applications.

The HAT features a standard Raspberry Pi 40-pin GPIO extension header, providing compatibility with Raspberry Pi series boards and Jetson Nano. It supports simultaneous tracking of L1+L5 dual-band satellite signals, reducing multipath effects and enhancing positioning accuracy in urban canyons. It also supports concurrent reception of multi-GNSS systems (GPS, BDS, GLONASS, Galileo, and QZSS) while maintaining low power consumption. The built-in low noise amplifier and acoustic surface filter deliver -165dBm high sensitivity and improved anti-interference performance. Comprehensive online development resources and a manual with Python examples for Raspberry Pi and Jetson Nano are included to assist with development.

We also have the

• LC29H(AA) GPS HAT to improve the positioning performance of service areas
• LC29H(BS) GPS/RTK HAT to setup an RTK base station

Note: The 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 fast convergence dual-band RTK centimetre-level positioning, suitable for high-precision positioning of terminal devices
• Built-in low noise amplifier and acoustic surface filter to provide -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 provide 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

1. LC29H module
2. RT9166A-28PXL
   5V to 2.8V LDO chip
3. CP2102N
   USB to UART chip
4. Raspberry Pi 40PIN GPIO header
   For connecting with Raspberry Pi
5. 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
6. IPEX 1 connector
   LC29H module antenna connector
7. Micro USB interface
8. RT9193-33PB
   5V to 3.3V LDO chip
9. RESET button
   Reset the LC29H module
10. Status Indicators
    PWR: Power Indicator
    RXD/TXD: UART transceiver indicator
    PPS: GPS status indicator
11. NDC7002N
    I2C voltage translator
12. ML1220 Battery holder
    Supports ML1220 rechargeable cell, for preserving ephemeris information and hot start

Specifications

Connection Example - Raspberry Pi & GPS Antenna

Resources

• Product Wiki

Pinout

Package Contents

1. 1x LC29H (DA) GPS/RTK HAT
2. 1x 2 x 20-pin female header
3. 1x GPS External Antenna (D)
4. 1x IPEX 1 to SMA cable ~17cm
5. 1x Screws pack