Electret Microphone

Overview

The electret microphone is useful in your electronics projects where you want to detect sound. Its operation is very simple and you only need a capacitor and a resistor to use it. An example of use in which an LED lights up depending on the volume of music can be found here . For this project, you need an LM386 amplifier and an Arduino development board.

Specifications

• Supply voltage: 1.5 V - 10 V
• Recommended supply voltage: 3 V
• Current consumed: 0.5 mA
• Operating frequency: 50 Hz - 20 kHz
• Signal / Noise ratio: 58 dB
• Sensitivity: -48dB - -66 dB

Dimensions: 9.7 mm x 6.7 mm

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