Achieve centimeter-level positioning accuracy with the SparkFun ZED-X20P GNSS Flex pHAT, featuring the cutting-edge u-blox X20 engine. Designed for demanding navigation and control applications, this module seamlessly integrates with single-board computers (SBCs) like Raspberry Pi, NVIDIA Jetson Orin Nano, and Google Coral via a 40-pin header. The Flex pHAT connects to the GNSS module with standardized 2x10-pin headers, allowing easy module swaps for repairs or upgrades. A USB-C port offers an alternative data interface, while a microSD card slot is perfect for logging position, velocity, and time data. The package includes all necessary mounting hardware for a stable setup.The ZED-X20P GNSS receiver at the heart of the module processes signals from all major constellations, including GPS, Galileo, and BeiDou, across all frequency bands. This capability ensures fast and reliable fixes, making it ideal for applications such as UAVs, guidance systems, and auto-steering. The module's support for Real-time Kinematics (RTK), Precise Point Positioning (PPP), and L-band correction services offers ultimate flexibility for precise navigation tasks.Designed to handle high-speed robotics and vehicle control systems, the module boasts a high update rate for smooth operation. Its robust security features include multi-layered defenses with a Root of Trust, advanced jamming and spoofing detection, and Galileo OSNMA cryptographic authentication, ensuring uncompromising security for your applications.For optimal performance, an external antenna and a GNSS Flex carrier board are required. The module provides a U.FL connector for the antenna, with an option for a sturdier SMA connector on the pHAT. Simply connect the U.FL connectors on both the GNSS Flex module and the pHAT with a short U.FL cable for a reliable setup. The primary serial bus of the Raspberry Pi (TX: GPIO14/Pin 8; RX: GPIO15/Pin 9) is typically used for communication, though other interfaces can also be utilized.