Banana Piano

1/*************************************************
2 * Public Constants
3  *************************************************/
4
5#define NOTE_B0  31
6#define  NOTE_C1  33
7#define NOTE_CS1 35
8#define NOTE_D1  37
9#define NOTE_DS1 39
10#define  NOTE_E1  41
11#define NOTE_F1  44
12#define NOTE_FS1 46
13#define NOTE_G1  49
14#define  NOTE_GS1 52
15#define NOTE_A1  55
16#define NOTE_AS1 58
17#define NOTE_B1  62
18#define  NOTE_C2  65
19#define NOTE_CS2 69
20#define NOTE_D2  73
21#define NOTE_DS2 78
22#define  NOTE_E2  82
23#define NOTE_F2  87
24#define NOTE_FS2 93
25#define NOTE_G2  98
26#define  NOTE_GS2 104
27#define NOTE_A2  110
28#define NOTE_AS2 117
29#define NOTE_B2  123
30#define NOTE_C3  131
31#define NOTE_CS3 139
32#define NOTE_D3  147
33#define  NOTE_DS3 156
34#define NOTE_E3  165
35#define NOTE_F3  175
36#define NOTE_FS3  185
37#define NOTE_G3  196
38#define NOTE_GS3 208
39#define NOTE_A3  220
40#define  NOTE_AS3 233
41#define NOTE_B3  247
42#define NOTE_C4  262
43#define NOTE_CS4  277
44#define NOTE_D4  294
45#define NOTE_DS4 311
46#define NOTE_E4  330
47#define  NOTE_F4  349
48#define NOTE_FS4 370
49#define NOTE_G4  392
50#define NOTE_GS4  415
51#define NOTE_A4  440
52#define NOTE_AS4 466
53#define NOTE_B4  494
54#define  NOTE_C5  523
55#define NOTE_CS5 554
56#define NOTE_D5  587
57#define NOTE_DS5  622
58#define NOTE_E5  659
59#define NOTE_F5  698
60#define NOTE_FS5 740
61#define  NOTE_G5  784
62#define NOTE_GS5 831
63#define NOTE_A5  880
64#define NOTE_AS5  932
65#define NOTE_B5  988
66#define NOTE_C6  1047
67#define NOTE_CS6 1109
68#define  NOTE_D6  1175
69#define NOTE_DS6 1245
70#define NOTE_E6  1319
71#define NOTE_F6  1397
72#define NOTE_FS6 1480
73#define NOTE_G6  1568
74#define NOTE_GS6 1661
75#define  NOTE_A6  1760
76#define NOTE_AS6 1865
77#define NOTE_B6  1976
78#define NOTE_C7  2093
79#define NOTE_CS7 2217
80#define NOTE_D7  2349
81#define NOTE_DS7 2489
82#define  NOTE_E7  2637
83#define NOTE_F7  2794
84#define NOTE_FS7 2960
85#define NOTE_G7  3136
86#define NOTE_GS7 3322
87#define NOTE_A7  3520
88#define NOTE_AS7 3729
89#define  NOTE_B7  3951
90#define NOTE_C8  4186
91#define NOTE_CS8 4435
92#define NOTE_D8  4699
93#define NOTE_DS8 4978
94
95
96

1/*************************************************
2 * Public Constants
3
4  *************************************************/
5
6#define NOTE_B0  31
7#define
8  NOTE_C1  33
9#define NOTE_CS1 35
10#define NOTE_D1  37
11#define NOTE_DS1 39
12#define
13  NOTE_E1  41
14#define NOTE_F1  44
15#define NOTE_FS1 46
16#define NOTE_G1  49
17#define
18  NOTE_GS1 52
19#define NOTE_A1  55
20#define NOTE_AS1 58
21#define NOTE_B1  62
22#define
23  NOTE_C2  65
24#define NOTE_CS2 69
25#define NOTE_D2  73
26#define NOTE_DS2 78
27#define
28  NOTE_E2  82
29#define NOTE_F2  87
30#define NOTE_FS2 93
31#define NOTE_G2  98
32#define
33  NOTE_GS2 104
34#define NOTE_A2  110
35#define NOTE_AS2 117
36#define NOTE_B2
37  123
38#define NOTE_C3  131
39#define NOTE_CS3 139
40#define NOTE_D3  147
41#define
42  NOTE_DS3 156
43#define NOTE_E3  165
44#define NOTE_F3  175
45#define NOTE_FS3
46  185
47#define NOTE_G3  196
48#define NOTE_GS3 208
49#define NOTE_A3  220
50#define
51  NOTE_AS3 233
52#define NOTE_B3  247
53#define NOTE_C4  262
54#define NOTE_CS4
55  277
56#define NOTE_D4  294
57#define NOTE_DS4 311
58#define NOTE_E4  330
59#define
60  NOTE_F4  349
61#define NOTE_FS4 370
62#define NOTE_G4  392
63#define NOTE_GS4
64  415
65#define NOTE_A4  440
66#define NOTE_AS4 466
67#define NOTE_B4  494
68#define
69  NOTE_C5  523
70#define NOTE_CS5 554
71#define NOTE_D5  587
72#define NOTE_DS5
73  622
74#define NOTE_E5  659
75#define NOTE_F5  698
76#define NOTE_FS5 740
77#define
78  NOTE_G5  784
79#define NOTE_GS5 831
80#define NOTE_A5  880
81#define NOTE_AS5
82  932
83#define NOTE_B5  988
84#define NOTE_C6  1047
85#define NOTE_CS6 1109
86#define
87  NOTE_D6  1175
88#define NOTE_DS6 1245
89#define NOTE_E6  1319
90#define NOTE_F6
91  1397
92#define NOTE_FS6 1480
93#define NOTE_G6  1568
94#define NOTE_GS6 1661
95#define
96  NOTE_A6  1760
97#define NOTE_AS6 1865
98#define NOTE_B6  1976
99#define NOTE_C7
100  2093
101#define NOTE_CS7 2217
102#define NOTE_D7  2349
103#define NOTE_DS7 2489
104#define
105  NOTE_E7  2637
106#define NOTE_F7  2794
107#define NOTE_FS7 2960
108#define NOTE_G7
109  3136
110#define NOTE_GS7 3322
111#define NOTE_A7  3520
112#define NOTE_AS7 3729
113#define
114  NOTE_B7  3951
115#define NOTE_C8  4186
116#define NOTE_CS8 4435
117#define NOTE_D8
118  4699
119#define NOTE_DS8 4978
120
121
122

1/*
2  Banana Piano
3  
4  This code implements a single octave of  a simple piano. It borrows from Tom Igoe's tone 
5  example ( http://arduino.cc/en/Tutorial/Tone  ) and uses his pitches.h include file for
6  the note frequencies. The digital  input pins and their corresponding notes are defined
7  in arrays. Serial monitor  output is provided to test key logic levels. 
8  
9  The digital inputs use  2.2 Meg Ohm pull-up resistors. The digital inputs are brought to
10  logic level  LOW by grounding the banana connected to each digital input. 
11
12  Circuit:
13  8 - 2.2 Meg Ohm pull-up resistors, connected to +5 V and each of the digital input  pins
14  1 - 220 Ohm resistor, connected from pin 12 to an 8 Ohm speaker
15  
16  R. Ballew, 31-Jan-2018                                                                                                                                         
17  
18*/
19#include "pitches.h"
20
21int numKeys = 8;
22int digInput[] = {  2, 3, 4, 5, 6, 7, 8, 9 };
23int myNote[] = { NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5 };
24int toneOut = 12;
25
26void setup() {
27  // Start serial connection
28  Serial.begin(9600);
29  // Configure digital  input pins
30  for (int i = 0; i < numKeys; i++) {
31    pinMode(digInput[i],  INPUT);
32  }
33  pinMode(toneOut, OUTPUT);
34}
35
36void loop() {
37  //
38  int keypressed = 0;
39  for (int j = 0; j < numKeys; j++) {
40    int sensorVal  = digitalRead(digInput[j]);
41    String outStr = String("K");
42      outStr  = String(outStr + j);
43      outStr = String(outStr + ": ");
44      outStr  = String(outStr + sensorVal);
45    if (sensorVal == LOW) {
46      ++keypressed;  // increment keypressed
47      digitalWrite(13, HIGH);
48      tone(toneOut,  myNote[j]);
49    }
50    //outStr = String(outStr + ":");
51    //outStr =  String(outStr + keypressed);
52    Serial.print(outStr);
53    Serial.print("\	");
54  }
55  Serial.println("");
56  if (keypressed == 0) {
57    noTone(toneOut);
58  }
59  delay(250);
60}
61