Kalman Filter for distance sensor

Visualization effect Kalman filter parameters over distance sensor HC-05 ( can be any signal sensor),

Code with appdesigner interface for testing a Kalman filter, in this code a signal is received through the serial port of a distance sensor, it was tested with an HC-05 ultrasonic sensor coupled to an arduino, in this interface you can see the effect of the process variance and the sensor variance and how they affect the filtered signal in a graph of the appdesigner application, where they show the raw signal and the filtered signal.