M5Stack Mini GPS/BDS Unit (AT6558)


Description

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)

Features

  • Support single system positioning of BDS/GPS satellite navigation systems, or multi-system joint positioning in any combination

  • Support D-GNSS differential positioning

  • Two Lego-compatible holes

Applications

  • Vehicle positioning and navigation

  • Smart law enforcement positioning

Specifications

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

136 * 92 * 13mm

PinMap

M5Core(GROVE C)
U2RXD(GPIO16)
U2TXD(GPIO17)
5V
GND

GPS Unit

Signal Transmitter(TXD)

Signal Receiver(RXD)

5V

GND

M5Core2(PORT C)
U2RXD(GPIO13)
U2TXD(GPIO14)
5V
GND

GPS Unit

Signal Transmitter (TXD)

Signal Receiver (RXD)

5V

GND

Schematics

Datasheetss

Model Size

Compatible

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