Sound Sensor Module — Analog & Digital Output, Arduino

Sound Sensor Module — Analog & Digital Output, Arduino Compatible

A general-purpose sound sensor module with both analog (AO) and digital (DO) outputs for flexible integration into Arduino and microcontroller projects. The on-board electret microphone and LM393 comparator circuit provide a clean digital output for sound-triggered switching, plus a raw analog output for sound level measurement via Arduino ADC.

The adjustable sensitivity potentiometer allows threshold tuning for different environments. The compact module with standard 2.54mm header is compatible with 3.3V and 5V systems including Arduino, ESP32, and Raspberry Pi.

Key Specifications

• Outputs: Analog (AO) + Digital (DO) | Comparator: LM393
• Operating voltage: 3.3V–5V DC | Current consumption: <15mA
• Sensitivity: Adjustable via on-board potentiometer
• Digital output: HIGH when sound exceeds threshold | Analog output: 0–VCC proportional to sound level
• Indicator LEDs: Power LED + digital output status LED
• Connector: 4-pin 2.54mm header (VCC / GND / AO / DO)

Typical Applications

• Sound-triggered relay and LED control
• Clap-activated switch projects
• Noise level monitoring and alert systems
• Arduino sound detection and voice trigger projects
• Security and intrusion detection systems
• Smart home automation sound triggers

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

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