KY-037: Sensitive Microphone - Tkkrlab Arduino Cursus

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  • KY-038: Microphone sound sensor
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Tkkrlab Arduino cursus > Sensoren > KY-037: Sensitive microphone

• Microphone sound detection module
• Connecting to the Arduino
• Example code: Digital output
• Example Code : Analog output

KY-037: Sensitive microphone

Buy this 37 in 1 kit.

Microphone sound detection module

For sound detection Module has two outputs:

• AO, analog output, real-time output voltage signal of the microphone
• DO, when the sound intensity reaches a certain threshold, the output high and low signal

The threshold-sensitivity can be adjusted via potentiometer on the sensor

Connecting to the Arduino

• Pin + to Arduino 5+
• Pin - to Arduino -
• Pin A0 to Arduino A0 (for analog program)
• Pin D0 to Arduino 13 (for digital program)

Example code: Digital output

int Led = 13 ;// define LED Interface int buttonpin = 3; // define D0 Sensor Interface int val = 0;// define numeric variables val void setup () { pinMode (Led, OUTPUT) ;// define LED as output interface pinMode (buttonpin, INPUT) ;// output interface D0 is defined sensor } void loop () { val = digitalRead(buttonpin);// digital interface will be assigned a value of pin 3 to read val if (val == HIGH) // When the sound detection module detects a signal, LED flashes { digitalWrite (Led, HIGH); } else { digitalWrite (Led, LOW); } }

Example Code : Analog output

int sensorPin = A0; // select the input pin for the potentiometer int ledPin = 13; // select the pin for the LED int sensorValue = 0; // variable to store the value coming from the sensor void setup () { pinMode (ledPin, OUTPUT); Serial.begin (9600); } void loop () { sensorValue = analogRead (sensorPin); digitalWrite (ledPin, HIGH); delay (sensorValue); digitalWrite (ledPin, LOW); delay (sensorValue); Serial.println (sensorValue, DEC); }