GPS L76X Multi-GNSS HAT for Raspberry Pi

This is a Raspberry Pi GNSS HAT from Waveshare, which supports multi-GNSS systems such as GPS, BDS and QZSS. This GPS HAT offers you the following advantages: fast positioning, high accuracy and low power consumption. 

Features:

• External GPS antenna for even better reception
• Supports multi-GNSS systems: GPS, BDS and QZSS
• EASY™, self-tracking prediction technology, helps with fast positioning
• AlwaysLocate™, intelligent control of periodic measurement for energy saving
• Supports DGPS, SBAS (WAAS/EGNOS/MSAS/GAGAN)
• UART communication baud rate: 4800 to 115200bps (9600bps standard)
• Integrated battery holder supports rechargeable ML1220 battery, for storing ephemerides
• 4x LEDs to display the module's operating status
• Good documentation and sample code available at Waveshare Wiki
• Programming examples for the following controllers available: Arduino, stm32, Jetson Nano and 

Application Examples:

• Vehicle tracking
• Asset Tracking
• Security system
• Industrial PDA
• GIS application

Documentation:

• Waveshare Wiki
• Schema
• English User Manual
• Demo Code

Connections and Functions L76X Multi-GNSS HAT:

1. L76B GPS 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 display
• PPS: GPS status display
• PWR: power display
8. Raspberry Pi GPIO port: for connecting to Raspberry Pi
9. USB TO UART port
10. GNSS antenna connection
11. Battery holder supports rechargeable ML1220 battery, to realize ephemeris information and hot starts
12. UART selection jumper:
• A: Control the L76B via USB TO UART
• B: Control the L76B via Raspberry Pi
• C: Access to Raspberry Pi via USB TO UART

Technical Details:

• Communication interface: UART
• Baud rate: 4800 to 115200bps (9600bps standard)
• Updating rate: 1Hz (standard), 10Hz (max.)
• Protocols: NMEA 0183, PMTK
• Supply voltage: 5V / 3.3V DC
• Operating current: 13mA
• Time-to-first-fix @-130dBm (EASY™ enabled):
• Cold start: <15s
• Warm start: <5s
• Hot start: <1s
• Operating temperature: -40°C to 85°C
• Dimensions: 65mm x 30.5mm
• Weight:  158g

Delivery Includes: 

• 1x GPS L76X Multi-GNSS HAT for Raspberry Pi
• 1x GPS External Antenna
• 1x USB Type A plug to Micro USB cable x1
• 1x RPi Screw Set
• 2x 20pin female header