recommend the updated version: M5Stack GPS/BDS Unit with SMA Antenna (AT6668) Relevant Information: Comparing GPS/BDS Unit v1.1 and Unit-GPS SMA GPS Unit v1.1 is a GNSS navigation module equipped with the reliable CASIC AT6668 chip and MAX2659 signal amplifier, featuring a built-in ceramic antenna for precise satellite position acquisition. The latest AT6668 enables reception from a wide range of satellite systems, covering GPS, BD2, BD3, GLONASS, GALILEO, and QZSS, with both multi-frequency and multi-system support. Whether you need dedicated or combined GNSS signals, this unit delivers accurate location data, quick signal capture, and strong anti-interference performance, even in more challenging environments. This compact GNSS module is well-suited for use in vehicle tracking, IoT devices, drone navigation, and other high-precision positioning needs. Features Compatible with multiple GNSS (GPS/QZSS/BD2/BD3/GAL/GLO) Handles multi-frequency & multi-system signals Multi-channel tracking Low energy usage LEGO mounting options (2 holes) Works with Arduino, UIFlow, and more Includes 1x Unit-GPS v1.1 1x HY2.0-4P Cable (20CM) Applications Vehicle navigation and positioning Wearable tech IoT location trackers UAVs/drones Portable positioning devices Transit station service Specifications Specification Parameter SoC AT6668 Supported Systems GPS/QZSS/BD2/BD3/GAL/GLOFrequencies:BDS: B1I+B1CGPS/QZSS/SBAS: L1GALILEO: E1GLONASS: R1 Channels 50 channels Communication UART, default baud rate 115200bps@8N1 Positioning Accuracy
![[EOL] M5Stack Mini GPS/BDS Unit (AT6558)](https://cdn.shopify.com/s/files/1/0621/0050/4774/files/O1CN01Mm6gi01cadHECKylu__2206678253617.webp?v=1770802265&width=480)
