Waveshare
Waveshare L76X Multi-GNSS HAT for Raspberry Pi, GPS, BDS, QZSS
Waveshare L76X Multi-GNSS HAT for Raspberry Pi, GPS, BDS, QZSS
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Overview
1. This is a Raspberry Pi GNSS HAT which supports Multi-GNSS systems: GPS, BDS, and QZSS, with advantages such as fast positioning, high accuracy, low power consumption, and so on.
2. It is an easy way to enable global positioning function for your Raspberry Pi.
Features
1. Support Multi-GNSS systems: GPS, BDS, and QZSS
2. EASY, self track prediction technology, help quick positioning
2. AlwaysLocate, intelligent controller of periodic mode for power saving
3. Support DGPS, SBAS (WAAS/EGNOS/MSAS/GAGAN)
4. UART communication baudrate: 4800~115200bps (9600bps by default)
5. Onboard battery holder, supports ML1220 rechargeable battery, for preserving ephemeris information and hot starts
6. 4x LEDs for indicating the module working status
7. Come with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
GNSS Specifications
1. Band: GPS L1(1575.42Mhz), BD2 B1 (1561.098MHz)
- Channels: 33 tracking ch, 99 acquisition ch, 210 PRN ch
- C/A code
- SBA: WAAS, EGNOS, MSAS, GAGAN
2. Horizontal position accuracy:
- Autonomous: <2.5mCEP
3. Time-To-First-Fix @-130dBm (EASY? enabled):
- Cold starts: <15s
- Warm starts: <5s
- Hot starts: <1s
4. Sensitivity:
- Acquisition: -148dBm
- Tracking: -163dBm
- Re-acquisition: -160dBm
5. Dynamic performance:
- Altitude (max): 18000m
- Velocity (max): 515m/s
- Acceleration (max): 4G
General Specifications
1. Communication interface: UART
2. Baudrate: 4800~115200bps (9600bps by default)
3. Update rate: 1Hz (default), 10Hz (max)
4. Protocols: NMEA 0183, PMTK
5. Power supply voltage: 5V / 3.3V
6. Operating current: 13mA
7. Operating temperature: -40 degree C ~ 85 degree C
8. Dimensions: 65mm x 30.5mm
Applications
1. Vehicle tracking
2. Asset tracking
3. Security system
4. Industrial PDA
5. GIS application
What is on Board
1. L76B module
2. CP2102: USB TO UART converter
3. CAT24C32: EEPROM
4. RT9193-33: Power manager
5. Backup mode wakeup button
6. Standby switch
7. Indicators:
- RXD/TXD: UART RX/TX indicator
- PPS: GPS status indicator
- PWR: Power indicator
8. Raspberry Pi GPIO connector: For connecting with Raspberry Pi
9. USB TO UART port
10. GNSS antenna connector
11. Battery holder: Support ML1220 rechargeable battery, for preserving ephemeris information and hot starts
12. UART selection jumpers
- A: control the L76B through USB TO UART
- B: control the L76B through Raspberry Pi
- C: access Raspberry Pi through USB TO UART
Package Contents
1. L76X GPS HAT x1
2. GPS External Antenna (B) x1
3. USB type A plug to micro plug cable x1
4. RPi screws pack (2pcs) x1
5. 2x20PIN pinheader x1
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