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LM393 Sound Detection Sensor Module KY-038
Sensors
Product ID:
HF407845
Stock:
30 units available
Details:
The Sound Detector Module is an electronic sensor that detects sound levels in the environment and o...
The Sound Detector Module is an electronic sensor that detects sound levels in the environment and outputs signals that can be read by a microcontroller like Arduino, Raspberry Pi, or ESP32. It is often used in sound-activated projects.
🔹 Key Features:
Microphone Type: Usually electret condenser microphone.
Outputs:
Analog Output (A0): Proportional to sound intensity.
Digital Output (D0): HIGH/LOW signal when sound crosses a set threshold (adjustable via onboard potentiometer).
Onboard Potentiometer: Used to set sensitivity level.
Operating Voltage: 3.3V – 5V (compatible with Arduino and similar boards).
Indicator LED: Lights up when sound exceeds the threshold.
🔹 Working Principle:
The microphone picks up sound waves and converts them into electrical signals.
These signals are processed by an onboard amplifier and comparator.
The module gives:
Digital output → detects if sound exceeds threshold.
Analog output → represents actual sound intensity.
🔹 Applications:
Sound-activated lights or alarms.
Voice-activated switches.
Security systems (detecting claps, knocks, or loud sounds).
Interactive projects (clap switch, robotic control via sound).
🔹 Example (Arduino Use):
Connect A0 → Arduino analog pin (to measure intensity).
Connect D0 → Arduino digital pin (for threshold detection).
Use in projects like clap-controlled lights, robot start/stop by sound, or environmental noise
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PKR 130.00
