The Sound Sensor Module, is an microphone integrated into an electronic circuit, used to detected Sound signals.
So that it is used in many devices to capture and record sound, and it can also be used to control electronic circuits by sound.
In this post we will learn: How To Use Sound Sensor With Arduino.
Electronic components needed :
- 1 Resistance ( 220 Ohm )
- 1 Led
- Sound Sensor Module KY-038
- Electrical wires
- Arduino UNO
- Breadboard
How To Use Sound Sensor With Arduino, Arduino project with code
Schema of the circuit :

Arduino programming code :
const int ledpin=11; const int soundpin=A2; const int threshold=200; // By www.andprof.com void setup() { Serial.begin(9600); pinMode(ledpin,OUTPUT); pinMode(soundpin,INPUT); } void loop() { // reads analog data from sound sensor int soundsens=analogRead(soundpin); if (soundsens>=threshold) { //turns led on digitalWrite(ledpin,HIGH); delay(1000); } else{ digitalWrite(ledpin,LOW); } }
Explainer video :
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