Arduino UNO Plays the Indian National Anthem – Simple Hardware Prototype

About this project

Hi all,

I developed a Hardware prototype which is playing Indian National Anthem.

Components

First of all We need

• Arduino Board Anyone

• SD Card Module

• Speaker 4ohm

• BC547

• 1k Resistor

Connect all hard wares as the circuit schematic.

You need one library to play your favorite song I found from this link.

This method only work for wav file. so you should convert your song with this settings

• WAV file,

• 8-bit,

• 8-32khz Sample Rate,

• mono.

https://github.com/TMRh20/TMRpcm/wiki#functions

Files easily converted:Using iTunes:

Click _> Edit > Preferences > Import Settings_Change the dropdown to _WAV Encoder_ and Setting: _Custom > 16.000kHz to 32kHz, 8-bit, Mono_Right click any file in iTunes, and select _"Create WAV Version"_

Using Audacity:

Tracks > Stereo Track to Mono    Project Rate (HZ) > set to 32000, 22050, 16000 or 11025    File > Export > Save as type: Other uncompressed files > Options...    Select WAV, Unsigned 8 bit PCM    

Then copy file to SD card using computer

This is the output

Code

• Code

CodeC/C++

#include "SD.h"
#define cs 4
#include "TMRpcm.h"
#include "SPI.h"

TMRpcm Bz;

void setup(){
Bz.speakerPin = 9;
Serial.begin(9600);
if (!SD.begin(cs)) 
{
return;
}
}

void loop()
{ 
  Bz.setVolume(4); 
Bz.play("na.wav");
//delay(300000);
//Bz.play("176.wav");
//delay(300000);
//Bz.play("128.wav");
delay(58000); // Song duration
}

Schematics