KY-037 Microphone Sound Sensor

High-Sensitivity Electret Condenser Transducer: Detects subtle acoustic waves and ambient room noise to provide reliable sound level sensing.

Dual Signal Output Array (AO & DO): Features an Analog Output (AO) for continuous real-time sound amplitude tracking and a Digital Output (DO) for quick threshold switching.

Onboard Sensitivity Calibration Trimmer: Integrated multi-turn potentiometer allows fine-tuning of the sound sensitivity and digital trigger activation threshold.

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

Dual LED Indicator Lights: Includes a power status LED and a digital trigger output LED for immediate visual feedback during circuit debugging and testing.

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

Technical Specifications:

Operating Supply 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; route AO to an analog ADC pin for noise level logging or DO to a GPIO pin for clap-activated triggers.

Maintenance: Keep the microphone inlet clear of dust, oil, and solder flux; clean board surfaces gently using a soft, dry microfiber cloth.

Essential DIY Acoustic Trigger Module: Position as a top-selling acoustic sensor for clap-activated switches, voice-triggered lighting, room noise monitors, and robotics sound detection.

Highlight Dual Analog & Digital Outputs: Emphasize how having both raw analog waveform output and digital comparator switching on a single breakout simplifies both simple triggers and advanced microcontroller audio logging.

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

Featured Collection Star: Display prominently on your Sound Sensor Modules collection page as your classic high-sensitivity KY-037 microphone sensor board.