M5Stack GPS/BDS Unit v1.1 (AT6668)

This GPS Unit is a global navigation module that provides accurate satellite positioning services. It combines the CASIC navigation chip AT6668 with the MAX2659 signal amplifier chip and has a built-in ceramic antenna for better positioning performance. The AT6668 chip supports multi-frequency and multi-mode GNSS signal reception, letting it work with multiple satellite systems such as GPS, BD2, BD3, GLONASS, GALILEO, and QZSS. This allows it to provide combined positioning using multiple systems or standalone positioning with a single system. With improved anti-interference and positioning accuracy from the original unit, the GPS Unit v1.1 can quickly acquire precise location data, even in areas with weak signal strength (Those pesky mountains!) Features

* Supports multiple satellite navigation systems (GPS/QZSS/BD2/BD3/GAL/GLO)

* Multi-frequency and multi-system reception

* Multi-channel

* Low power consumption

* 2x LEGO-compatible holes

* Programming platforms: Arduino, UIFlow, etc.

Specifications

SoC AT6668

Supported Systems GPS/QZSS/BD2/BD3/GAL/GLO

Frequencies:

BDS: B1I+B1C

GPS/QZSS/SBAS: L1

GALILEO: E1

GLONASS: R1

Channels 50 channels

Communication UART communication, default 115200bps@8N1

Positioning Accuracy <1.5m (CEP50)

Update Rate Max 10Hz

Protocol NMEA0183 4.1

Sensitivity Tracking: -162dBm, Acquisition: -160dBm, Cold Start: -148dBm

Start Time Cold Start: 23 seconds, Hot Start: 1 second

Power Consumption DC5V/31.64mA

Product Size 48 x 24 x 8mm

Package Size 136 x 92 x 9mm

Product Weight 12.3g

Package Weight 17.7g

Resources

* Product Wiki

Package Contents

* 1x GPS Unit v1.1

* 1x HY2.0 4-pin Cable (20cm)