M5Stack COM.GPS Module with Antenna (NEO-M8N)

M5StackSKU: M031-G
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COM.GPS is a NEO-M8N based satellite positioning module for use with M5Stack Core stackable development kits, equipped with an external, active antenna.

The NEO-M8N GPS receiver integrates a 72-channel u-blox M8 GNSS engine that supports multiple GNSS systems (Beidou, Galileo, GLONASS, GPS / QZSS) and is able to receive 3 GNSS systems simultaneously. It provides high sensitivity and minimal acquisition times while maintaining low system power. Programmable flash memory is integrated inside the module, so it's possible to update the firmware.

This module's high sensitivity, small static drift, low power consumption and compact size make it useful for applications in vehicles, handheld devices such as PDAs, vehicle monitoring, mobile phones, cameras and other mobile positioning systems. M5Core communicates with this GPS module via UART, and the serial port connection pins can be modified through the dial switch on the back.

Notes

  • This module will only be able to pick up a GPS signal outdoors!
  • UART protocol: baud rate (default is 9600bps), data bit (8 bits), start bit (1 bit), stop bit (1 bit), check bit (none).
  • You can change the serial port baud rate and reflash the firmware via u-center-just-for-Windows.
  • COM.GPS RXD/TXD can be connected to M5Stack Core's UART (TX(0/13/17)RX(5/15/16)) by setting the DIP switch. M5Stack Fire uses GPIO16 and GPIO17 for its PSRAM by default, so if you're using one of those it's recommended to use any one of the remaining two groups of pins.
  • The right dial switch is invalid for this module, no need to set it.

Product Features

  • Antenna type: external GPS antenna
  • External antenna port: SMA
  • Can receive data from 3 GNSS systems at the same time
  • Horizontal position accuracy: minimum 2.5m
  • GPS module (NEO-M8N) built-in flash memory, so you can upgrade firmware via u-center-just-for-Windows.
  • Protocol: NMEA, UBX, RTCM
  • Industry-leading -167dBm sensitivity
  • Backward compatible with NEO‑7 and NEO‑6 series

Includes

  • 1x COM.GPS Module
  • 1x External antenna(length: 1 m)

Application

  • GPS-based logistics tracking management
  • Driverless car positioning

Specification

Resources Parameter
Receiver type GPS:L1C/A SBAS:L1C/A QZSS:L1C/A GLONASS:L1OF BediDou:B1 Galileo:E1B/C
Positioning time Cold start:26S Hot start:1.5S
Sensitivity -167 dBm
Update rate Separate GNSS 10Hz,Parallel GNSS 5Hz
Rate accuracy 0.05m/s
Height limit 50000m
Speed limit 500m/s
Working voltage 2.7 ~ 3.6
Working temperature -40 ~ 80°C
Net Weight 28g
Gross Weight 99g
Product Size 54*54*13.2mm
Package Size 165*60*36mm

Notice

When using with the FIRE main control, due to the PSRAM pin conflict, please switch the Module base DIP switch pin to TX(0/13), RX(5/15) when using it.

When used with Core2 series main control, due to the different order of the base pin array, COM.NB-IoT base pins TX(16), RX(17) correspond to the actual pins TX(14) of the Core2 main control ,RX(13).

Note: When using the CORE2 or CORE2-FOR-AWS main control to drive the module, please use the DC power input of the base and set the power mode to input mode (refer to the code below), otherwise it will not start normally.

//mbus_mode_t:
//kMBusModeOutput: use USB or battery power
//kMBusModeInput: Use external power supply 5V, or DC interface

M5.begin(true, true, true, false, kMBusModeInput);

The right dial switch is invalid for this module, no need to set it.

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