Microphone Sound Detector Module — Digital & Analog Output

Microphone Sound Detector Module — Digital & Analog Output, Arduino Compatible

A versatile microphone sound detector module with both digital (DO) and analog (AO) outputs, making it suitable for both simple sound-triggered switching and precise sound level measurement. The on-board electret microphone capsule and LM393 comparator circuit provide a clean digital output when sound exceeds the adjustable threshold, plus a raw analog output for sound level monitoring via Arduino ADC.

The adjustable sensitivity potentiometer allows fine-tuning of the detection threshold to suit different environments — from quiet rooms to noisy workshops. Compatible with 3.3V and 5V microcontrollers including Arduino, ESP32, and Raspberry Pi.

Key Specifications

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

Why Choose This Module?

• ✅ Dual output (digital + analog) — use digital for simple triggers, analog for sound level measurement
• ✅ Adjustable sensitivity — on-board potentiometer for threshold tuning
• ✅ 3.3V/5V compatible — works with Arduino, ESP32, STM32, and Raspberry Pi
• ✅ Status LED — visual feedback for digital output state during setup and debugging
• ✅ Compact module — standard 4-pin header, easy to integrate into any project

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.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.