M5Stack Mini GPS/BDS Unit (AT6558) (Grove)

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File:TArduino M5Stack Mini GPS AT6558.png

Summary

This component interfaces with the **M5Stack Mini GPS/BDS Unit (AT6558)** via a Grove UART connection. It provides comprehensive navigation and positioning data including latitude, longitude, altitude, speed, and satellite status.

Description

The **M5Stack Mini GPS/BDS Unit (AT6558)** uses the AT6558 GNSS chip to support both GPS and BDS constellations. It communicates over a Grove-compatible UART interface, outputting NMEA sentences containing navigation data. The component parses this data to extract useful information such as position, course, UTC time, and detailed satellite status.

Diagram:

Properties

  • Enabled – Enables or disables the component.
  • Base Year – Sets the base year (e.g., 2000) for correct date interpretation.

Pins

Output Pins

Course

  • Speed – Current ground speed (analog).
  • Course – Current heading or direction of travel (analog).

Location

  • Latitude – Latitude in degrees (analog).
  • Longitude – Longitude in degrees (analog).
  • Altitude – Altitude above sea level (analog).
  • Height Above WGS84 Ellipsoid – Height relative to WGS84 ellipsoid (analog).
  • Magnetic Variation – Magnetic variation in degrees (analog).

Satellites

  • Count – Number of satellites in view (unsigned).
  • Start Scan – Clock input to initiate satellite scanning.
  • Satellite Number (PRN) – Satellite ID (unsigned).
  • Elevation – Elevation angle of the satellite (analog).
  • Azimuth – Azimuth angle of the satellite (analog).
  • Signal Strength (dB) – Signal-to-noise ratio of satellite (analog).
  • Satellite Found – Digital signal indicating satellite presence.

General Outputs

  • Out – Serial text output with raw NMEA sentences.
  • Date/Time – UTC date and time.
  • Invalid – High if the received data is invalid (digital).
  • Message Error – High if a parsing error occurs (digital).
  • Mode – Current fix mode (unsigned).
  • Navigation Status – Textual navigation status.
  • Horizontal Precision – Horizontal dilution of precision (HDOP, analog).

Categories

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