3pcs Microphone Noise Decibel Sound Sensor Measurement Module 3p / 4p Interface

Features: - This module can be connected to the analog I / O port, - when speaking to the microphone, the analog value will be changed. - A recorder can be made by reading and saving the analog value. Specifications:

Brick Type	Sensor Brick
Brick Interface	3PIN
Brick Power Supply	5V
Board Size	33 14 1.6mm

Parameter	Min.	Typical	Max.	Unit
Working voltage	4.5	5	5.5	VDC
Digital output voltageVCC=5V	0	-	5	V
Working current5V	-	260	-	uA
Frequency range	100	-	10000	Hz
Sensitivity	-	-50	-	dB

DEMO:

Connect S port of electronic brick of microphone to A0 port of for , and we will use the following program to read the analog value. When the value exceeds the threshold, the LED indicator will flash. 1const int ledPin = 13; // the number of the LED pin
2const int thresholdvalue=400; //The threshold to turn the led on
3void setup() {
4pinMode(ledPin, OUTPUT);
5}
6void loop() {
7 int sensorValue = analogRead(A0); //use A0 to read the electrical signal
8 if(sensorValue>thresholdvalue)
9digitalWrite(ledPin,HIGH); //if the value read from A0 is larger than 400,then light the LED
10 delay(200);
11 digitalWrite(ledPin,LOW);
12}

Package Included:

3 xMicrophone Noise Decibel Sound Sensor Measurement Module