Sound Sensor Module (KY-038 Microphone Module)
Sensor
Part Number / SKU: KY-038
📋 Technical Specifications
Type: Microphone Sound Sensor Module
Model: KY-038
Operating Voltage: 3.3V – 5V
Output Type: Analog (A0) & Digital (D0)
Sensitivity: Adjustable (Potentiometer)
Microphone Type: Electret Microphone
Indicator LED: Yes
Mounting: PCB Module
🔹 Sound Sensor (KY-038) क्या है?
यह एक microphone based sensor module है जो sound (आवाज़) detect करता है।
🔹 यह क्या detect करता है?
Clap (ताली)
आवाज / noise
vibration (limited)
🔹 Pins (Pin Configuration)
Pin Name काम
VCC Power 3.3V–5V
GND Ground 0V
DO Digital Output ON/OFF signal
AO Analog Output Sound level
🔹 यह कैसे काम करता है?
Microphone sound पकड़ता है
Signal amplifier से बढ़ता है
Output Arduino या circuit को मिलता है
🔹 Sensitivity Control
👉 Potentiometer घुमाकर sensitivity सेट कर सकते हो
👉 ज्यादा घुमाओ → ज्यादा sensitive
🔹 कहाँ use होता है?
Clap switch (ताली से ON/OFF)
Sound detection system
Security alarm
Arduino projects
Voice trigger circuits
🔹 Simple Example
👉 ताली बजाओ → LED ON
👉 दोबारा ताली → LED OFF
🔹 Important Tips
Noise से false trigger हो सकता है
Sensitivity सही adjust करो
Stable power supply use करो
🔹 What is KY-038 Sound Sensor?
It is a microphone-based sensor module used to detect sound.
🔹 What does it detect?
Claps
Noise
Sound levels
🔹 Pin Configuration
Pin Function
VCC Power
GND Ground
DO Digital Output
AO Analog Output
🔹 Working
Microphone captures sound
Signal is amplified
Output is given as analog or digital
🔹 Sensitivity
Adjustable using potentiometer
Higher sensitivity = detects smaller sound
🔹 Applications
Clap switch
Sound detection
Alarm systems
Arduino projects
🔹 Tips
Avoid noisy environment
Adjust sensitivity properly
Use stable power supply