SPECIFICATIONS

Brand Name: NONE

High-concerned chemical: none

Origin: Mainland China

Product Features:

1 It can detect the sound intensity of the surrounding environment, use note: This sensor can only recognize the presence or absence of sound (according to the vibration principle) and cannot recognize the loudness of the sound or the sound of a specific frequency

2 Adjustable sensitivity (blue digital potentiometer adjustment in the figure)

3 Working voltage 3.3V-5V

5 Output Form Digital Switching Output (0 & 1 High & Low Level)

6 Equipped with fixing bolt holes for easy installation

7 Small board PCB size: 3.2cm * 1.7cm

2. Module wiring instructions

1 VCC External 3.3V-5V Voltage (Can be directly connected to 5V microcontroller and 3.3V microcontroller)

2 GND is external to GND

3 OUT Small Board Switching Output Interface (0 & 1)

3. Instructions for use

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

2 When the ambient sound intensity of the module does not reach the set threshold, the module OUT outputs a high level, and when the external ambient 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 to the microcontroller, and the high and low levels can be detected through the microcontroller, so as to detect the sound of the environment;

4 The digital output OUT of the small board can directly drive the relay module of our store, which can form a voice-controlled switch;