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KY-038 Microphone Voice Sound Sensor Module

Description

TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module

The TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module is a compact, dual-output sensor ideal for detecting and responding to sound in electronic projects. Designed for use with platforms like Arduino, Raspberry Pi, and ESP32, this module delivers both analog and digital outputs, providing flexible integration options for sound-responsive applications.

Whether you're building a sound-activated system, a voice-triggered interface, or experimenting with acoustic sensors in educational settings, the KY-038 delivers accuracy, simplicity, and versatility in a small package.


Key Features

  • Dual Output Capabilities – Offers both analog output for real-time sound level readings and digital output for threshold-triggered responses

  • Onboard Sensitivity Adjustment – Integrated potentiometer allows for fine-tuning the sound threshold of the digital output

  • Broad Operating Voltage – Compatible with 3.3V to 5V systems, making it adaptable across multiple platforms

  • Compact and Lightweight – Easy to embed in DIY electronics, wearables, robotics, and home automation projects

  • Status Indicators – Built-in power and output status LEDs for immediate visual feedback

  • Cross-Platform Compatibility – Seamlessly integrates with Arduino, Raspberry Pi, ESP8266, ESP32, and more


Technical Specifications

Specification Description
Operating Voltage 3.3V to 5V
Analog Output Variable voltage reflecting sound level
Digital Output HIGH/LOW based on threshold
Sensitivity Control Adjustable via onboard potentiometer
Interface Pins VCC, GND, AOUT (Analog), DOUT (Digital)
Dimensions Compact module format

Installation Example

In a practical smart home automation scenario, this sensor can be used to implement a sound-activated light system. Mount the FA3020 KY-038 in a room and connect it to a microcontroller. When it detects a clap or voice signal above a preset threshold, the module sends a digital signal to trigger a relay that powers a light fixture. This enhances accessibility and user interaction without physical switches.


Benefits for Installers and Technicians

  • Quick Setup – Easily connects with standard jumper wires and breadboards

  • Flexible Functionality – Can be used for event detection or sound level monitoring

  • Adjustable Response – Onboard control lets installers tailor performance to the environment

  • Great for Prototyping – A reliable option for early-stage development or educational training


Warranty and Support

Tri-Tek Electronics is an authorized distributor of TeknoCrafters products, ensuring full manufacturer warranty coverage, direct factory support, and competitive pricing. Local customers can visit our Mesa, Arizona retail location, serving the Phoenix area including Chandler, Tempe, Gilbert, Scottsdale, and Glendale.

Product form

TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module The TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module is a compact,... Read more

Free local pickup in our store

SKU: TEKFA3020

25 in stock

$4.99 $3.95

    • Shipped today? Order within: Nov 24, 2025 14:00:00 -0700

    Description

    TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module

    The TeknoCrafters FA3020 KY-038 Microphone Voice Sound Sensor Module is a compact, dual-output sensor ideal for detecting and responding to sound in electronic projects. Designed for use with platforms like Arduino, Raspberry Pi, and ESP32, this module delivers both analog and digital outputs, providing flexible integration options for sound-responsive applications.

    Whether you're building a sound-activated system, a voice-triggered interface, or experimenting with acoustic sensors in educational settings, the KY-038 delivers accuracy, simplicity, and versatility in a small package.


    Key Features

    • Dual Output Capabilities – Offers both analog output for real-time sound level readings and digital output for threshold-triggered responses

    • Onboard Sensitivity Adjustment – Integrated potentiometer allows for fine-tuning the sound threshold of the digital output

    • Broad Operating Voltage – Compatible with 3.3V to 5V systems, making it adaptable across multiple platforms

    • Compact and Lightweight – Easy to embed in DIY electronics, wearables, robotics, and home automation projects

    • Status Indicators – Built-in power and output status LEDs for immediate visual feedback

    • Cross-Platform Compatibility – Seamlessly integrates with Arduino, Raspberry Pi, ESP8266, ESP32, and more


    Technical Specifications

    Specification Description
    Operating Voltage 3.3V to 5V
    Analog Output Variable voltage reflecting sound level
    Digital Output HIGH/LOW based on threshold
    Sensitivity Control Adjustable via onboard potentiometer
    Interface Pins VCC, GND, AOUT (Analog), DOUT (Digital)
    Dimensions Compact module format

    Installation Example

    In a practical smart home automation scenario, this sensor can be used to implement a sound-activated light system. Mount the FA3020 KY-038 in a room and connect it to a microcontroller. When it detects a clap or voice signal above a preset threshold, the module sends a digital signal to trigger a relay that powers a light fixture. This enhances accessibility and user interaction without physical switches.


    Benefits for Installers and Technicians

    • Quick Setup – Easily connects with standard jumper wires and breadboards

    • Flexible Functionality – Can be used for event detection or sound level monitoring

    • Adjustable Response – Onboard control lets installers tailor performance to the environment

    • Great for Prototyping – A reliable option for early-stage development or educational training


    Warranty and Support

    Tri-Tek Electronics is an authorized distributor of TeknoCrafters products, ensuring full manufacturer warranty coverage, direct factory support, and competitive pricing. Local customers can visit our Mesa, Arizona retail location, serving the Phoenix area including Chandler, Tempe, Gilbert, Scottsdale, and Glendale.

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