MAX-M8Q GNSS HAT for Raspberry Pi, Multi-constellation Receiver Support, GPS, Beidou, Galileo, GLONASS

  • Mã sản phẩm: MAX-M8Q GNSS HAT
  • Nhà sản xuất: Waveshare
  • Website hỗ trợ:

MAX-M8Q GNSS HAT For Raspberry Pi, Multi-Constellation Receiver Support


GNSS Module Based On MAX-M8Q For Raspberry Pi

Accurate & Fast Positioning With Minor Drifting, Low Power Consumption, Outstanding Ability For Anti-Spoofing & Anti-Jamming

This is a Raspberry Pi GNSS HAT based on MAX-M8Q with multi-constellation receiver support, which means up to 3 types of GNSS satellite systems can be used together, including GPS, Beidou, Galileo, and GLONASS. It also support augment systems like SBAS, QZSS, IMES, and D-GPS. It features accurate & fast positioning with minor drifting, low power consumption, outstanding ability for anti-spoofing & anti-jamming, and so on.

By simply attaching it onto the Pi, it is fairly easy to enable GNSS capability for your Raspberry Pi.

Features At A Glance

  • Multi-constellation receiver support, concurrent reception of up to 3 types of GNSS satellite systems from GPS, Beidou, Galileo, and GLONASS, and still retains low power consumption
  • Augment systems support, including SBAS, QZSS, IMES, D-GPS, improving the positioning performance of service location
  • A-GNSS (Assisted GNSS) support, reducing the first positioning time when powered up, improving the acquisition sensitivity
  • Features -167dBm navigating sensitivity and outstanding ability for anti-spoofing & anti-jamming, supports geo-fencing
  • Supports U-Center, an easy way to config the module
  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
  • Onboard USB TO UART converter CP2102 for serial debugging
  • Breakouts the module's UART and I2C interface, for connecting with host boards like Arduino/STM32
  • Baudrate range: 4800~921600bps (9600bps by default)
  • Supports DDC (I2C compliant) interface: up to 400KHz (max)
  • Onboard battery holder, supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts
  • 4x LEDs for indicating the module operating status
  • Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)


Frequency band 72x u-blox M8 engine channels
GLONASS L1OF, BeiDou B1I, Galileo E1B/C
Horizontal positioning accuracy 2.5m CEP 2.5m CEP 4.0m CEP 3.0m CEP -
Max navigation update rate 10Hz 18Hz 18Hz 18Hz 18Hz
Time-To-First-Fix Cold starts 26s 29s 30s 34s 45s
Hot starts 1s 1s 1s 1s 1s
Aided starts 2s 2s 2s 3s 7s
Sensitivity Tracking and navigating -167 dBm -166 dBm -166 dBm -160 dBm -159 dBm
Re-acquisition -160 dBm -160 dBm -156 dBm -157 dBm -153 dBm
Cold starts -148 dBm -148 dBm -145 dBm -143 dBm -138 dBm
Hot starts -157 dBm -157 dBm -156 dBm -155 dBm -151 dBm
PPS accuracy RMS 30ns 30ns 30ns 30ns 30ns
99% 60ns 60ns 60ns 60ns 60ns
PPS frequency 0.25Hz…10MHz (configurable)
Velocity accuracy 0.05m/s
Heading accuracy 0.3 degree
Operational limits Acceleration (max): 4g
Altitude (max): 50000m
Velocity (max): 500m/s
Communication interface UART (4800~921600bps, 9600bps by default), I2C (max 400KHz)
Update rate 1Hz (default), 18Hz (max)
Protocol NMEA 0183 Version 4.0 (V2.1, V2.3 or V4.1 selectable), UBX, RTCM 2.3
Power supply 5V
Overall current <40mA@5V (Continue mode)
Module current 23mA@3V (Continue mode, tracking status)
Operating temperature -40℃ ~ 85℃
Dimensions 65mm × 30.5mm

Standard Raspberry Pi 40PIN GPIO

Compatible With Raspberry Pi Series Boards, Jetson Nano

Multi-Constellation Receiver Support

Concurrent Reception Of Up To 3 Types Of GNSS Satellite Systems, And Still Retains Low Power Consumption

Supports GPS, Beidou, Galileo, And GLONASS

Augment Systems Support

Augment System Is Aimed At Improving The Accuracy, Completeness, Reliability, And Availability Of Positioning And Navigation

Supports Augment Systems Including SBAS, QZSS, IMES, D-GPS

Geo-Fencing Support

Features -167dBm Navigating Sensitivity, Outstanding Ability For Anti-Spoofing & Anti-Jamming

Software U-Center Support

An Easy Way To Config The Module


Ideal For Fleet Management, Asset Tracking, Security Systems, Industrial PDA, GIS App, Etc.

What's On Board

  1. MAX-M8Q module
  2. TXS0108EPWR voltage translator
  3. RT9193-33 power chip
  4. CP2102 USB TO UART converter
  5. Status indicators
    RXD/TXD: UART TX/RX indicator
    PPS: GPS status indicator
    PWR: power indicator
  6. Battery holder
    supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts
  1. Raspberry Pi GPIO header
    for connecting with Raspberry Pi
  2. UART, I2C interface
    for connecting with other MCUs
  3. USB TO UART port
  4. GNSS antenna connector
  5. UART selection jumper
    A: control the MAX-M8Q through USB TO UART
    B: control the MAX-M8Q through Raspberry Pi
    C: access Raspberry Pi through USB TO UART

Pinout Definition

Outline Dimensions

Resources & Services



Weight: 0.132 kg

  1. MAX-M8Q GNSS HAT x1
  2. GPS External Antenna (B) x1
  3. USB-A to Micro-B cable x1
  4. RPi screws pack (2pcs) x1
  5. 2x20PIN female header x1







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