This module is equipped with a ceramic vibration sensor which is a vibration analogue signal. The sensor may have different vibrations measure thickness. Vibrations that affect the sensor generate a voltage signal due to the piezoelectric effect depending on the strength of the vibration. Therefore, you do not need a supply voltage for the sensor, but only the voltage at the signal pin of the sensor has to be measured by using an analog-digital converter. https://elecena.pl/product/28015613/joy-it-vibrations-sensor 2025-03-12 https://elecena.pl/product/28015613/joy-it-vibrations-sensor 2025-05-22 https://elecena.pl/product/28015613/joy-it-vibrations-sensor 2025-07-18 https://elecena.pl/product/28015613/joy-it-vibrations-sensor 2025-09-17