Sound sensor module sound detection module module sound control port switch switch sound module

1 You can detect the sound strength of the surrounding environment. Pay attention to: This sensor can only recognize the sound of the sound (according to the principle of vibration).

2 The sensitivity can be adjusted (the blue digital potentiometer is adjusted in the figure)

3 Working voltage 3.3V-5V

5 Output form Digital switching output (0 and 1 level)

6 There is a fixed bolt hole for easy installation

7 small board PCB size: 3.2cm * 1.7cm

Two module wiring instructions

1 VCC external 3.3V-5V voltage (can be connected directly with 5V single-chip machine and 3.3V single-chip microcomputer)

2 GND external GND

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

Three use instructions

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

2 When the power strength of the module does not reach the set threshold, OUT outputs high levels. When the external environment sound strength exceeds the set threshold, the module OUT outputs low level;

3 Small board digital output OUT can be directly connected to the single -chip microcomputer to detect the high and low levels by single -chip machine, thereby detecting the sound of the environment;

4 small board digital output OUT can directly drive the shop's relay module, thereby forming a sound control switch;

Output model category: digital sensor

1 可以检测周围环境的声音强度,使用注意：此传感器只能识别声音的有无（根据震动原理）不能识别声音的大小或者特定频率的声音

2 The sensitivity can be adjusted (the blue digital potentiometer is adjusted in the figure)

3 Working voltage 3.3V-5V

5 Output form Digital switching output (0 and 1 level)

6 There is a fixed bolt hole for easy installation

7 small board PCB size: 3.2cm * 1.7cm

Two module wiring instructions

1 VCC external 3.3V-5V voltage (can be connected directly with 5V single-chip machine and 3.3V single-chip microcomputer)

2 GND external GND

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

Three use instructions

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

2 When the power strength of the module does not reach the set threshold, OUT outputs high levels. When the external environment sound strength exceeds the set threshold, the module OUT outputs low level;

3 Small board digital output OUT can be directly connected to the single -chip microcomputer to detect the high and low levels by single -chip machine, thereby detecting the sound of the environment;

4 small board digital output OUT can directly drive the shop's relay module, thereby forming a sound control switch;