Details
Centimeter-Level Positioning GPS Module
Dual-band L1+L5 | RTK centimeter-level Accuracy | Raw Observation data output
The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption. With built-in LNA and SAW filter to achieve high sensitivity and strong anti-interference capability. Adopts dual-band positioning and RTK technology to meet the need of centimeter-level high-precision positioning. Ideal for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart farm machinery, shared two-wheelers, etc.
- 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
- LC29H(AA) GPS HAT with the following features:
- 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
- LC29H(DA) GPS/RTK HAT with the following features:
- Supports fast convergence dual-band RTK centimeter-level positioning, suitable for high-precision positioning of terminal devices
- LC29H(BS) GPS/RTK HAT with the following features:
- 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)
LC29H(AA) GPS HAT
Supports positioning augmentation system and EASY technology
LC29H(DA) GPS/RTK HAT
Supports RTK Rover to realize high-precision centimeter-level positioning
LC29H(BS) GPS/RTK HAT
Supports RTK Base, can establish a base station to transmit correction data
| Product | LC29H(AA) GPS HAT | LC29H(DA) GPS/RTK HAT | LC29H(BS) GPS/RTK HAT | ZED-F9P GPS-RTK HAT | |
|---|---|---|---|---|---|
| Frequency band | GPS/QZSS: L1C/A, L5 BDS: B1I, B2a Galileo: E1, E5a GLONASS: L1 |
GPS/QZSS: L1C/A, L2C BDS: B1I, B2I Galileo: E1B/C, E5a GLONASS: L1OF, L2OF |
|||
| NUMBER OF CONCURRENT GNSS | GPS/QZSS+BDS+Galileo+GLONASS | ||||
| SBAS (WAAS, EGNOS, MSAS, GAGAN) | support | - | support | ||
| RTK Function | - | RTK Rover | RTK Base | RTK Rover and Base | |
| Positioning Accuracy | PVT | 1m CEP | - | 1.5m CEP | |
| RTK | - | 0.01m+1ppm CEP | - | 0.01m+1ppm CEP | |
| Navigation Update Rate | PVT | 1~10Hz | - | 1~10Hz | |
| RTK | - | 1Hz | - | 1~8Hz | |
| RAW | 1Hz | 1~20Hz | |||
| RTK Convergence Time | - | <10s | - | <10s | |
| Time to first fix (AGNSS Off) | Cold starts | 26s | - | 24s | |
| Hot starts | 1s | - | 2s | ||
| Aided starts | 16s | - | 2s | ||
| Time to first fix (EASY on) | 2s | - | |||
| Time to first fix (AGNSS On) | Cold starts | 5s | - | TBD | |
| Hot starts | 5s | - | TBD | ||
| Aided starts | 5s | - | TBD | ||
| Sensitivity | Tracking and navigating | -165dBm | -167dBm | ||
| Re-acquisition | -159dBm | -157dBm | -159dBm | -160dBm | |
| Cold starts | -147dBm | -145dBm | -147dBm | -148dBm | |
| Velocity accuracy | 0.2m/s | - | 0.05m/s | ||
| PPS accuracy | 20ns | - | 30ns | ||
| Dynamic performance | Acceleration (Max): 4g | ||||
| Altitude (Max)：10000m | Altitude (Max)：50000m | ||||
| Velocity (Max): 500m/s | |||||
| Communication interface | UART(9600~3000000bps, 115200bps by default), I2C(Max 400KHz) |
USB, UART(4800~921600bps, 9600bps by default), I2C(Max 400KHz), SPI(5MHz) | |||
| Protocol | NMEA 0183 V4.10, RTCM 3.x | NMEA 0183 V4.10，UBX, RTCM 3.3 | |||
| Power supply | 5V | ||||
| Overall Current | <40mA@5V (Continue mode) | ||||
| Operating temperature | -40~85℃ | ||||
| Dimensions | 65×30.5mm | ||||
Compatible with Raspberry Pi series boards
Working With Raspberry Pi Zero
Working with Raspberry Pi 4B
* for reference only, the Raspberry Pi boards are NOT included.
Supports simultaneous tracking of L1+L5 dual-band satellite signals
reducing multipath effects in urban canyons and improving positioning accuracy
Centimeter positioning
The LC29H(BS) module is used as an RTK Base Station, while the LC29H(DA) module is used as an RTK Mobile Station
By setting up continuous running reference stations on the ground known fixed coordinates using the LC29H (BS) module, or by paid RTK base station enhanced services, transmitting GNSS calibration value to LC29H (DA) terminals which uploading rough positioning data, the terminals, with errors like multipath refraction, is able to calculate error value in real time, for centimeter-level positioning in seconds.
Supports GPS, BDS, GLONASS, Galileo, QZSS
and still retains low power consumption
Interference Cancellation
effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy
reducing the time to first fix (TTFF) with cold start when powered on to 5 seconds
Ideal for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart farm machinery, shared two-wheelers, etc.
- 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
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Quick Overview
- OPTIONS LC29H GPS HAT x1
- 2x20PIN female header x1
- GPS External Antenna (D) x1
- IPEX 1 to SMA cable ~17cm x1
- Screws pack x1
