Waveshare 9534 Sound Sensor LM386

Waveshare 9534 LM386 Sound Sensor Module | Analog & Digital Sound Detection | Compatible with Arduino, Raspberry Pi & STM32

The Waveshare 9534 LM386 Sound Sensor Module is a high-sensitivity microphone-based sound detection module designed for audio detection, ambient sound monitoring, and sound-triggered applications. Built around the LM386 audio amplifier, the module amplifies microphone signals up to 200 and provides both analog (AOUT) and digital (DOUT) outputs for flexible integration with microcontrollers and embedded systems.

Operating from 3.3V to 5.3V, the module is compatible with Arduino, Raspberry Pi, STM32, ESP32, ESP8266, and other development platforms. An onboard potentiometer allows sensitivity adjustment, while the digital output threshold can be configured for sound-triggered events. It is suitable for clap switches, noise detection, sound monitoring, robotics, smart home projects, and educational electronics.

Key Features

• Genuine Waveshare Sound Sensor (SKU: 9534)
• Onboard LM386 audio amplifier
• Audio signal gain up to 200
• Analog and digital signal outputs
• Adjustable detection sensitivity
• Digital output threshold adjustment
• Onboard signal indicator LED
• Operating voltage: 3.3V5.3V
• Compatible with Arduino, Raspberry Pi, STM32, ESP32 & ESP8266
• Compact PCB with mounting holes