The KY-037 Sound Sensor Module is a compact and affordable audio detection board designed for use with Arduino, Raspberry Pi, and other microcontroller platforms. It detects sound intensity from the environment and outputs both digital and analog signals, making it ideal for sound-activated projects, voice alerts, and noise level monitoring.
🔊 Key Features
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Microphone sound detection module
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Analog output (AO): represents sound intensity level
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Digital output (DO): triggered when sound crosses threshold
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Adjustable sensitivity potentiometer
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On-board indicator LED for visual sound trigger
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Standard 3-pin interface (VCC, GND, DO/AO)
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Easy connection to microcontrollers
⚙️ Specifications
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Operating voltage: 3.3 V – 5 V DC
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Detection range: ambient sound levels
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Sensitivity: adjustable via onboard potentiometer
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Outputs: Analog (AO) and Digital (DO)
📌 Typical Uses
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Sound-activated LED or buzzer projects
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Clap-activated switches
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Noise level triggering
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Interactive robotics and alarms
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Voice-responsive DIY electronics
📦 Package Includes
A simple and effective sensor to add sound responsiveness to your electronics project, whether you’re building alarms, noise monitors, or interactive devices.
