PAMEENCOS 1pcs GY-SPH0645LM4H SPH0645 Digital Microphone Sensor Module 1.6-3.6V I2S Interface MEMS Digital Sound Sensor Low Power Sound Microphone Sound Detector Module Board for Arduino Raspberry Pi

Description:The sound sensor acts like a microphone (microphone). It is used to receive sound waves, display vibration images of sound, but cannot measure the intensity of noise. The sensor has a capacitive electret microphone that is sensitive to sound. Sound waves cause the electret film inside the microphone to vibrate, resulting in a change in capacitance and a small voltage corresponding to the change. This voltage is then converted into A 0-5V voltage, which is accepted by the data collector through A/D conversion and transmitted.