Sound Sensor Module for Arduino Description: Detecting the sound intensity of the surrounding environment, Caution: This sensor is only identify whether the size (according to the vibration principle) does not recognize the specific sound or sound frequency sound. Adjustable sensitivity (shown in blue digital potentiometer adjustment). Operating voltage: DC3.3V-5V. Output format: digital switching outputs (0 and 1 high and low). With fixed bolt hole for easy installation. Small PCB board size: 3.4cm * 1.6cm.
