🔹 Sound Sensor Module – KY-037
The KY-037 Sound Sensor Module is designed to detect sound intensity in the environment. It uses a microphone and amplifier circuit to capture audio signals and convert them into corresponding voltage levels. The sensitivity can be adjusted via the onboard potentiometer.
This module provides both:
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Analog output (AO): proportional to sound intensity.
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Digital output (DO): high/low signal based on threshold setting.
âś… Specifications:
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Model: KY-037
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Operating Voltage: 3.3V – 5V
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Output: Analog & Digital
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Onboard high-sensitivity microphone
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Adjustable sensitivity via potentiometer
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Dimensions: approx. 3.5cm x 1.5cm
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Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, etc.
📦 Applications:
✔️ Voice-activated projects
✔️ Sound-controlled switches
✔️ Security/alarm systems
✔️ Sound level detection
✔️ DIY electronics and robotics
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