music with arduino
lets play some music¶
Make some music with your board and a simple buzzer, document it with some images, videos, your experiencies, problems and reflections about what you learned..
first step for this task was to c o n n e c t. sounds simple yet always takes some time to get the right pins..
for this task we navigated in this webpage https://github.com/robsoncouto/arduino-songs several songs. we decided together with my roommate Korbi to mix up the “Ode to Joy” by Beethoven’s Symphony No. 9.
we added a increasing randomness / generative variation on the ode
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978
#define REST 0
// change this to whichever pin you want to use
int buzzer = A0;
// notes of the melody followed by the duration.
// a 4 means a quarter note, 8 an eighteenth , 16 sixteenth, so on
// !!negative numbers are used to represent dotted notes,
// so -4 means a dotted quarter note, that is, a quarter plus an eighteenth!!
int melody[] = {
NOTE_E4,4, NOTE_E4,4, NOTE_F4,4, NOTE_G4,4, NOTE_G4,4, NOTE_F4,4, NOTE_E4,4, NOTE_D4,4, NOTE_C4,4, NOTE_C4,4, NOTE_D4,4, NOTE_E4,4,
NOTE_E4,-4, NOTE_D4,8, NOTE_D4,2, NOTE_E4,4, NOTE_E4,4, NOTE_F4,4, NOTE_G4,4,NOTE_G4,4, NOTE_F4,4, NOTE_E4,4, NOTE_D4,4,
NOTE_C4,4,NOTE_C4,4, NOTE_D4,4, NOTE_E4,4, NOTE_D4,-4, NOTE_C4,8, NOTE_C4,2, NOTE_D4,4, NOTE_D4,4, NOTE_E4,4,NOTE_C4,4,
NOTE_D4,4, NOTE_E4,8, NOTE_F4,8, NOTE_E4,4, NOTE_C4,4,
NOTE_D4,4, NOTE_E4,8, NOTE_F4,8, NOTE_E4,4, NOTE_D4,4,
NOTE_C4,4, NOTE_D4,4, NOTE_G3,2, NOTE_E4,4, NOTE_E4,4, NOTE_F4,4, NOTE_G4,4,
NOTE_G4,4, NOTE_F4,4, NOTE_E4,4, NOTE_D4,4,
NOTE_C4,4, NOTE_C4,4, NOTE_D4,4, NOTE_E4,4,
NOTE_D4,-4, NOTE_C4,8, NOTE_C4,2
};
void setup() {
Serial.begin(9600);
randomSeed(analogRead(0));
}
void loop() {
//randomSeed(analogRead(A12));
long randNumber;
//delay(1000);
// change this to make the song slower or faster
//int tempo= randNumber*7;
int tempo = 200;
// sizeof gives the number of bytes, each int value is composed of two bytes (16 bits)
// there are two values per note (pitch and duration), so for each note there are four bytes
int notes=sizeof(melody)/sizeof(melody[0])/2;
//calculating a random number b
// this calculates the duration of a whole note in ms (60s/tempo)*4 beats
int wholenote = (60000 * 4) / tempo;
int divider = 0, noteDuration = 0;
//a variable for a random number
for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {
// calculates the duration of each note
divider = melody[thisNote + 1];
if (divider > 0) {
// regular note, just proceed
noteDuration = (wholenote) / divider;
} else if (divider < 0) {
// dotted notes are represented with negative durations!!
noteDuration = (wholenote) / abs(divider);
noteDuration *= 1.5; // increases the duration in half for dotted notes
}
// we only play the note for 90% of the duration, leaving 10% as a pause
tone(buzzer, melody[thisNote], noteDuration*0.9);
// Wait for the specief duration before playing the next note.
delay(noteDuration);
// stop the waveform generation before the next note.
noTone(buzzer);
//VARIATIONS - change random 5 notes in the melody
int randomNotesToBeAdded [] = {0,0,0,0,0, 0};
//making sure we're not selecting the length duration numbers in melody (eg. -4, 4, 8)
randNumber = random(100);
Serial.print("randNumber: ");
Serial.println(randNumber);
if (randNumber%2 != 0) {
randNumber++;
}
for (int i = 0; i <= 4; i++) {
randomNotesToBeAdded [i] = melody [randNumber + i*2];
}
//randomSeed(analogRead(A12));
long randomLocationInMelody = random(100);
Serial.print("randomLocationInMelody: ");
Serial.println(randomLocationInMelody);
//delay(1000);
if (randomLocationInMelody%2 != 0) {
randomLocationInMelody++;
}
for (int i= 0; i<= 4; i++) {
int j = randomLocationInMelody;
melody[j] = randomNotesToBeAdded [i];
j++;
}
}
}
Last update: June 21, 2023