Sound Sensor

Overview

• Onboard audio power amplifier LM386
• Audio signal gain up to 200
• Signal output indicator

Specifications

• Mic sensitivity : 52dB
• Frequency range : 50Hz ~ 20KHz
• Power: 3.3V ~ 5.3V
• Dimension: 39.0mm * 21.0mm
• Mounting holes size: 2.0mm

Applications

• Ambient sound detection
• Sound level detection

How to Use

In the case of working with a MCU:

• VCC ↔ 3.3V ~ 5.3V
• GND ↔ power supply ground
• AOUT ↔ MCU.IO (analog output)
• DOUT ↔ MCU.IO (digital output)