Arduino MP3 Nodding Toy

1#include "DFPlayer.h"
2#include <Servo.h>
3
4// DFPlayer 
5#define  DFPserial_RX 5  // DFP RX pin 2 connect to Arduino TX pin 5
6#define DFPserial_TX  4  // DFP TX pin 3 connect to Arduino RX pin 4
7#define BUSYPIN 2
8#define VOLUME_INITIAL  20
9// Servo 
10#define SERVO_PIN 6
11#define SERVO_INITIAL 70
12#define SERVO_NODD  55
13
14//Piezoelectric
15#define PIEZO_PIN A0
16#define THRESHOLD 70
17
18Servo  servo1;
19DFPlayer mp3;
20bool playing = false;
21
22void setup() {
23  Serial.begin(115200);
24  
25  servo1.attach(SERVO_PIN);
26  
27  // Set initial position of servo
28  servo1.write(SERVO_INITIAL);
29
30
31  // Start MP3 module
32  mp3.begin();  
33  mp3.getPlayerStatus();
34  mp3.setVolume(VOLUME_INITIAL);
35}
36
37void  loop() {
38
39  //Read piezoelectric
40  int val= analogRead(PIEZO_PIN);
41  delay(100);
42
43  // Check that the piezo is pressed
44  if (val >= THRESHOLD)
45  {
46    // If it's not playing and piezo is pressed, then start the song.
47    if(!playing)
48    {
49        mp3.playMP3Folder(1);       // Play track 1  in the mp3 folder
50    } 
51    else               
52    {
53       // If  it's playing and piezo is pressed, then stop the song.
54        mp3.stopAll();
55        
56        // Set servo to initial position
57        servo1.write(SERVO_INITIAL);
58    }
59  }
60
61  // Use hardward to detect if playing using the DFPlayer Busy  pin connected to pin 2 on the Arduino 
62  if (mp3.playing(BUSYPIN)) { 
63
64    //Start nodding
65    nodd();
66    
67    if (!playing) {
68      playing  = true;
69    }
70    
71  } 
72  else 
73  {
74    if (playing) 
75    {
76      playing = false;
77    }
78  }
79  delay(10);
80}
81
82void nodd()
83{
84    servo1.write(SERVO_NODD);
85    delay(300);
86    servo1.write(SERVO_INITIAL);
87}
88

1#include "DFPlayer.h"
2#include <Servo.h>
3
4// DFPlayer 
5#define
6  DFPserial_RX 5  // DFP RX pin 2 connect to Arduino TX pin 5
7#define DFPserial_TX
8  4  // DFP TX pin 3 connect to Arduino RX pin 4
9#define BUSYPIN 2
10#define VOLUME_INITIAL
11  20
12// Servo 
13#define SERVO_PIN 6
14#define SERVO_INITIAL 70
15#define SERVO_NODD
16  55
17
18//Piezoelectric
19#define PIEZO_PIN A0
20#define THRESHOLD 70
21
22Servo
23  servo1;
24DFPlayer mp3;
25bool playing = false;
26
27void setup() {
28  Serial.begin(115200);
29
30  
31  servo1.attach(SERVO_PIN);
32  
33  // Set initial position of servo
34
35  servo1.write(SERVO_INITIAL);
36
37
38  // Start MP3 module
39  mp3.begin();
40  
41  mp3.getPlayerStatus();
42  mp3.setVolume(VOLUME_INITIAL);
43}
44
45void
46  loop() {
47
48  //Read piezoelectric
49  int val= analogRead(PIEZO_PIN);
50
51  delay(100);
52
53  // Check that the piezo is pressed
54  if (val >= THRESHOLD)
55
56  {
57    // If it's not playing and piezo is pressed, then start the song.
58
59    if(!playing)
60    {
61        mp3.playMP3Folder(1);       // Play track 1
62  in the mp3 folder
63    } 
64    else               
65    {
66       // If
67  it's playing and piezo is pressed, then stop the song.
68        mp3.stopAll();
69
70        
71        // Set servo to initial position
72        servo1.write(SERVO_INITIAL);
73
74    }
75  }
76
77  // Use hardward to detect if playing using the DFPlayer Busy
78  pin connected to pin 2 on the Arduino 
79  if (mp3.playing(BUSYPIN)) { 
80
81
82    //Start nodding
83    nodd();
84    
85    if (!playing) {
86      playing
87  = true;
88    }
89    
90  } 
91  else 
92  {
93    if (playing) 
94    {
95
96      playing = false;
97    }
98  }
99  delay(10);
100}
101
102void nodd()
103{
104
105    servo1.write(SERVO_NODD);
106    delay(300);
107    servo1.write(SERVO_INITIAL);
108}
109