
SparkFun RTK Express Plus Kit
Description SparkFun RTK Express Plus Kit Offers a Bluetooth enabled multi-band GNSS receiver Comes with USB A to C cable Built-in IMU Embedded OLED display Receives both L1C/A and L2C bands The SparkFun RTK Express Plus Kit is a Bluetooth-enabled multi-band GNSS receiver with built-in IMU based on the ESP32 from Espressif and the ZED-F9R from u-blox. Power it up and you'll have 300mm approximate accuracy out of the box and 14 mm accuracy with RTCM corrections. This kit provides the L1/L2 antenna, adapters, interface cables, and chargers needed for general GNSS use. The RTK Express Plus adds an internal IMU (ZED-F9R) to combine real-time GNSS tracking with advanced sensor fusion. The result is accurate automotive positioning even when GNSS is lost in tunnels, parking garages, etc. The downside is the ZED-F9R does not support a base station or generate RTCM corrections. If you are implementing your own RTK base station, consider using products based on the ZED-F9P. The IMU alg