Sound Sensor Module

Overview

This module is useful for detecting sound intensity in the surroundings. It is suitable for acoustic lights, noise-canceling cameras and similar applications.

This sensor can not be used to measure the sound intensity or the specific frequency of a sound.

Specifications

• Operating voltage: 3.3 V to 5 V
• Adjustable sensitivity by potentiometer
• Digital output (0 and 1, high and low)
• PCB size: 32 x 17 mm

Features

1. It can detect the sound intensity of the surrounding environment.

Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration) and cannot identify the size of the sound or the sound of a specific frequency

2. The sensitivity is adjustable (the blue digital potentiometer is adjusted in the picture)

3. With fixing bolt holes for easy installation

Two Module Wiring Instructions

1. VCC externally connects 3.3V-5V voltage (can be directly connected with 5v microcontroller and 3.3v microcontroller)

2.GND external GND

3. OUT small board switch output interface (0 and 1)

Three Instructions

1. The sound module is most sensitive to the sound intensity of the environment, and is generally used to detect the sound intensity of the surrounding environment.

2. The module OUT outputs a high level when the ambient sound intensity does not reach the set threshold; when the external environment sound intensity exceeds the set threshold, the module OUT outputs a low level;

3. The digital output OUT of the small board can be directly connected with the single-chip microcomputer, and the high and low level can be detected by the single-chip microcomputer, thereby detecting the sound of the environment.

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