Play National Anthem in buzzer using Arduino UNO

Things Required

1) Arduino UNO

2) Breadboard

3) Buzzer

4) jumper wire

Circuit diagram

Connect positive terminal of buzzer to arduino digital pin no. 9 and negative terminal to Gnd.

Code

// author Siddharth Haldkar

int speakerPin = 9; //buzzer is connected to Pin 9 of the Board.
int LEDPin = 10;
int length = 155; // the number of notes
char notes[] = “cdeeeeeeeeeeedef eeedddbdc cgggggfgggfag fffeefdfe eeeeedgggff eeeddddbdc cdeeeedef efgggfedfe eeddddbdc cgggggfgggfag fffeefdfe cbc bab aga cc dd ee de f _________ “; // a space represents a rest
int beats[] = { 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 };//Duration of each note
int tempo = 300; //Change song speed here

void playTone(int tone, int duration) { //creating a square wave for the given duration
for (long i = 0; i < duration * 1000L; i += tone * 2) {
digitalWrite(speakerPin, HIGH);
digitalWrite(LEDPin, HIGH);
delayMicroseconds(tone);
digitalWrite(speakerPin, LOW);
digitalWrite(LEDPin, LOW);
delayMicroseconds(tone);
}
}

void playNote(char note, int duration) { //Assigning high time for the notes
char names[] = { ‘c’, ‘d’, ‘e’, ‘f’, ‘g’, ‘a’, ‘b’, ‘C’ };
int tones[] = { 956, 851, 758, 716, 638, 568, 1014, 478 };

// play the tone corresponding to the note name
for (int i = 0; i < 8; i++) {
if (names[i] == note) {
playTone(tones[i], duration);
}
}
}

void setup() {
pinMode(speakerPin, OUTPUT); // Setting pin 9 as an OutPut Pin
pinMode(LEDPin, OUTPUT);
}

void loop() { //Main function
for (int i = 0; i < length; i++) { //For the length of the tune array
if (notes[i] == ‘ ‘) { //take space as rest
delay(beats[i] * tempo); // rest
} else {
playNote(notes[i], beats[i] * tempo); //play the corresponding note for the corresponding beat
}

// pause between notes
delay(tempo / 2);
}
}

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