Arduino Plays Indian National Anthem

Made by nissiembeddedlab / Art / Music / Notifications / Security / Voice

About the project

Arduino Indian Citizen.

Project info

Difficulty: Moderate

Platforms: Arduino, Atmel

Estimated time: 1 hour

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	Transistor NPN (2N3904)	x 1
	Speaker: 3W, 4 ohms	x 1
	Micro SD Card Extender	x 1
	Genuino Uno Rev3	x 1

Story

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

Schematics, diagrams and documents

Circuit

BC547 Fritzing Pinout E B C

Code

#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
}

Credits

nissiembeddedlab

I am Embedded Engineer, Arduino and Embedded C Programmer. Had PCB design knowledge with KiCad. I own a youtube channel and manging a facebook page. I own a Lab in my native place to do academic projects.