Building a local positioning system to track runners using Ultra-Wideband
Summary
A detailed engineering blog describing a DIY Ultra-Wideband-based local positioning system for the 12Urenloop race. It covers the motivation for UWB, hardware choices (DWM3000, ESP32, Bevy dashboard, Raspberry Pi), calibration, synchronization, and early results, with plans to scale the setup for full-course coverage.