L76K GPS HAT for Raspberry Pi Multi-GNSS BDS GLONASS QZSS
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L76K GPS HAT for Raspberry Pi - Multi-GNSS GPS/BeiDou/GLONASS/QZSS
Multi-system GNSS positioning module in HAT form factor, supporting GPS, BeiDou (BDS), GLONASS, and QZSS systems. Equipped with an LNA low-noise amplifier and a SAW filter, it provides fast, accurate, and stable coordinate determination for Raspberry Pi, Jetson, and RDK platforms.
Key features:
- Raspberry Pi 40PIN GPIO header compatible with Raspberry Pi, Jetson, and RDK series.
- Multi-GNSS support: simultaneous or independent operation of GPS, BeiDou, GLONASS, and QZSS systems.
- Built-in LNA (Low-Noise Amplifier) to improve reception sensitivity.
- Integrated SAW (Sound Surface Filter) for increased noise reduction.
- AGNSS support to accelerate the first position fix (TTFF).
- UART communication with adjustable baudrate from 4800 to 115200 bps.
- ML1220 battery holder for ephemeris retention and hot starts.
- 4 LED indicators for monitoring module operating status.
- Development resources available for Raspberry Pi, Arduino, Jetson, and STM32.
Compatibility with Raspberry Pi and Jetson
The HAT uses a standard 40-pin GPIO header, allowing for direct mounting on popular single-board computers. It enables easy integration of navigation systems in mobile and industrial projects.
Device construction and component description
- L76K module
- CP2102 chip: USB-to-UART converter
- CAT24C32 memory
- RT9193-33: Power management chip
- GNSS configuration button
- Standby mode switch
- LED status indicators
- Raspberry Pi 40PIN GPIO header
- USB TO UART port
- GNSS antenna connector
- Battery holder: For ML1220 battery
- UART selection jumpers:
- A: Control L76K via USB-UART
- B: Control L76K via Raspberry Pi
- C: Access Raspberry Pi via USB-UART
Technical specification
GNSS parameters:
- Systems: GPS/GLONASS/BDS/QZSS
- Platform: AT6558R
- Channels: 32 (tracking) / 72 (acquisition)
- Sensitivity (Tracking): -162 dBm
- Sensitivity (Acquisition): -148 dBm
- Position accuracy: 2.0m CEP
- Timing accuracy: 30ns
Other:
- Interface: UART
- UART speed: 4800 ~ 115200 bps
- Refresh rate: 1Hz (default), 5Hz (max)
- Supply voltage: 5V
- Current consumption: < 55mA (continuous mode)
- Protocols: NMEA 0183
- Operating temperature: -40℃ ~ 85℃
Package contents
- L76K-GPS-HAT x1
- GPS antenna x1
- Female header 2x20PIN x1
- USB Type-A to Micro-B cable x1
- Mounting screws set x1
Safety
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