Rickroll Box

Inspired by the popular meme, this project plays "Never Gonna Give You Up" by Rick Astley.

Dec 13, 2017

•

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•

27 respects

piezo

music

rickroll

Components and supplies

Resistor 560 ohm

Photo resistor

Arduino UNO

Resistor 10k ohm

LED (generic)

Single Turn Potentiometer- 10k ohms

Pushbutton switch 12mm

Breadboard (generic)

Jumper wires (generic)

Buzzer

Project description

Code

Rick Roll Box Code

arduino

Remember to calibrate the light sensor by keeping box open and exposed to ambient light conditions during initial setup() after upload.

1/*  RickRollBoxCode
2
3    AUTHOR: Samantha Lagestee
4    Copyright   2017 samilagestee at gmail dot com
5
6    This program is free software: you   can redistribute it and/or
7    modify it under the terms of the GNU General Public   License as
8    published by the Free Software Foundation, either version 3 of
9     the License, or (at your option) any later version.
10
11    DISCLAIMER: The   song "Never Gonna Give You Up" by Rick Astley
12    is not the creative property   of the author. This code simply
13    plays a Piezo buzzer rendition of the song.
14*/
15
16#define   a3f    208     // 208 Hz
17#define  b3f    233     // 233 Hz
18#define  b3     247      // 247 Hz
19#define  c4     261     // 261 Hz MIDDLE C
20#define  c4s    277      // 277 Hz
21#define  e4f    311     // 311 Hz    
22#define  f4     349     //   349 Hz 
23#define  a4f    415     // 415 Hz  
24#define  b4f    466     // 466   Hz 
25#define  b4     493     // 493 Hz 
26#define  c5     523     // 523 Hz 
27#define   c5s    554     // 554 Hz
28#define  e5f    622     // 622 Hz  
29#define  f5      698     // 698 Hz 
30#define  f5s    740     // 740 Hz
31#define  a5f    831      // 831 Hz 
32
33#define rest    -1
34
35int piezo = 7;
36int led = 9;
37int   button = 2;
38int sensor = A0;
39
40volatile int beatlength = 100; // determines   tempo
41float beatseparationconstant = 0.3;
42
43int threshold;
44
45int a;   // part index
46int b; // song index
47int c; // lyric index
48
49boolean flag;
50
51//   Parts 1 and 2 (Intro)
52
53int song1_intro_melody[] =
54{c5s, e5f, e5f, f5, a5f,   f5s, f5, e5f, c5s, e5f, rest, a4f, a4f};
55
56int song1_intro_rhythmn[] =
57{6,   10, 6, 6, 1, 1, 1, 1, 6, 10, 4, 2, 10};
58
59// Parts 3 or 5 (Verse 1)
60
61int   song1_verse1_melody[] =
62{ rest, c4s, c4s, c4s, c4s, e4f, rest, c4, b3f, a3f,
63   rest, b3f, b3f, c4, c4s, a3f, a4f, a4f, e4f,
64  rest, b3f, b3f, c4, c4s, b3f,   c4s, e4f, rest, c4, b3f, b3f, a3f,
65  rest, b3f, b3f, c4, c4s, a3f, a3f, e4f,   e4f, e4f, f4, e4f,
66  c4s, e4f, f4, c4s, e4f, e4f, e4f, f4, e4f, a3f,
67  rest,   b3f, c4, c4s, a3f, rest, e4f, f4, e4f
68};
69
70int song1_verse1_rhythmn[] =
71{   2, 1, 1, 1, 1, 2, 1, 1, 1, 5,
72  1, 1, 1, 1, 3, 1, 2, 1, 5,
73  1, 1, 1, 1, 1,   1, 1, 2, 1, 1, 1, 1, 3,
74  1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 4,
75  5, 1, 1, 1,   1, 1, 1, 1, 2, 2,
76  2, 1, 1, 1, 3, 1, 1, 1, 3
77};
78
79char* lyrics_verse1[]   =
80{ "We're ", "no ", "strangers ", "", "to ", "love ", "", "\
\
81",
82   "You ", "know ", "the ", "rules ", "and ", "so ", "do ", "I\
\
83",
84   "A ", "full ", "commitment's ", "", "", "what ", "I'm ", "thinking   ", "", "of", "\
\
85",
86  "You ", "wouldn't ", "", "get ", "this   ", "from ", "any ", "", "other ", "", "guy\
\
87",
88  "I ", "just   ", "wanna ", "", "tell ", "you ", "how ", "I'm ", "feeling", "\
\
89",
90   "Gotta ", "", "make ", "you ", "understand", "", "\
\
91"
92};
93
94//   Parts 4 or 6 (Chorus)
95
96int song1_chorus_melody[] =
97{ b4f, b4f, a4f, a4f,
98   f5, f5, e5f, b4f, b4f, a4f, a4f, e5f, e5f, c5s, c5, b4f,
99  c5s, c5s, c5s, c5s,
100   c5s, e5f, c5, b4f, a4f, a4f, a4f, e5f, c5s,
101  b4f, b4f, a4f, a4f,
102  f5,   f5, e5f, b4f, b4f, a4f, a4f, a5f, c5, c5s, c5, b4f,
103  c5s, c5s, c5s, c5s,
104   c5s, e5f, c5, b4f, a4f, rest, a4f, e5f, c5s, rest
105};
106
107int song1_chorus_rhythmn[]   =
108{ 1, 1, 1, 1,
109  3, 3, 6, 1, 1, 1, 1, 3, 3, 3, 1, 2,
110  1, 1, 1, 1,
111   3, 3, 3, 1, 2, 2, 2, 4, 8,
112  1, 1, 1, 1,
113  3, 3, 6, 1, 1, 1, 1, 3, 3, 3,   1, 2,
114  1, 1, 1, 1,
115  3, 3, 3, 1, 2, 2, 2, 4, 8, 4
116};
117
118char* lyrics_chorus[]   =
119{ "Never ", "", "gonna ", "", "give ", "you ", "up\
\
120",
121   "Never ", "", "gonna ", "", "let ", "you ", "down", "", "\
\
122",
123   "Never ", "", "gonna ", "", "run ", "around ", "", "", "", "and   ", "desert ", "", "you\
\
124",
125  "Never ", "", "gonna ", "", "make   ", "you ", "cry\
\
126",
127  "Never ", "", "gonna ", "", "say ",   "goodbye ", "", "", "\
\
128",
129  "Never ", "", "gonna ", "", "tell   ", "a ", "lie ", "", "", "and ", "hurt ", "you\
\
130"
131};
132
133void   setup()
134{
135  pinMode(piezo, OUTPUT);
136  pinMode(led, OUTPUT);
137  pinMode(button,   INPUT_PULLUP);
138  pinMode(sensor, INPUT);
139  attachInterrupt(digitalPinToInterrupt(button),   getFaster, FALLING);
140  digitalWrite(led, LOW);
141  Serial.begin(9600);
142  flag   = false;
143  a = 4;
144  b = 0;
145  c = 0;
146  threshold = analogRead(sensor)   + 250;
147}
148
149void loop()
150{
151  int sensorreading = analogRead(sensor);
152   if (sensorreading < threshold) { // if bright, play
153    flag = true;
154  }
155   else if (sensorreading > threshold) { // if dark, pause
156    flag = false;
157   }
158
159  // play next step in song
160  if (flag == true) {
161    play();
162   }
163}
164
165void play() {
166  int notelength;
167  if (a == 1 || a == 2) {
168     // intro
169    notelength = beatlength * song1_intro_rhythmn[b];
170    if   (song1_intro_melody[b] > 0) {
171      digitalWrite(led, HIGH);
172      tone(piezo,   song1_intro_melody[b], notelength);
173    }
174    b++;
175    if (b >= sizeof(song1_intro_melody)   / sizeof(int)) {
176      a++;
177      b = 0;
178      c = 0;
179    }
180  }
181   else if (a == 3 || a == 5) {
182    // verse
183    notelength = beatlength *   2 * song1_verse1_rhythmn[b];
184    if (song1_verse1_melody[b] > 0) {
185      digitalWrite(led,   HIGH);
186      Serial.print(lyrics_verse1[c]);
187      tone(piezo, song1_verse1_melody[b],   notelength);
188      c++;
189    }
190    b++;
191    if (b >= sizeof(song1_verse1_melody)   / sizeof(int)) {
192      a++;
193      b = 0;
194      c = 0;
195    }
196  }
197   else if (a == 4 || a == 6) {
198    // chorus
199    notelength = beatlength *   song1_chorus_rhythmn[b];
200    if (song1_chorus_melody[b] > 0) {
201      digitalWrite(led,   HIGH);
202      Serial.print(lyrics_chorus[c]);
203      tone(piezo, song1_chorus_melody[b],   notelength);
204      c++;
205    }
206    b++;
207    if (b >= sizeof(song1_chorus_melody)   / sizeof(int)) {
208      Serial.println("");
209      a++;
210      b = 0;
211       c = 0;
212    }
213  }
214  delay(notelength);
215  noTone(piezo);
216  digitalWrite(led,   LOW);
217  delay(notelength * beatseparationconstant);
218  if (a == 7) { // loop   back around to beginning of song
219    a = 1;
220  }
221}
222
223void getFaster()   { // decrease beat length in order to increase tempo
224  beatlength = beatlength   / 2;
225  if (beatlength < 20) { // loop back to original tempo
226    beatlength   = 100;
227  }
228}
229
230

/*  RickRollBoxCode

    AUTHOR: Samantha Lagestee
    Copyright   2017 samilagestee at gmail dot com

    This program is free software: you   can redistribute it and/or
    modify it under the terms of the GNU General Public   License as
    published by the Free Software Foundation, either version 3 of
     the License, or (at your option) any later version.

    DISCLAIMER: The   song "Never Gonna Give You Up" by Rick Astley
    is not the creative property   of the author. This code simply
    plays a Piezo buzzer rendition of the song.
*/

#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
};

char* lyrics_verse1[]   =
{ "We're ", "no ", "strangers ", "", "to ", "love ", "", "\
\
",
   "You ", "know ", "the ", "rules ", "and ", "so ", "do ", "I\
\
",
   "A ", "full ", "commitment's ", "", "", "what ", "I'm ", "thinking   ", "", "of", "\
\
",
  "You ", "wouldn't ", "", "get ", "this   ", "from ", "any ", "", "other ", "", "guy\
\
",
  "I ", "just   ", "wanna ", "", "tell ", "you ", "how ", "I'm ", "feeling", "\
\
",
   "Gotta ", "", "make ", "you ", "understand", "", "\
\
"
};

//   Parts 4 or 6 (Chorus)

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
};

char* lyrics_chorus[]   =
{ "Never ", "", "gonna ", "", "give ", "you ", "up\
\
",
   "Never ", "", "gonna ", "", "let ", "you ", "down", "", "\
\
",
   "Never ", "", "gonna ", "", "run ", "around ", "", "", "", "and   ", "desert ", "", "you\
\
",
  "Never ", "", "gonna ", "", "make   ", "you ", "cry\
\
",
  "Never ", "", "gonna ", "", "say ",   "goodbye ", "", "", "\
\
",
  "Never ", "", "gonna ", "", "tell   ", "a ", "lie ", "", "", "and ", "hurt ", "you\
\
"
};

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)   + 250;
}

void loop()
{
  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;
  }
}

Rick Roll Box Code

arduino

Remember to calibrate the light sensor by keeping box open and exposed to ambient light conditions during initial setup() after upload.

1/*  RickRollBoxCode
2
3    AUTHOR: Samantha Lagestee
4    Copyright  2017 samilagestee at gmail dot com
5
6    This program is free software: you  can redistribute it and/or
7    modify it under the terms of the GNU General Public  License as
8    published by the Free Software Foundation, either version 3 of
9    the License, or (at your option) any later version.
10
11    DISCLAIMER: The  song "Never Gonna Give You Up" by Rick Astley
12    is not the creative property  of the author. This code simply
13    plays a Piezo buzzer rendition of the song.
14*/
15
16#define  a3f    208     // 208 Hz
17#define  b3f    233     // 233 Hz
18#define  b3     247     // 247 Hz
19#define  c4     261     // 261 Hz MIDDLE C
20#define  c4s    277     // 277 Hz
21#define  e4f    311     // 311 Hz    
22#define  f4     349     //  349 Hz 
23#define  a4f    415     // 415 Hz  
24#define  b4f    466     // 466  Hz 
25#define  b4     493     // 493 Hz 
26#define  c5     523     // 523 Hz 
27#define  c5s    554     // 554 Hz
28#define  e5f    622     // 622 Hz  
29#define  f5     698     // 698 Hz 
30#define  f5s    740     // 740 Hz
31#define  a5f    831     // 831 Hz 
32
33#define rest    -1
34
35int piezo = 7;
36int led = 9;
37int  button = 2;
38int sensor = A0;
39
40volatile int beatlength = 100; // determines  tempo
41float beatseparationconstant = 0.3;
42
43int threshold;
44
45int a;  // part index
46int b; // song index
47int c; // lyric index
48
49boolean flag;
50
51//  Parts 1 and 2 (Intro)
52
53int song1_intro_melody[] =
54{c5s, e5f, e5f, f5, a5f,  f5s, f5, e5f, c5s, e5f, rest, a4f, a4f};
55
56int song1_intro_rhythmn[] =
57{6,  10, 6, 6, 1, 1, 1, 1, 6, 10, 4, 2, 10};
58
59// Parts 3 or 5 (Verse 1)
60
61int  song1_verse1_melody[] =
62{ rest, c4s, c4s, c4s, c4s, e4f, rest, c4, b3f, a3f,
63  rest, b3f, b3f, c4, c4s, a3f, a4f, a4f, e4f,
64  rest, b3f, b3f, c4, c4s, b3f,  c4s, e4f, rest, c4, b3f, b3f, a3f,
65  rest, b3f, b3f, c4, c4s, a3f, a3f, e4f,  e4f, e4f, f4, e4f,
66  c4s, e4f, f4, c4s, e4f, e4f, e4f, f4, e4f, a3f,
67  rest,  b3f, c4, c4s, a3f, rest, e4f, f4, e4f
68};
69
70int song1_verse1_rhythmn[] =
71{  2, 1, 1, 1, 1, 2, 1, 1, 1, 5,
72  1, 1, 1, 1, 3, 1, 2, 1, 5,
73  1, 1, 1, 1, 1,  1, 1, 2, 1, 1, 1, 1, 3,
74  1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 4,
75  5, 1, 1, 1,  1, 1, 1, 1, 2, 2,
76  2, 1, 1, 1, 3, 1, 1, 1, 3
77};
78
79char* lyrics_verse1[]  =
80{ "We're ", "no ", "strangers ", "", "to ", "love ", "", "\
\
81",
82  "You ", "know ", "the ", "rules ", "and ", "so ", "do ", "I\
\
83",
84  "A ", "full ", "commitment's ", "", "", "what ", "I'm ", "thinking  ", "", "of", "\
\
85",
86  "You ", "wouldn't ", "", "get ", "this  ", "from ", "any ", "", "other ", "", "guy\
\
87",
88  "I ", "just  ", "wanna ", "", "tell ", "you ", "how ", "I'm ", "feeling", "\
\
89",
90  "Gotta ", "", "make ", "you ", "understand", "", "\
\
91"
92};
93
94//  Parts 4 or 6 (Chorus)
95
96int song1_chorus_melody[] =
97{ b4f, b4f, a4f, a4f,
98  f5, f5, e5f, b4f, b4f, a4f, a4f, e5f, e5f, c5s, c5, b4f,
99  c5s, c5s, c5s, c5s,
100  c5s, e5f, c5, b4f, a4f, a4f, a4f, e5f, c5s,
101  b4f, b4f, a4f, a4f,
102  f5,  f5, e5f, b4f, b4f, a4f, a4f, a5f, c5, c5s, c5, b4f,
103  c5s, c5s, c5s, c5s,
104  c5s, e5f, c5, b4f, a4f, rest, a4f, e5f, c5s, rest
105};
106
107int song1_chorus_rhythmn[]  =
108{ 1, 1, 1, 1,
109  3, 3, 6, 1, 1, 1, 1, 3, 3, 3, 1, 2,
110  1, 1, 1, 1,
111  3, 3, 3, 1, 2, 2, 2, 4, 8,
112  1, 1, 1, 1,
113  3, 3, 6, 1, 1, 1, 1, 3, 3, 3,  1, 2,
114  1, 1, 1, 1,
115  3, 3, 3, 1, 2, 2, 2, 4, 8, 4
116};
117
118char* lyrics_chorus[]  =
119{ "Never ", "", "gonna ", "", "give ", "you ", "up\
\
120",
121  "Never ", "", "gonna ", "", "let ", "you ", "down", "", "\
\
122",
123  "Never ", "", "gonna ", "", "run ", "around ", "", "", "", "and  ", "desert ", "", "you\
\
124",
125  "Never ", "", "gonna ", "", "make  ", "you ", "cry\
\
126",
127  "Never ", "", "gonna ", "", "say ",  "goodbye ", "", "", "\
\
128",
129  "Never ", "", "gonna ", "", "tell  ", "a ", "lie ", "", "", "and ", "hurt ", "you\
\
130"
131};
132
133void  setup()
134{
135  pinMode(piezo, OUTPUT);
136  pinMode(led, OUTPUT);
137  pinMode(button,  INPUT_PULLUP);
138  pinMode(sensor, INPUT);
139  attachInterrupt(digitalPinToInterrupt(button),  getFaster, FALLING);
140  digitalWrite(led, LOW);
141  Serial.begin(9600);
142  flag  = false;
143  a = 4;
144  b = 0;
145  c = 0;
146  threshold = analogRead(sensor)  + 250;
147}
148
149void loop()
150{
151  int sensorreading = analogRead(sensor);
152  if (sensorreading < threshold) { // if bright, play
153    flag = true;
154  }
155  else if (sensorreading > threshold) { // if dark, pause
156    flag = false;
157  }
158
159  // play next step in song
160  if (flag == true) {
161    play();
162  }
163}
164
165void play() {
166  int notelength;
167  if (a == 1 || a == 2) {
168    // intro
169    notelength = beatlength * song1_intro_rhythmn[b];
170    if  (song1_intro_melody[b] > 0) {
171      digitalWrite(led, HIGH);
172      tone(piezo,  song1_intro_melody[b], notelength);
173    }
174    b++;
175    if (b >= sizeof(song1_intro_melody)  / sizeof(int)) {
176      a++;
177      b = 0;
178      c = 0;
179    }
180  }
181  else if (a == 3 || a == 5) {
182    // verse
183    notelength = beatlength *  2 * song1_verse1_rhythmn[b];
184    if (song1_verse1_melody[b] > 0) {
185      digitalWrite(led,  HIGH);
186      Serial.print(lyrics_verse1[c]);
187      tone(piezo, song1_verse1_melody[b],  notelength);
188      c++;
189    }
190    b++;
191    if (b >= sizeof(song1_verse1_melody)  / sizeof(int)) {
192      a++;
193      b = 0;
194      c = 0;
195    }
196  }
197  else if (a == 4 || a == 6) {
198    // chorus
199    notelength = beatlength *  song1_chorus_rhythmn[b];
200    if (song1_chorus_melody[b] > 0) {
201      digitalWrite(led,  HIGH);
202      Serial.print(lyrics_chorus[c]);
203      tone(piezo, song1_chorus_melody[b],  notelength);
204      c++;
205    }
206    b++;
207    if (b >= sizeof(song1_chorus_melody)  / sizeof(int)) {
208      Serial.println("");
209      a++;
210      b = 0;
211      c = 0;
212    }
213  }
214  delay(notelength);
215  noTone(piezo);
216  digitalWrite(led,  LOW);
217  delay(notelength * beatseparationconstant);
218  if (a == 7) { // loop  back around to beginning of song
219    a = 1;
220  }
221}
222
223void getFaster()  { // decrease beat length in order to increase tempo
224  beatlength = beatlength  / 2;
225  if (beatlength < 20) { // loop back to original tempo
226    beatlength  = 100;
227  }
228}
229
230

/*  RickRollBoxCode

    AUTHOR: Samantha Lagestee
    Copyright  2017 samilagestee at gmail dot com

    This program is free software: you  can redistribute it and/or
    modify it under the terms of the GNU General Public  License as
    published by the Free Software Foundation, either version 3 of
    the License, or (at your option) any later version.

    DISCLAIMER: The  song "Never Gonna Give You Up" by Rick Astley
    is not the creative property  of the author. This code simply
    plays a Piezo buzzer rendition of the song.
*/

#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
};

char* lyrics_verse1[]  =
{ "We're ", "no ", "strangers ", "", "to ", "love ", "", "\
\
",
  "You ", "know ", "the ", "rules ", "and ", "so ", "do ", "I\
\
",
  "A ", "full ", "commitment's ", "", "", "what ", "I'm ", "thinking  ", "", "of", "\
\
",
  "You ", "wouldn't ", "", "get ", "this  ", "from ", "any ", "", "other ", "", "guy\
\
",
  "I ", "just  ", "wanna ", "", "tell ", "you ", "how ", "I'm ", "feeling", "\
\
",
  "Gotta ", "", "make ", "you ", "understand", "", "\
\
"
};

//  Parts 4 or 6 (Chorus)

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
};

char* lyrics_chorus[]  =
{ "Never ", "", "gonna ", "", "give ", "you ", "up\
\
",
  "Never ", "", "gonna ", "", "let ", "you ", "down", "", "\
\
",
  "Never ", "", "gonna ", "", "run ", "around ", "", "", "", "and  ", "desert ", "", "you\
\
",
  "Never ", "", "gonna ", "", "make  ", "you ", "cry\
\
",
  "Never ", "", "gonna ", "", "say ",  "goodbye ", "", "", "\
\
",
  "Never ", "", "gonna ", "", "tell  ", "a ", "lie ", "", "", "and ", "hurt ", "you\
\
"
};

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)  + 250;
}

void loop()
{
  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;
  }
}

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