GPS is an M5Stack Unit that integrates a AT6558 navigation chip and a MAX2659 amplification chip which is used for amplifying the antenna signal.

AT6558 is an high performance chip that supports many types of satellite navigation systems, able to receive satellite signals on 56 channels GNSS signal from 6 satellite navigation system, joint location, navigation, timing and more.

The module is able to obtain accurate global location information, quick and accurate positioning for anywhere in the city, in the canyon, under the overhead and inside the car.

The module can be widely used in vehicle monitoring, bus reporting, car navigation, onboard navigation, notebook navigation and other products.

You can plug it into port C on M5core via GROVE cable, which is a standard UART interface.

UART settings :

  • Baudrate(default: 9600bps)
  • Start bits(1 bit)
  • Stop bits(1 bit)
  • Parity(no)

Product Features

  • Support single system positioning of BDS/GPS/GLONASS satellite navigation systems, or multi-system joint positioning in any combination
  • Support D-GNSS differential positioning
  • Two Lego-compatible holes


  • 1x GPS Unit
  • 1x Grove Cable


  • Vehicle positioning and navigation
  • Smart law enforcement positioning


Resources Parameter
Positioning accuracy 2.5m
Channel 56
Positioning update frequency 1-10Hz
Maximum speed 515m/s
Maximum acceleration <= 4g
Sensitivity Tracking: -162dBm,Capture: -148dBm,Cold start: -146dBm
Start Time Cold start: 35 seconds,Warm start: 32 seconds,Hot start: 1 second
Operating temperature -40°C - 85°C
Net weight 13g
Gross weight 26g
Product Size 48*24*8mm
Package Size 67*53*12mm


download EasyLoader

1.EasyLoader is a simple and fast program burner. Every product page in EasyLoader provides a product-related case program. It can be burned to the master through simple steps, and a series of function verification can be performed. .

  1. After downloading the software, double-click to run the application, connect the M5 device to the computer through the data cable, select the port parameters, click "Burn" to start burning. (For M5StickC burning, please Set the baud rate to 750000 or 115200)
  1. Currently EasyLoader is only suitable for Windows operating system, compatible with M5 system adopts ESP32 as the control core host. Before installing for M5Core, you need to install CP210X driver (you do not need to install with M5StickC as controller) Click here to view the driver installation tutorial



GPS UnitSignal Transmitter(TXD)Signal Receiver(RXD)5VGND



To get the complete code, please click here


Feature Introduction

Get GPS information

  • get time Get local time

  • get latitude Get latitude

  • get longitude Get longitude

  • get satellite num Number of satellites acquired

  • get positioning quality Get positioning quality

  • get speed Obtain relative ground speed

  • get course Get geographic north pole location

  • set time zone Set local time zone




Indicates that the positioning information is UTC time is 06:30:12, north latitude 22.58119°, east longitude 113.95357°, date is April 24, 2019

Last updated: 2020-12-11