Final SPA Documentation: A Rick Roll Box

For the final SPA project, I wanted to use Arduino to create a surprise box prank that would play Never Give You Up by Rick Astley to prank my brother. This is the link to the Arduino project that I would like to replicate: https://create.arduino.cc/projecthub/slagestee/rickroll-box-3c2245 (I just didn’t want an output to be created). 

It took a little bit of finicking as the tone wouldn’t play on the piezo speaker (in an ideal world with no pandemic, I would’ve tried this with an mp3 speaker but couldn’t get one in time). I had to use a toneMelody code to check if the piezo speaker would work and also had to check if each part was working. 

As seen in the video, the tone plays when the photoresistor is uncovered but stops when it is covered. I still have to play with the photoresistor values to have made it less finicky (take in the shadows in the environment). I also took out the potentiometer as it was causing my prank more problems.

To develop this further, it would be nice to attach a servo to it and with it, I would attach a photo of Rick Astley to take the prank even further. 

Here is my code adapted from the tutorial:

#define  a3f    208     // 208 Hz

#define  b3f    233     // 233 Hz

#define  b3     247     // 247 Hz

#define  c4     261     // 261 Hz MIDDLE C

#define  c4s    277     // 277 Hz

#define  e4f    311     // 311 Hz    

#define  f4     349     // 349 Hz 

#define  a4f    415     // 415 Hz  

#define  b4f    466     // 466 Hz 

#define  b4     493     // 493 Hz 

#define  c5     523     // 523 Hz 

#define  c5s    554     // 554 Hz

#define  e5f    622     // 622 Hz  

#define  f5     698     // 698 Hz 

#define  f5s    740     // 740 Hz

#define  a5f    831     // 831 Hz 

#define rest    -1

int piezo = 7;

int led = 9;

int button = 2;

int sensor = A0;

volatile int beatlength = 100; // determines tempo

float beatseparationconstant = 0.3;

int threshold;

int a; // part index

int b; // song index

int c; // lyric index

boolean flag;

// Parts 1 and 2 (Intro)

int song1_intro_melody[] =

{c5s, e5f, e5f, f5, a5f, f5s, f5, e5f, c5s, e5f, rest, a4f, a4f};

int song1_intro_rhythmn[] =

{6, 10, 6, 6, 1, 1, 1, 1, 6, 10, 4, 2, 10};

// Parts 3 or 5 (Verse 1)

int song1_verse1_melody[] =

{ rest, c4s, c4s, c4s, c4s, e4f, rest, c4, b3f, a3f,

  rest, b3f, b3f, c4, c4s, a3f, a4f, a4f, e4f,

  rest, b3f, b3f, c4, c4s, b3f, c4s, e4f, rest, c4, b3f, b3f, a3f,

  rest, b3f, b3f, c4, c4s, a3f, a3f, e4f, e4f, e4f, f4, e4f,

  c4s, e4f, f4, c4s, e4f, e4f, e4f, f4, e4f, a3f,

  rest, b3f, c4, c4s, a3f, rest, e4f, f4, e4f

};

int song1_verse1_rhythmn[] =

{ 2, 1, 1, 1, 1, 2, 1, 1, 1, 5,

  1, 1, 1, 1, 3, 1, 2, 1, 5,

  1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3,

  1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 4,

  5, 1, 1, 1, 1, 1, 1, 1, 2, 2,

  2, 1, 1, 1, 3, 1, 1, 1, 3

};

int song1_chorus_melody[] =

{ b4f, b4f, a4f, a4f,

  f5, f5, e5f, b4f, b4f, a4f, a4f, e5f, e5f, c5s, c5, b4f,

  c5s, c5s, c5s, c5s,

  c5s, e5f, c5, b4f, a4f, a4f, a4f, e5f, c5s,

  b4f, b4f, a4f, a4f,

  f5, f5, e5f, b4f, b4f, a4f, a4f, a5f, c5, c5s, c5, b4f,

  c5s, c5s, c5s, c5s,

  c5s, e5f, c5, b4f, a4f, rest, a4f, e5f, c5s, rest

};

int song1_chorus_rhythmn[] =

{ 1, 1, 1, 1,

  3, 3, 6, 1, 1, 1, 1, 3, 3, 3, 1, 2,

  1, 1, 1, 1,

  3, 3, 3, 1, 2, 2, 2, 4, 8,

  1, 1, 1, 1,

  3, 3, 6, 1, 1, 1, 1, 3, 3, 3, 1, 2,

  1, 1, 1, 1,

  3, 3, 3, 1, 2, 2, 2, 4, 8, 4

};

void setup()

{

  pinMode(piezo, OUTPUT);

  pinMode(led, OUTPUT);

  pinMode(button, INPUT_PULLUP);

  pinMode(sensor, INPUT);

  attachInterrupt(digitalPinToInterrupt(button), getFaster, FALLING);

  digitalWrite(led, LOW);

  Serial.begin(9600);

  flag = false;

  a = 4;

  b = 0;

  c = 0;

  threshold = analogRead(sensor) + 0;

}

void loop()

{

  //play();

  int sensorreading = analogRead(sensor);

  if (sensorreading < threshold) { // if bright, play

    flag = true;

  }

    else if (sensorreading > threshold) { // if dark, pause

    flag = false;

  }

  //play next step in song

  if (flag == true) {

    play();

  }

}

void play() {

  int notelength;

  if (a == 1 || a == 2) {

    // intro

    notelength = beatlength * song1_intro_rhythmn[b];

    if (song1_intro_melody[b] > 0) {

      digitalWrite(led, HIGH);

      tone(piezo, song1_intro_melody[b], notelength);

    }

    b++;

    if (b >= sizeof(song1_intro_melody) / sizeof(int)) {

      a++;

      b = 0;

      c = 0;

    }

  }

  else if (a == 3 || a == 5) {

    // verse

    notelength = beatlength * 2 * song1_verse1_rhythmn[b];

    if (song1_verse1_melody[b] > 0) {

      digitalWrite(led, HIGH);

      //Serial.print(lyrics_verse1[c]);

      tone(piezo, song1_verse1_melody[b], notelength);

      c++;

    }

    b++;

    if (b >= sizeof(song1_verse1_melody) / sizeof(int)) {

      a++;

      b = 0;

      c = 0;

    }

  }

  else if (a == 4 || a == 6) {

    // chorus

    notelength = beatlength * song1_chorus_rhythmn[b];

    if (song1_chorus_melody[b] > 0) {

      digitalWrite(led, HIGH);

      //Serial.print(lyrics_chorus[c]);

      tone(piezo, song1_chorus_melody[b], notelength);

      c++;

    }

    b++;

    if (b >= sizeof(song1_chorus_melody) / sizeof(int)) {

      //Serial.println("");

      a++;

      b = 0;

      c = 0;

    }

  }

  delay(notelength);

  noTone(piezo);

  digitalWrite(led, LOW);

  delay(notelength * beatseparationconstant);

  if (a == 7) { // loop back around to beginning of song

    a = 1;

  }

}

void getFaster() { // decrease beat length in order to increase tempo

  beatlength = beatlength / 2;

  if (beatlength < 20) { // loop back to original tempo

    beatlength = 100;

  }

}