SparkFun GPS-RTK2 Board - ZED-F9P (Qwiic)
Overview
The SparkFun GPS-RTK2 is a high-precision GNSS evaluation board based on the u-blox ZED-F9P module. It is capable of 10mm-level positional accuracy when used with a Real Time Kinematics (RTK) correction source. The board supports concurrent reception of GPS, GLONASS, Galileo, and BeiDou constellations to maximize signal availability.
Why Choose This Part
The board features a Qwiic connector for solderless I2C integration and a USB-C interface for direct PC connectivity. It includes an onboard rechargeable battery to maintain RTC and GNSS orbit data, significantly reducing Time To First Fix (TTFF) for subsequent power cycles. Comprehensive breakout pins provide access to dual UARTs, SPI, and I2C interfaces for flexible system integration.
Applications
Getting Started
Connect the board to a PC via USB-C and use u-blox u-center software for configuration and real-time visualization. For microcontroller integration, the SparkFun u-blox GNSS Arduino Library provides high-level functions for I2C communication. Ensure an active GNSS antenna with a clear view of the sky is connected via the SMA interface for optimal performance.
