LaunchPad Jingle Bells Audio Circuit and LED Array

Bring a little cheer by making your own electronic circuit that lights up LEDs and jingles a holiday tune with the TI LaunchPad.

EasyFull instructions provided1 hour8
LaunchPad Jingle Bells Audio Circuit and LED Array

Things used in this project

Hardware components

MSP-EXP432P401R SimpleLink MSP432 LaunchPad
Texas Instruments MSP-EXP432P401R SimpleLink MSP432 LaunchPad
×1
Seeed Sidekick Basic Kit for TI LaunchPad
×1

Software apps and online services

Energia
Texas Instruments Energia

Story

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Schematics

Jingle Bells circuit

Sidekickexamplejinglebells pin numbers bbwmc6neg2

Code

Jinglebellcode.ino

Arduino
#define RED 19
#define GREEN 11
#define BLUE 18
#define tree1 17
#define tree2 15
#define tree3 14

#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_1 260
#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

int redVal;
int greenVal;
int blueVal;

int buzzerPin = 3; 

int melody[] = {
  NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4,
  NOTE_E4, NOTE_G4, NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,

  NOTE_F4, NOTE_F4, NOTE_F4, NOTE_F4, NOTE_E4, NOTE_E4,
  NOTE_E4, NOTE_E4, NOTE_E4, NOTE_D4, NOTE_D4, NOTE_E4,
  NOTE_D4, NOTE_G4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4,
  NOTE_E4, NOTE_E4, NOTE_E4, NOTE_G4, NOTE_C4, NOTE_D4,
  NOTE_E4, NOTE_F4, NOTE_F4, NOTE_F4, NOTE_F4, NOTE_F4,
  NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_G4, NOTE_G4,
  NOTE_F4, NOTE_D4, NOTE_C4};

int noteDurations[] = {
  4, 4, 2, 4, 4, 2,
  4, 4, 3, 8, 1, 4,
  4, 3, 8, 4, 4, 4,
  8, 8, 4, 4, 4, 4,
  2, 2, 4, 4, 2, 4,
  4, 2, 4, 4, 3, 8,
  1, 4, 4, 4, 4, 4,
  4, 4, 8, 8, 4, 4,
  4, 4, 1};

void setup() {
  pinMode (buzzerPin, OUTPUT);
  pinMode (RED, OUTPUT);
  pinMode (GREEN, OUTPUT);
  pinMode (BLUE, OUTPUT);
  pinMode (tree1, OUTPUT);
  pinMode (tree2, OUTPUT);
  pinMode (tree3, OUTPUT);
}

void loop() {
  digitalWrite (RED, LOW);
  digitalWrite (GREEN, HIGH);
  digitalWrite (BLUE, LOW);
  digitalWrite (tree1, HIGH);
  digitalWrite (tree2, HIGH);
  digitalWrite (tree3, HIGH);
 

  for (int thisNote = 0; thisNote < 51; thisNote++) {

    int noteDuration = 1000/noteDurations[thisNote];
    tone(buzzerPin, melody[thisNote], noteDuration);

   int pauseBetweenNotes = noteDuration + 50; // delay between pulse

   delay(pauseBetweenNotes);

   noTone(buzzerPin);
  }
}

Credits

Texas Instruments University Program

Texas Instruments University Program

50 projects • 3 followers
TI helps students discover what's possible to engineer their future. Learn about TI tech for the classroom: www.university.ti.com
Mark Easley

Mark Easley

28 projects • 94 followers
Texas Instruments LaunchPad SW Engineer

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