L76K GNSS HAT for Raspberry Pi
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£22.10
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Awesome Extras
This HAT for your Raspberry Pi supports GPS, BeiDou (BDS), GLONASS and QZSS systems, allows multi-system combined or single-system independent positioning.
The board offers fast positioning, high accuracy, and low power consumption, and supports AGNSS (Assisted GNSS), a technology that dramatically speeds up and improves satellite positioning by downloading critical orbital data via mobile networks or Wi-Fi rather than slow satellite links.
It has a built-in Low-Noise Amplifier (LNA) for improved reception sensitivity, and built-in Surface Acoustic Wave (SAW) Filter for enhanced noise reduction performance. There is a holder for an ML1220 rechargeable battery (battery not included - do not use single use batteries!), for preserving ephemeris information and hot starts. Four LEDs indicate the module operating status, and a standby mode switch.
The board comes with a separate GPS antenna (see images), riser GPIO header, Micro-USB cable and metal standoff fixings.
Raspberry Pi not included.
What's Onboard?
- L76K module
- CP2102
- CAT24C32
- RT9193-33 Power chip
- GNSS configuration button
- Standby mode switch
- Status indicators
-
Raspberry Pi 40-pin GPIO header
- USB to UART port
- GNSS antenna connector
-
Battery holder
- Supports an ML1220 rechargeable cell for preserving ephemeris information and enabling hot starts
-
UART selection jumper
- A: Control the L76K via USB to UART
- B: Control the L76K via Raspberry Pi
- C: Access the Raspberry Pi via USB to UART
Features
- Designed for Raspberry Pi (any 40-pin model i.e. Pi 5, 4, 3 etc)
- Supports GPS, BeiDou (BDS), GLONASS and QZSS
- Combined or independent positioning modes
- AGNSS support
- Built-in Low-Noise Amplifier
- Built-in SAW filter
- ML1220 rechargeable cell holder (battery not included)
- Four status LEDs
- Standby mode switch
- GPS antenna included
Specifications
| GNSS | GPS/GLONASS/BDS/QZSS |
| Chip platform | AT6558R |
| L1 band receiver channels | 32 tracking / 72 acquisition |
| SBAS | N/A |
| A-GNSS | Supported |
| Acquisition sensitivity | -148dBm |
| Re-acquisition sensitivity | -160dBm |
| Tracking sensitivity | -162dBm |
| Cold start TTFF | 30s autonomous 5.5s with AGNSS |
| Hot start TTFF | 2s |
| Position accuracy | 2.0m CEP |
| Speed accuracy | 0.1m/s |
| Maximum acceleration accuracy | 0.1m/s² |
| Timing accuracy | 30ns |
| Communication interface | UART |
| Baud rate | 4800–115200bps, 9600bps by default |
| Update rate | 1Hz default, 5Hz maximum |
| Protocols | NMEA 0183, CASIC Proprietary Communication Protocol |
| Power supply voltage | 5V |
| Overall current consumption | <55mA @ 5V, continue mode |
| Operating temperature | -40°C to 85°C |
| Dimensions | 65×30.5mm |
Resources
Pinout
Package Contents
- 1x L76K GNSS HAT for Raspberry Pi
- 1x GPS Antenna
- 1x GPIO riser header
- 1x Micro-USB cable
- 1x Fixing pack
Raspberry Pi not included
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