M5Stack Mini GPS/BDS Unit AT6558

This GPS Unit from M5Stack features an AT6558 navigation chip and a MAX2659 amplifier chip to boost the antenna signal. The AT6558 is very powerful, supports many types of satellite navigation systems, capable of receiving satellite signals on 56 GNSS signal channels from 6 satellite navigation systems. The module is capable of obtaining accurate location information. Thus, the exact position can be determined anywhere in the city or in a car.

This Unit communicates with the M5Core via the UART protocol and is connected to the M5Core via PORTC.


Download and Links:


UART Settings:

  • Default baud rate: 19200bps
  • Start bits(1 bit)
  • Stop bits(1 bit)
  • Parity(no)

Technical Details:

  • Positioning accuracy: 2.5 meters (CEP50, open area)
  • Channels: 56
  • Supports: GPS/GLONASS satellite navigation systems
  • Supports D-GNSS differential positioning
  • Positioning update frequency: 1-10Hz
  • Maximum altitude: 1800 m
  • Maximum speed: 515 m/s
  • Maximum acceleration: <= 4 G
  • BDS/GPS dual mode continuous operation: <23mA (@3.3V)
  • Standby: <10uA (@3.3V)
  • Sensitivity:
    • Tracking: -162dBm
    • Acquisition: -148dBm
    • Cold start: -146dBm
  • Start times:
    • Cold start: 35 seconds
    • Warm start: 32 seconds
    • Hot start: 1 second
  • Operating temperature: -40°C to 85°C
  • Interface: Grove C
  • Mounting: Two Lego compatible holes
  • Connector plug: PH2.0 4 Pin
  • Dimension: 48.2 x 24.2 x 8.2mm
  • Weight: 25g

Delivery content:

  • 1x M5Stack Mini GPS/BDS Unit AT6558
  • 1x GROVE Cable 20cm
  • 1x Storage box


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M5Stack Mini GPS/BDS Unit AT6558

  • Brand: M5Stack
  • Product Code: 420993
  • Availability: In Stock
  • CHF19.90

  • Ex Tax: CHF18.41

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Tags: GPS, UART, BDS, QZSS, Unit, UART, M5Stack, M5Unit, AT6558, MAX2659, PH2.0, U032