Product details
1. Can detect the sound intensity of the surrounding environment, the use of Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration) can not identify the size of the sound or a specific frequency of sound
2. Adjustable sensitivity (blue digital potentiometer adjustment in the picture)
3. Operating voltage 3.3V-5V
4. Output form Digital switching output (0 and 1 high and low level)
5. With fixing bolt holes, easy to install
6. Size: 34 mm * 16 mm * 15 mm (L * W * H)

Module wiring instructions
1.VCC external 3.3V-5V voltage (can be directly connected to the 5v microcontroller and 3.3v microcontroller)
2.GND External GND
3.OUT Small board switching output interface (0 and 1)

Instructions for use
1. The sound module is most sensitive to the environmental sound intensity, generally used to detect the sound intensity of the surrounding environment.
2. The module outputs a high level when the ambient sound intensity does not reach the set threshold, and a low level when the external ambient sound intensity exceeds the set threshold;
3. Small board digital output OUT can be directly connected to the microcontroller, through the microcontroller to detect the high and low levels, and thus to detect the environmental sound;
4. Small board digital output OUT can directly drive our relay module, which can form a sound control switch;
Output type category: digital sensor
Package Includes
5x Acoustic Detection Sensor Modul