Sea Turtle Toy Audio Mod

Modded my daughter's Fisher Price Sea Turtle toy to play custom audio files.

Apr 11, 2022

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2856 views

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1 respects

audio

toys

kids

Components and supplies

Tactile Switch (button/toggle switch)

DFPlayer - A Mini MP3 Player

Resistor 330 ohm

Tactile Switch, Top Actuated

Fisher Price Sit-to-Crawl Sea Turtle

Resistor 1k ohm

Slide Switch (DPDT)

Perfboard

Arduino Nano Every

5 mm LED: Red

Tools and machines

Soldering iron (generic)

Wire (24 gauge)

Super Glue

Tape, Electrical

Tape, Velcro® Stick On Tape/Strip

Screwdriver

Rotary Tool (Dremel)

Project description

Code

Sea Turtle Mod - Code - Main file

arduino

1#include "Led.h"
2#include <DFPlayerMini_Fast.h>
3
4// LED Pins
5const  int LED_1_PIN = 3;
6const int LED_1_PATTERN[patternSize] = {400, 400, 400, 400};
7const  int LED_2_PIN = 6;
8const int LED_2_PATTERN[patternSize] = {400, 400, 400, 400};
9
10//  Led object init
11Led led1(LED_1_PIN);
12Led led2(LED_2_PIN);
13
14// Create  the Player object
15DFPlayerMini_Fast player;
16
17// Pin for play button
18const  int PLAY_BTN = 12;
19
20// DFPlayer Control States
21int fileCount;
22bool toggleState  = 1;
23bool lastToggleState = 1;
24bool busyState = 0;
25int lastTrack = 0; //  0 is no track played
26
27void setup() {
28  
29  // Init USB serial port for  debugging
30  Serial.begin(9600);
31  
32  // Init Serial1 for DFPlayer Mini
33  Serial1.begin(9600);
34  player.begin(Serial1, false, 500);
35
36  delay(1000);
37  
38  // Set volume
39  player.volume(26);
40  delay(500);
41
42  // Get number  of tracks
43  fileCount = player.numSdTracks();
44  delay(500);
45
46  // Init  play button pin
47  pinMode(PLAY_BTN, INPUT_PULLUP);
48  
49  // initialize leds,  turn them on, and load blink patterns
50  led1.init();
51  led1.on();
52  led1.loadPattern(LED_1_PATTERN);
53  
54  led2.init();
55  led2.on();
56  led2.loadPattern(LED_2_PATTERN);
57  
58}
59
60void  loop() {
61
62  // get toggle state
63  toggleState = digitalRead(PLAY_BTN);
64
65  // get busy state
66  busyState = player.isPlaying();
67
68// Debug states
69  Serial.print("Busy: ");
70  Serial.print(busyState);
71  Serial.print(" Last  Track: ");
72  Serial.print(lastTrack);
73  Serial.print(" Toggle: ");
74  Serial.print(toggleState);
75  Serial.print(" Last Toggle: ");
76  Serial.print(lastToggleState);
77  Serial.print(" File Count: ");
78  Serial.println(fileCount);
79
80  // if  button has been pressed and track is not playing, play the next track
81  if (!toggleState  and lastToggleState) {
82    lastToggleState = 0;
83    if (lastTrack == fileCount)  {
84      lastTrack = 0;
85    }
86    lastTrack++;
87    player.playFromMP3Folder(lastTrack);
88    delay(500);
89  } else if (toggleState and !lastToggleState) {
90    lastToggleState  = 1;
91  }
92  
93  // run blink pattern for each led for duration (blinkDur)
94  if (busyState) {
95    led1.blinkPattern();
96    led2.blinkPattern();
97  }
98
99}
100

#include "Led.h"
#include <DFPlayerMini_Fast.h>

// LED Pins
const  int LED_1_PIN = 3;
const int LED_1_PATTERN[patternSize] = {400, 400, 400, 400};
const  int LED_2_PIN = 6;
const int LED_2_PATTERN[patternSize] = {400, 400, 400, 400};

//  Led object init
Led led1(LED_1_PIN);
Led led2(LED_2_PIN);

// Create  the Player object
DFPlayerMini_Fast player;

// Pin for play button
const  int PLAY_BTN = 12;

// DFPlayer Control States
int fileCount;
bool toggleState  = 1;
bool lastToggleState = 1;
bool busyState = 0;
int lastTrack = 0; //  0 is no track played

void setup() {
  
  // Init USB serial port for  debugging
  Serial.begin(9600);
  
  // Init Serial1 for DFPlayer Mini
  Serial1.begin(9600);
  player.begin(Serial1, false, 500);

  delay(1000);
  
  // Set volume
  player.volume(26);
  delay(500);

  // Get number  of tracks
  fileCount = player.numSdTracks();
  delay(500);

  // Init  play button pin
  pinMode(PLAY_BTN, INPUT_PULLUP);
  
  // initialize leds,  turn them on, and load blink patterns
  led1.init();
  led1.on();
  led1.loadPattern(LED_1_PATTERN);
  
  led2.init();
  led2.on();
  led2.loadPattern(LED_2_PATTERN);
  
}

void  loop() {

  // get toggle state
  toggleState = digitalRead(PLAY_BTN);

  // get busy state
  busyState = player.isPlaying();

// Debug states
  Serial.print("Busy: ");
  Serial.print(busyState);
  Serial.print(" Last  Track: ");
  Serial.print(lastTrack);
  Serial.print(" Toggle: ");
  Serial.print(toggleState);
  Serial.print(" Last Toggle: ");
  Serial.print(lastToggleState);
  Serial.print(" File Count: ");
  Serial.println(fileCount);

  // if  button has been pressed and track is not playing, play the next track
  if (!toggleState  and lastToggleState) {
    lastToggleState = 0;
    if (lastTrack == fileCount)  {
      lastTrack = 0;
    }
    lastTrack++;
    player.playFromMP3Folder(lastTrack);
    delay(500);
  } else if (toggleState and !lastToggleState) {
    lastToggleState  = 1;
  }
  
  // run blink pattern for each led for duration (blinkDur)
  if (busyState) {
    led1.blinkPattern();
    led2.blinkPattern();
  }

}

Sea Turtle Mod - Code - Led.h

arduino

1#ifndef MY_LED_H
2#define MY_LED_H
3
4#include <Arduino.h>
5
6const   int patternSize = 4;
7
8class Led {
9  private:
10    byte pin;
11    unsigned   long lastBlink = 0;
12    int blinkStep = 0;
13    bool state = HIGH;
14  public:
15     int pattern[patternSize];
16    Led(byte pin);
17    void init();
18    void   off();
19    void on();
20    void loadPattern(int arr[patternSize]);
21    void   blinkPattern();
22};
23
24#endif
25

#ifndef MY_LED_H
#define MY_LED_H

#include <Arduino.h>

const   int patternSize = 4;

class Led {
  private:
    byte pin;
    unsigned   long lastBlink = 0;
    int blinkStep = 0;
    bool state = HIGH;
  public:
     int pattern[patternSize];
    Led(byte pin);
    void init();
    void   off();
    void on();
    void loadPattern(int arr[patternSize]);
    void   blinkPattern();
};

#endif

Sea Turtle Mod - Code - Main file

arduino

1#include "Led.h"
2#include <DFPlayerMini_Fast.h>
3
4// LED Pins
5const   int LED_1_PIN = 3;
6const int LED_1_PATTERN[patternSize] = {400, 400, 400, 400};
7const   int LED_2_PIN = 6;
8const int LED_2_PATTERN[patternSize] = {400, 400, 400, 400};
9
10//   Led object init
11Led led1(LED_1_PIN);
12Led led2(LED_2_PIN);
13
14// Create   the Player object
15DFPlayerMini_Fast player;
16
17// Pin for play button
18const   int PLAY_BTN = 12;
19
20// DFPlayer Control States
21int fileCount;
22bool toggleState   = 1;
23bool lastToggleState = 1;
24bool busyState = 0;
25int lastTrack = 0; //   0 is no track played
26
27void setup() {
28  
29  // Init USB serial port for   debugging
30  Serial.begin(9600);
31  
32  // Init Serial1 for DFPlayer Mini
33   Serial1.begin(9600);
34  player.begin(Serial1, false, 500);
35
36  delay(1000);
37   
38  // Set volume
39  player.volume(26);
40  delay(500);
41
42  // Get number   of tracks
43  fileCount = player.numSdTracks();
44  delay(500);
45
46  // Init   play button pin
47  pinMode(PLAY_BTN, INPUT_PULLUP);
48  
49  // initialize leds,   turn them on, and load blink patterns
50  led1.init();
51  led1.on();
52  led1.loadPattern(LED_1_PATTERN);
53   
54  led2.init();
55  led2.on();
56  led2.loadPattern(LED_2_PATTERN);
57  
58}
59
60void   loop() {
61
62  // get toggle state
63  toggleState = digitalRead(PLAY_BTN);
64
65   // get busy state
66  busyState = player.isPlaying();
67
68// Debug states
69   Serial.print("Busy: ");
70  Serial.print(busyState);
71  Serial.print(" Last   Track: ");
72  Serial.print(lastTrack);
73  Serial.print(" Toggle: ");
74   Serial.print(toggleState);
75  Serial.print(" Last Toggle: ");
76  Serial.print(lastToggleState);
77   Serial.print(" File Count: ");
78  Serial.println(fileCount);
79
80  // if   button has been pressed and track is not playing, play the next track
81  if (!toggleState   and lastToggleState) {
82    lastToggleState = 0;
83    if (lastTrack == fileCount)   {
84      lastTrack = 0;
85    }
86    lastTrack++;
87    player.playFromMP3Folder(lastTrack);
88     delay(500);
89  } else if (toggleState and !lastToggleState) {
90    lastToggleState   = 1;
91  }
92  
93  // run blink pattern for each led for duration (blinkDur)
94   if (busyState) {
95    led1.blinkPattern();
96    led2.blinkPattern();
97  }
98
99}
100

#include "Led.h"
#include <DFPlayerMini_Fast.h>

// LED Pins
const   int LED_1_PIN = 3;
const int LED_1_PATTERN[patternSize] = {400, 400, 400, 400};
const   int LED_2_PIN = 6;
const int LED_2_PATTERN[patternSize] = {400, 400, 400, 400};

//   Led object init
Led led1(LED_1_PIN);
Led led2(LED_2_PIN);

// Create   the Player object
DFPlayerMini_Fast player;

// Pin for play button
const   int PLAY_BTN = 12;

// DFPlayer Control States
int fileCount;
bool toggleState   = 1;
bool lastToggleState = 1;
bool busyState = 0;
int lastTrack = 0; //   0 is no track played

void setup() {
  
  // Init USB serial port for   debugging
  Serial.begin(9600);
  
  // Init Serial1 for DFPlayer Mini
   Serial1.begin(9600);
  player.begin(Serial1, false, 500);

  delay(1000);
   
  // Set volume
  player.volume(26);
  delay(500);

  // Get number   of tracks
  fileCount = player.numSdTracks();
  delay(500);

  // Init   play button pin
  pinMode(PLAY_BTN, INPUT_PULLUP);
  
  // initialize leds,   turn them on, and load blink patterns
  led1.init();
  led1.on();
  led1.loadPattern(LED_1_PATTERN);
   
  led2.init();
  led2.on();
  led2.loadPattern(LED_2_PATTERN);
  
}

void   loop() {

  // get toggle state
  toggleState = digitalRead(PLAY_BTN);

   // get busy state
  busyState = player.isPlaying();

// Debug states
   Serial.print("Busy: ");
  Serial.print(busyState);
  Serial.print(" Last   Track: ");
  Serial.print(lastTrack);
  Serial.print(" Toggle: ");
   Serial.print(toggleState);
  Serial.print(" Last Toggle: ");
  Serial.print(lastToggleState);
   Serial.print(" File Count: ");
  Serial.println(fileCount);

  // if   button has been pressed and track is not playing, play the next track
  if (!toggleState   and lastToggleState) {
    lastToggleState = 0;
    if (lastTrack == fileCount)   {
      lastTrack = 0;
    }
    lastTrack++;
    player.playFromMP3Folder(lastTrack);
     delay(500);
  } else if (toggleState and !lastToggleState) {
    lastToggleState   = 1;
  }
  
  // run blink pattern for each led for duration (blinkDur)
   if (busyState) {
    led1.blinkPattern();
    led2.blinkPattern();
  }

}

Sea Turtle Mod - Code - Led.cpp

arduino

1#include "Led.h"
2
3Led::Led(byte pin) {
4  this->pin = pin;
5}
6
7void  Led::init() {
8  pinMode(pin, OUTPUT);
9  off();
10}
11
12void Led::off()  {
13  digitalWrite(pin, LOW);
14}
15void Led::on() {
16  digitalWrite(pin, HIGH);
17}
18
19void  Led::loadPattern(int arr[patternSize]) {
20  for (int i = 0; i < patternSize; i++)  {
21    pattern[i] = arr[i];
22  }
23}
24
25void Led::blinkPattern() {
26  unsigned long currentMillis = millis();
27  if (currentMillis - lastBlink >=  pattern[blinkStep]) {
28
29    // debugging output
30//    Serial.print("Last  Blink: ");
31//    Serial.print(lastBlink);
32//    Serial.print(" Blink Step:  ");
33//    Serial.print(blinkStep);
34//    Serial.print(" Blink Interval:  ");
35//    Serial.println(pattern[blinkStep]);
36
37    if (state == LOW) {
38      state = HIGH;
39      on();
40    } else {
41      state = LOW;
42      off();
43    }
44    lastBlink = currentMillis;
45    if (blinkStep == patternSize-1) {
46      blinkStep = 0; 
47    } else {
48      blinkStep++;
49    }
50  }
51}
52

#include "Led.h"

Led::Led(byte pin) {
  this->pin = pin;
}

void  Led::init() {
  pinMode(pin, OUTPUT);
  off();
}

void Led::off()  {
  digitalWrite(pin, LOW);
}
void Led::on() {
  digitalWrite(pin, HIGH);
}

void  Led::loadPattern(int arr[patternSize]) {
  for (int i = 0; i < patternSize; i++)  {
    pattern[i] = arr[i];
  }
}

void Led::blinkPattern() {
  unsigned long currentMillis = millis();
  if (currentMillis - lastBlink >=  pattern[blinkStep]) {

    // debugging output
//    Serial.print("Last  Blink: ");
//    Serial.print(lastBlink);
//    Serial.print(" Blink Step:  ");
//    Serial.print(blinkStep);
//    Serial.print(" Blink Interval:  ");
//    Serial.println(pattern[blinkStep]);

    if (state == LOW) {
      state = HIGH;
      on();
    } else {
      state = LOW;
      off();
    }
    lastBlink = currentMillis;
    if (blinkStep == patternSize-1) {
      blinkStep = 0; 
    } else {
      blinkStep++;
    }
  }
}

Sea Turtle Mod - Code - Led.h

arduino

1#ifndef MY_LED_H
2#define MY_LED_H
3
4#include <Arduino.h>
5
6const  int patternSize = 4;
7
8class Led {
9  private:
10    byte pin;
11    unsigned  long lastBlink = 0;
12    int blinkStep = 0;
13    bool state = HIGH;
14  public:
15    int pattern[patternSize];
16    Led(byte pin);
17    void init();
18    void  off();
19    void on();
20    void loadPattern(int arr[patternSize]);
21    void  blinkPattern();
22};
23
24#endif
25

#ifndef MY_LED_H
#define MY_LED_H

#include <Arduino.h>

const  int patternSize = 4;

class Led {
  private:
    byte pin;
    unsigned  long lastBlink = 0;
    int blinkStep = 0;
    bool state = HIGH;
  public:
    int pattern[patternSize];
    Led(byte pin);
    void init();
    void  off();
    void on();
    void loadPattern(int arr[patternSize]);
    void  blinkPattern();
};

#endif

Downloadable files

Sea Turtle Audio Mod - Schematic

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