void MPU_vTaskDelay( const TickType_t xTicksToDelay ) FREERTOS_SYSTEM_CALL; BaseType_t MPU_xTaskDelayUntil( TickType_t * const pxPreviousWakeTime, const TickType_t xTimeIncrement ) ...
// Convert time to distance in centimeters (speed of sound ≈ 0.034 cm/us, half for to-and-fro) ...
It's a solved problem, but I actually prefer a simple web UI.