3 Or 4 Pin Small Microphone Sound Sensor Module

A 3 or 4-pin small microphone sound sensor module is a type of sensor used to detect sound levels in its vicinity. :

3-pin microphone sound sensor module: This module typically consists of three pins - VCC (power supply), GND (ground), and OUT (signal output). It converts sound waves into electrical signals which can be measured by a microcontroller or other electronic circuits. The output signal can be analog or digital depending on the module. 4-pin microphone sound sensor module: This module usually has an additional pin compared to the 3-pin version. The fourth pin may serve a specific purpose such as providing a digital output signal (like a digital sensor or switch) or offering additional functionalities like adjustable sensitivity.

Features :

1. Working voltage: DC 3.3-5V.
2. IC Chip: LM393
3. Signal output indication.
4. The output is digital.
5. Single channel signal output.
6. With the retaining bolt hole, convenient to install.
7. Output low level and the signal light when there is sound.
8. 5V Dc Power Supply
9. Power indicator light

Package Includes :

1 x 3 Or 4 Pin Small Microphone Sound Sensor Module