About this item

🎤 KY-037 Microphone Sensor Module – Sound Detection Sensor

The KY-037 is a sound detection module equipped with an electret microphone that can detect ambient sounds and changes in sound levels.
With both analog and digital outputs, it is ideal for Arduino, ESP32, Raspberry Pi, and various sound detection and automation projects.

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🛡️ Features & Advantages

• 🎤 Detects ambient sounds and noise levels
• 📡 Analog and digital outputs
• 🔧 Adjustable sensitivity via onboard potentiometer
• ⚡ Compatible with 3.3V and 5V systems
• 🤖 Works with Arduino, ESP32, and Raspberry Pi
• 🧰 Easy integration into electronics projects

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📦 Technical Description

• 🧩 Model: KY-037
• 🎤 Sensor type: Electret microphone
• ⚡ Supply voltage: 3.3V to 5V DC
• 📡 Analog output (AO): measured sound level
• 🔔 Digital output (DO): threshold-based sound detection
• 🔧 Sensitivity adjustment: onboard potentiometer
• 💡 LED indicators: power and detection status

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🛠️ Applications

• 👏 Clap detection projects
• 🏠 Home automation systems
• 🤖 Arduino / ESP32 projects
• 🔊 Sound level monitoring
• 🧪 Educational and experimental electronics

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⚠️ Usage Notes

• ❗ Designed for sound level detection, not voice recognition
• 🔧 Adjust the potentiometer to set sensitivity
• 🌡️ Avoid excessively noisy environments for best results
• 🛡️ Protect the microphone from moisture and dust

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✨ Key Features

• 🎤 Built-in electret microphone
• 📡 Analog and digital outputs
• 🔧 Adjustable sensitivity
• ⚡ 3.3V / 5V compatible
• 📦 Arduino and ESP32 compatible

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📦 Package Contents

• 1 × KY-037 Microphone Sensor Module