SparkFun Triband GNSS RTK Breakout - UM980

SparkFun Triband GNSS RTK Breakout - UM980 (GPS-23286)

The SparkFun Triband GNSS RTK Breakout features the UM980 GNSS high precision RTK position module from Unicore Communications. The UM980 is a 1408-Channel GNSS Receiver based on the Nebulas IV™ that is able to simultaneously track GPS L1/L2/L5, GLONASS L1/L2, Galileo E1/E5a/E5b/E6, Beidou B1I/B2I/B3I/B1C/B2a/B2b, QZSS L1/L2/L5, and SBAS. With this board, you will be able to know where your (or any object's) X, Y, and Z location is within roughly the width of your fingernail. When an RTK solution is reached, the module can achieve a horizontal accuracy of about 8mm (~0.3 inches) and vertical accuracy of 15mm (~0.59 inches). The UM980 is capable of both rover and base station operations.

We've included a rechargeable backup battery to keep the latest module configuration and satellite data available. This battery helps 'warm-start' the module, decreasing the time-to-first-fix dramatically. This module features a survey-in mode, allowing the module to become a base station and produce RTCM 3.x correction data. A SMA connector is included for a secure connection to a Triband GNSS antenna.

Currently, serial UART is only supported on the UM980 module. All three serial UART ports have been broken out to the USB-C connector via CH340, 4-pin locking JST connector, and BlueSMiRF header. Unique pins have also been broken out to the edge of the board. Various jumpers are also included to configure power and LEDs.

Repository Contents

• .github/workflows - YAML files used for GitHub Actions and GitHub Pages/mkdocs
• /Firmware - UM980 Firmware packages
• /Documents - Datasheets and various documents related to the UM980
• /Hardware - Eagle files
• /Software - Related software for the UM980
• /docs - Online documentation files
  • /assets - Folder containing all the file assets used for product documentation
    • /board_files - Copy of design files used for product documentation
    • /component_documentation - Datasheets and manuals for hardware components