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
