XD-74 sound detector module

XD-74 factory direct voice sound sensor module detects the sensor module whistle sound modulecan detect the intensity of the ambient sound usingNOTE: This sensor can identify the presence or absence of sound (vibration according to the principle) does not recognize the size of the sound or the sound of a specific frequency(adjustable sensitivity (shown in blue digital potentiometer adjustmentOperating voltage 3.3V-5V(digital outputs in the form of switch output (0 and 1 high and lowwith fixed bolt hole for easy installationsmall PCB board size: 3.2cm * 1.7cm Two module wiring instructions(VCC external 3.3V-5V voltage (can be directly connected to 5v and 3.3v MCUGND external GND(OUT small plate switch output interfaces (0 and 1 Three instructionsthe intensity of the sound module on the most sensitive to the ambient sound, is generally used to detect the intensity of the ambient soundmodules at an ambient sound level of less than the set threshold, OUT output high when the ambient sound level exceeds the set threshold, the module OUT output lowsmall plates OUT digital output can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting the sound environment