Microphone Sound Sensor Module

High-Sensitivity Electret Condenser Transducer: Detects subtle environmental acoustic waves and sound pressure variations to enable reliable audio trigger telemetry.

Dual Signal Telemetry Array (AO & DO): Features an Analog Output (AO) for continuous audio envelope amplitude monitoring and a Digital Output (DO) for quick sound threshold switching.

Onboard Sensitivity Trimmer: Integrated multi-turn potentiometer allows precise threshold adjustment to compensate for background environmental noise.

LM393 Voltage Comparator Core: Outfitted with an onboard LM393 comparator IC to provide clean, noise-filtered digital switching logic with stable driving capability.

Dual LED Status Indicators: Includes power and digital output LEDs for real-time visual confirmation during breadboard prototyping and circuit testing.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with a top-mounted electret microphone, blue potentiometer, and tinned header pins.

Technical Specifications:

Operating Voltage: 3.3V - 5.0V DC.

Output Signal Types: Analog Voltage Output (AO) + Digital Switching Output (DO).

Color: Red PCB with Blue Potentiometer and Silver Microphone Capsule.

Usage Advice: Connect VCC (3.3V-5V) and GND to your microcontroller; connect AO to an analog pin for audio level logging or DO to a GPIO pin for clap/sound triggers.

Maintenance: Keep the microphone capsule inlet clear of dust, solder flux, and moisture; wipe gently with a soft, dry microfiber cloth.

Essential General-Purpose Acoustic Sensor: Position as the go-to entry-level microphone module for clap-activated switches, room decibel triggers, noise-activated alarms, and robotics sound detection.

Highlight Dual Output Versatility: Emphasize how having both analog waveform outputs and digital comparator switching on a single board makes it perfect for both beginner and advanced projects.

Recommended Cross-Sell Add-ons: Pair with KY-037 Microphone Sound Sensor, XD-21 LM358 Amplifier Module 100x Gain Operational Amplifier, 65dB Microphone Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Sound Sensor Modules collection page as your standard 4-pin microphone sensor breakout board.