Audio Input

This lesson aims to show how to interface an electret microphone with the analog input.

Jun 15, 2016

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audio

input

Components and supplies

1M resistor

2.2k resistor

Arduino UNO

10k resistor

Breadboard 830 points with Wire Kit

Capacitor 10 pF

Electret microphone

TLV2451C

Capacitor 4.7 µF

Project description

Code

Code snippet #1

arduino

1/*
2Read the analog input of a microphone
3*/
4
5int micIN= A0;
6int  audioVal = 0;
7
8void setup() {
9  Serial.begin(9600);
10
11}
12
13void  loop() {
14 audioVal = analogRead(micIN);
15 Serial.println(audioVal);
16 delay(600);
17}

/*
Read the analog input of a microphone
*/

int micIN= A0;
int  audioVal = 0;

void setup() {
  Serial.begin(9600);

}

void  loop() {
 audioVal = analogRead(micIN);
 Serial.println(audioVal);
 delay(600);
}

Downloadable files

Schematic 1

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Intro

Components and supplies

Project description

Code

Downloadable files