Description: It will play a song (Ode to Joy), and there are 7 leds display cording to the rhythm, believe you'll like it.





Here we go:









Code:





[code]

/*

* define a1 to b5 and assign the frequency value

*/

int a1=523; //alto Do

int a2=587; //alto Re

int a3=659; //alto Mi

int a4=698; //alto Fa

int a5=784; //alto So

int a6=880; //alto La

int a7=988; //alto Xi

int b5=392; //bass So

int PWMPin=9;

/*

* we will support you a sheet which contains all of the frequency belong to notes in every tone.

*/

void setup() {

// put your setup code here, to run once:

pinMode(1, OUTPUT);

pinMode(2, OUTPUT);

pinMode(3, OUTPUT);

pinMode(4, OUTPUT);

pinMode(5, OUTPUT);

pinMode(6, OUTPUT);

pinMode(7, OUTPUT);

pinMode(PWMPin, OUTPUT);

}



void loop() {

// put your main code here, to run repeatedly:

/*

* the following code tone(8, a3) means output pin 8, frequcy is a3

* delay(375) means delay the frequcey for 375ms, all of the code you can modifate

* the numbered musical notation of ODe to Joy:

* 3345|5432|1123|3·22-|

* 3345|5432|1123|2·11-|

* 2231|23431|23432|125-|

* 3345|5432|1123|2·11-|

*/



tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(375);digitalWrite(4, LOW); tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW);

tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW); tone(8, a4);digitalWrite(4, HIGH);delay(375);digitalWrite(4, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW);

tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375); digitalWrite(3, LOW);

tone(8, a3);digitalWrite(3, HIGH); delay(562);digitalWrite(3, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(187.5);digitalWrite(2, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); noTone(8); delay(100); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW);



tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(375);digitalWrite(4, LOW); tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW);

tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(375);digitalWrite(4, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW);

tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW);

tone(8, a2);digitalWrite(2, HIGH); delay(562);digitalWrite(2, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(187.5);digitalWrite(1, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); noTone(8); delay(100); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW);



tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW);

tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(187.5);digitalWrite(3, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(187.5);digitalWrite(4, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW);

tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(187.5);digitalWrite(3, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(187.5);digitalWrite(4, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW);

tone(8, a1);digitalWrite(1, HIGH); delay(562);digitalWrite(1, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(62.5);digitalWrite(2, LOW); tone(8, b5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW); noTone(8); delay(100); tone(8, b5);digitalWrite(5, HIGH); delay(375); digitalWrite(5, LOW);



tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(375);digitalWrite(4, LOW); tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW);

tone(8, a5);digitalWrite(5, HIGH); delay(375);digitalWrite(5, LOW); tone(8, a4);digitalWrite(4, HIGH); delay(375);digitalWrite(4, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375);digitalWrite(3, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375); digitalWrite(2, LOW);

tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); tone(8, a2);digitalWrite(2, HIGH); delay(375);digitalWrite(2, LOW); tone(8, a3);digitalWrite(3, HIGH); delay(375); digitalWrite(3, LOW);

tone(8, a2);digitalWrite(2, HIGH); delay(562);digitalWrite(2, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(187.5);digitalWrite(1, LOW); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW); noTone(8); delay(100); tone(8, a1);digitalWrite(1, HIGH); delay(375);digitalWrite(1, LOW);

}

[/code]





Here's the display on YouTube:





https://www.youtube.com/watch?v=X5BA3rTyATg







Designed by: Davy



