MAX-M8Q GNSS HAT for Raspberry Pi

This is a Raspberry Pi GNSS HAT based on the 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.

The board also supports augment systems like SBAS, QZSS, IMES, and D-GPS. It features accurate & fast positioning with minor drifting, low power consumption and outstanding ability for anti-spoofing & anti-jamming.

The HAT comes complete with an external antenna, USB cable, fixings and a GPIO header.

Full product Wiki and user guide available. Full specification sheet available here.

Features

• 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 and 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
• -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 40-pin GPIO extension header
• Onboard USB TO UART converter CP2102 for serial debugging
• Breakouts the module's UART and I2C interface for connecting with host boards
• 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

Package contents

• 1x MAX-M8Q GNSS HAT
• 1x GPS External Antenna (B)
• 1x USB-A to Micro-B cable
• 1x RPi screws pack (2pcs)
• 1x 40-pin header

What's onboard

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
7) Raspberry Pi GPIO header
8) UART, I2C interface for connecting with other MCUs
9) USB TO UART port
10) GNSS antenna connector
11) 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

Pinouts

Dimensions

Specifications

• Download the full specification table PDF here