Maximize Inputs

1/*
2  Created by:
3
4  Amos Parmenter
5  July 20th 2019
6
7
8  The code is setup with the idea that you can
9  fit more buttons onto the Arduino
10  that inputs allow.
11  The code uses the idea of assigning vector
12  identity
13  to a node that will be unique when compared to other nodes.
14
15  This version
16  is setup as 2x2x2 cube and can fit 8 buttons
17  into 6 analog slots. It is scalable
18  in cubed
19  form (3x3x3.(mega), 4x4x4.(mega) , 5x5x5.(mega maxed inputs)).
20
21  The 5x5x5 uses 15 analog pins but in return gives you 125 buttons.
22
23  There
24  are mathematical complications to this code that
25  I haven’t fully worked out.To
26  be sure you don’t get false
27  positives for buttons you can only turn on one
28  button at a time.
29  In most cases you can have two buttons on at once but not
30
31  every two combinations are allowed.
32  Any three combinations will always give
33  you false positives.
34  The simulations I wired in 123D Circuits with the 2x2x2
35
36  cubed wiring and is running this version of code.
37
38*/
39
40
41const int
42  x0 = 0; // input pins
43const int x1 = 1; // input pins
44const int y0 = 2; //
45  input pins
46const int y1 = 3; // input pins
47const int z0 = 4; // input pins
48const
49  int z1 = 5; // input pins
50
51int x_0; // nodes
52int x_1; // nodes
53int y_0;
54  // nodes
55int y_1; // nodes
56int z_0; // nodes
57int z_1; // nodes
58
59bool
60  btn0 = false;
61bool btn1 = false;
62bool btn2 = false;
63bool btn3 = false;
64bool
65  btn4 = false;
66bool btn5 = false;
67bool btn6 = false;
68bool btn7 = false;
69
70bool
71  vectorX = false;
72bool vectorY = false;
73bool vectorZ = false;
74
75bool btnBoolMatrix[]
76  = {btn0, btn1, btn2, btn3,
77                        btn4, btn5, btn6, btn7
78
79                       };
80
81int analogList[8][3] = {
82  {x0, y0, z0},
83
84  {x1, y0, z0},
85  {x0, y1, z0},
86  {x1, y1, z0},
87  //============
88  {x0,
89  y0, z1},
90  {x1, y0, z1},
91  {x0, y1, z1},
92  {x1, y1, z1}
93};
94
95int
96  btnMatrix[8][3] = {
97  {x_0, y_0, z_0},
98  {x_1, y_0, z_0},
99  {x_0, y_1,
100  z_0},
101  {x_1, y_1, z_0},
102  //============
103  {x_0, y_0, z_1},
104  {x_1,
105  y_0, z_1},
106  {x_0, y_1, z_1},
107  {x_1, y_1, z_1}
108};
109
110bool vectorXYZ
111  [3] {vectorX, vectorY, vectorZ};
112
113
114void setup()
115{
116  Serial.begin(9600);
117
118
119  pinMode(x0, INPUT);
120  pinMode(x1, INPUT);
121  pinMode(y0, INPUT);
122  pinMode(y1,
123  INPUT);
124  pinMode(z0, INPUT);
125  pinMode(z1, INPUT);
126
127}
128
129void loop()
130  {
131
132  /* This section allows you to check
133     the active button by entering
134  the number
135     1 into the Serail monitor
136  */
137
138  while (Serial.available()
139  < 0);
140  int options = Serial.read() - '0';
141  if (options == 1) {
142
143    checkBtnList();
144
145  }
146
147}
148
149
150
151
152
153void checkBtnList() {
154
155  for (int i =
156  0; i < 8; i++) {
157
158    for (int i = 0; i < 3; i++) {
159      vectorXYZ[i]
160  = false;
161    }
162
163    for (int j = 0; j < 3; j++) {
164
165      btnMatrix[i][j]
166  = analogRead(analogList[i][j]);
167
168
169
170      if (btnMatrix[i][j] > 250 )
171  {
172        vectorXYZ[j] = true;
173      } else {
174        vectorXYZ[j] = false;
175
176      }
177
178      if (j == 2) {
179        if (vectorXYZ[0] == true && vectorXYZ[1]
180  == true && vectorXYZ[2] == true) {
181          btnBoolMatrix[i] = true;
182        }
183  else {
184          btnBoolMatrix[i] = false;
185        }
186      }
187
188    }
189
190  }
191
192  for (int s = 0; s < 7; s++) {
193    Serial.print(btnBoolMatrix[s]);
194
195    Serial.print(" ");
196  }
197  Serial.println(btnBoolMatrix[7]);
198  
199}
200
201
202
203