Waveshare Sound Sensor

LM386 can be applied to consumer products with low voltage requirements. To minimize the number of peripheral components used, the voltage gain should be set to 20. In the case of working with an MCU: VCC ↔ 3.3V ~ 5.3V GND ↔ power supply ground AOUT ↔ MCU.IO (analog output) DOUT ↔ MCU.IO (digital output) Applications: 1. Audio amplifier 2. Ambient sound detection 3. Sound level detection Features: 1. Onboard audio power amplifier LM386 2. Audio signal gain up to 200 3. Adjustable accuracy 4. Signal output indicator