Product description: AT6668 GPS/BDS module - Unit expansion module for M5Stack development modules
Module based on AT6668 and MAX2659 navigation system . The device supports many types of satellite navigation, allows receiving signals from 50 GNSS channels from 6 satellite navigation systems. The module is able to quickly and accurately determine the position even in difficult conditions.
The module uses the UART interface for communication.
Application of the device
The module can be successfully used to monitor and report the position of a car, bus, as well as to build navigation systems. The module can determine the position based on a single reading of GPS, BD2, BD3, GLONASS, GALILEO and QZSS satellite navigation system data or on the basis of their joint readings in any combination. The module supports D-GNSS differential positioning.
Technical specification
- Accuracy: 1.5 m
- Number of supported channels: 50
- Supported satellite systems: GPS, BD2, BD3, GLONASS, GALILEO and QZSS
- System frequencies:
- BDS: B1I+B1C
- GPS/QZSS/SBAS: L1
- GALILEO: E1
- GLONASS: R1
- Update rate: 1 to 10 Hz
- Communication: UART
- Protocol: NMEA0183 4.1
- Sensitivity:
- Tracking: - 162 dBm
- Acquisition: -160 dBm
- Cold start: -148 dBM
- Time to first position:
- 28 sec (cold start)
- 2 sec (hot start)
- Power consumption: DC5V/31.64mA
- Dimensions: 48 x 24 x 8 mm
- Weight: 12.3 g
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