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Big Microphone Sound Sensor Module (KY-037)

SKU: D7T9H0EIF4
The KY-037 Microphone Sound Detection Module is a sensitive audio detection sensor designed to detect sound levels and acoustic signals in the surrounding environment. The module combines an electret microphone with an LM393 voltage comparator, providing both analog and digital outputs for sound monitoring and sound-triggered applications. The analog output provides a real-time representation of sound intensity, while the digital...
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Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Sound Detection Sensor Module
Model: KY-037
Sensor Element: Electret Microphone
Comparator IC: LM393
Operating Voltage: 3.3V to 5V DC
Operating Current: Less Than 10mA
Output Type: Analog Output (AO) and Digital Output (DO)
Digital Output Logic: TTL Compatible
Sensitivity Adjustment: Onboard Potentiometer
Detection Method: Acoustic Sound Detection
Frequency Response: Audio Frequency Range
Response Time: Fast Response
Indicator LEDs: Power LED and Signal LED
Interface Pins: VCC, GND, AO, DO
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
PCB Dimensions: Approximately 36mm × 15mm
Mounting Type: Through-Hole Module
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR

Additional Resources

Sound Detection Module.PDF

FAQ

1. What is the KY-037 Sound Detection Module used for?

The KY-037 is used to detect sound levels and audio events in applications such as clap switches, sound-triggered automation, alarms, and noise monitoring systems.

2. What outputs does the KY-037 provide?

The module provides an analog output for measuring sound intensity and a digital output that changes state when the sound level exceeds a set threshold.

3. What is the purpose of the onboard potentiometer?

The potentiometer allows users to adjust the sensitivity and trigger threshold of the digital output.

4. Can the KY-037 be connected to Arduino and ESP32 boards?

Yes, the module can be easily interfaced with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers.

5. What is the difference between the analog and digital outputs?

The analog output provides continuous sound level information, while the digital output provides a simple HIGH or LOW signal when the preset sound threshold is reached.

View full product details

The KY-037 Microphone Sound Detection Module is a sensitive audio detection sensor designed to detect sound levels and acoustic signals in the surrounding environment. The module combines an electret microphone with an LM393 voltage comparator, providing both analog and digital outputs for sound monitoring and sound-triggered applications.

The analog output provides a real-time representation of sound intensity, while the digital output can be configured using the onboard potentiometer to trigger when the sound level exceeds a predefined threshold. This makes the module suitable for clap switches, sound-activated lighting, noise monitoring systems, security alarms, robotics, and interactive electronics projects.

The KY-037 can be easily interfaced with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers for audio sensing applications.

Key Features

  • High-sensitivity electret microphone
  • LM393 comparator-based sound detection
  • Analog and digital outputs
  • Adjustable sound detection threshold
  • Real-time sound level monitoring
  • Fast response to audio signals
  • Onboard sensitivity adjustment potentiometer
  • Power and status indicator LEDs
  • Compact PCB module design
  • Low power consumption
  • Easy microcontroller interfacing
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Suitable for sound-activated projects
  • Ideal for educational and DIY electronics applications