Sound Microphone Sensor

The sound sensor module acts as the equivalent of a microphone (mike). It is used to receive sound waves and display a vibrational image of the sound, but cannot make measurements of the intensity of noise. The sensor has a built-in condenser electret microphone that is sensitive to sound. Sound waves vibrate the electret film inside the microphone, resulting in a change in capacitance that produces a small voltage corresponding to the change. This voltage is then converted to a 0-5V voltage, which is accepted by the data collector after A/D conversion and transmitted to the main control chip.

Pin Definitions:

• Supply Voltage: 3.3V / 5V
• Connection Type: 2.54mm pitch pin header
• Mounting Type: Fixed with double screws