Binary D2-20 LED Display

Basic five LED display that can show common die from D&D using two buttons, one as a randomiser, and one as a menu/roll state activator.

Nov 15, 2018

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Components and supplies

5 mm LED: Green

Arduino UNO

Pushbutton switch 12mm

5 mm LED: Yellow

Resistor 330 ohm

Project description

Code

D20_Sketch

c_cpp

Base code for the project, upload to Arduino Uno

1int bin1 = 13; //pins 13 - 9 used for lights 1 - 16
2int bin2 = 12;
3int  bin4 = 11;
4int bin8 = 10;
5int bin16 = 9;
6int menustate = 0; // 0 menustate  will be standard d20
7int heightlimit = 21; // 21 heightlimit means roll cannot  exceed 20 (exclusive maximum)
8int rollvalue = 0; // begin at 0 so lights do not  initialise on, allows a baseline to start from
9int rollbutton = 3; // pins 2  and 3 used for detecting menu or roll press
10int menubutton = 2;
11int rollon  = LOW; // on states are HIGH if digitalRead of menu/roll are high, allows if to  function
12int menuon = LOW;
13int menuhasdisplayed = 0; // decaying variable  ensures menu value is not constantly displayed and does not interrupt
14void setup()  {
15pinMode(bin1, OUTPUT);
16pinMode(bin2, OUTPUT);
17pinMode(bin4, OUTPUT);
18pinMode(bin8,  OUTPUT);
19pinMode(bin16, OUTPUT);
20pinMode(rollbutton, INPUT);
21pinMode(menubutton,  INPUT);
22Serial.begin(9600);
23}
24
25void loop() {
26  Serial.println(menustate);
27rollon  = digitalRead(rollbutton);
28menuon = digitalRead(menubutton);
29
30if(rollon  == HIGH){
31  rollvalue = random(1, heightlimit);
32  delay(5);
33}
34if(menuon  == HIGH){
35  menustate++;
36  menuhasdisplayed = 0;
37  delay(750);
38}
39if(menustate  == 6){
40  menustate = 0;
41}
42if(menustate == 0 && menuhasdisplayed == 0){
43  heightlimit = 21;
44  digitalWrite(bin1, LOW);
45  digitalWrite(bin2, LOW);
46  digitalWrite(bin4, HIGH);
47  digitalWrite(bin8, LOW);
48  digitalWrite(bin16,  HIGH);
49  delay(750);
50  menuhasdisplayed = 1;
51}
52if(menustate == 1 &&  menuhasdisplayed == 0){
53  heightlimit = 3;
54  digitalWrite(bin1, LOW);
55  digitalWrite(bin2, HIGH);
56  digitalWrite(bin4, LOW);
57  digitalWrite(bin8,  LOW);
58  digitalWrite(bin16, LOW);
59  delay(750);
60  menuhasdisplayed = 1;
61}
62if(menustate  == 2 && menuhasdisplayed == 0){
63  heightlimit = 5;
64  digitalWrite(bin1, LOW);
65  digitalWrite(bin2, LOW);
66  digitalWrite(bin4, HIGH);
67  digitalWrite(bin8,  LOW);
68  digitalWrite(bin16, LOW);
69  delay(750);
70  menuhasdisplayed = 1;
71}
72if(menustate  == 3 && menuhasdisplayed == 0){
73  heightlimit = 9;
74  digitalWrite(bin1, LOW);
75  digitalWrite(bin2, LOW);
76  digitalWrite(bin4, LOW);
77  digitalWrite(bin8,  HIGH);
78  digitalWrite(bin16, LOW);
79  delay(750);
80  menuhasdisplayed = 1;
81}
82if(menustate  == 4 && menuhasdisplayed == 0){
83  heightlimit = 11;
84  digitalWrite(bin1, LOW);
85  digitalWrite(bin2, HIGH);
86  digitalWrite(bin4, LOW);
87  digitalWrite(bin8,  HIGH);
88  digitalWrite(bin16, LOW);
89  delay(750);
90  menuhasdisplayed = 1;
91}
92if(menustate  == 5 && menuhasdisplayed == 0){
93  heightlimit = 13;
94  digitalWrite(bin1, LOW);
95  digitalWrite(bin2, LOW);
96  digitalWrite(bin4, HIGH);
97  digitalWrite(bin8,  HIGH);
98  digitalWrite(bin16, LOW);
99  delay(750);
100  menuhasdisplayed = 1;
101}
102
103//  ledblock begin
104  
105if(rollvalue == 0) {
106  digitalWrite(bin1, LOW);
107  digitalWrite(bin2,  LOW);
108  digitalWrite(bin4, LOW);
109  digitalWrite(bin8, LOW);
110  digitalWrite(bin16,  LOW);
111}
112if(rollvalue == 1) {
113  digitalWrite(bin1, HIGH);
114  digitalWrite(bin2,  LOW);
115  digitalWrite(bin4, LOW);
116  digitalWrite(bin8, LOW);
117  digitalWrite(bin16,  LOW);
118}
119if(rollvalue == 2) {
120  digitalWrite(bin1, LOW);
121  digitalWrite(bin2,  HIGH);
122  digitalWrite(bin4, LOW);
123  digitalWrite(bin8, LOW);
124  digitalWrite(bin16,  LOW);
125}
126if(rollvalue == 3) {
127  digitalWrite(bin1, HIGH);
128  digitalWrite(bin2,  HIGH);
129  digitalWrite(bin4, LOW);
130  digitalWrite(bin8, LOW);
131  digitalWrite(bin16,  LOW);
132}
133if(rollvalue == 4) {
134  digitalWrite(bin1, LOW);
135  digitalWrite(bin2,  LOW);
136  digitalWrite(bin4, HIGH);
137  digitalWrite(bin8, LOW);
138  digitalWrite(bin16,  LOW);
139}
140if(rollvalue == 5) {
141  digitalWrite(bin1, HIGH);
142  digitalWrite(bin2,  LOW);
143  digitalWrite(bin4, HIGH);
144  digitalWrite(bin8, LOW);
145  digitalWrite(bin16,  LOW);
146}
147if(rollvalue == 6) {
148  digitalWrite(bin1, LOW);
149  digitalWrite(bin2,  HIGH);
150  digitalWrite(bin4, HIGH);
151  digitalWrite(bin8, LOW);
152  digitalWrite(bin16,  LOW);
153}
154if(rollvalue == 7) {
155  digitalWrite(bin1, HIGH);
156  digitalWrite(bin2,  HIGH);
157  digitalWrite(bin4, HIGH);
158  digitalWrite(bin8, LOW);
159  digitalWrite(bin16,  LOW);
160}
161if(rollvalue == 8) {
162  digitalWrite(bin1, LOW);
163  digitalWrite(bin2,  LOW);
164  digitalWrite(bin4, LOW);
165  digitalWrite(bin8, HIGH);
166  digitalWrite(bin16,  LOW);
167}
168if(rollvalue == 9) {
169  digitalWrite(bin1, HIGH);
170  digitalWrite(bin2,  LOW);
171  digitalWrite(bin4, LOW);
172  digitalWrite(bin8, HIGH);
173  digitalWrite(bin16,  LOW);
174}
175if(rollvalue == 10) {
176  digitalWrite(bin1, LOW);
177  digitalWrite(bin2,  HIGH);
178  digitalWrite(bin4, LOW);
179  digitalWrite(bin8, HIGH);
180  digitalWrite(bin16,  LOW);
181}
182if(rollvalue == 11) {
183  digitalWrite(bin1, HIGH);
184  digitalWrite(bin2,  HIGH);
185  digitalWrite(bin4, LOW);
186  digitalWrite(bin8, HIGH);
187  digitalWrite(bin16,  LOW);
188}
189if(rollvalue == 12) {
190  digitalWrite(bin1, LOW);
191  digitalWrite(bin2,  LOW);
192  digitalWrite(bin4, HIGH);
193  digitalWrite(bin8, HIGH);
194  digitalWrite(bin16,  LOW);
195}
196if(rollvalue == 13) {
197  digitalWrite(bin1, HIGH);
198  digitalWrite(bin2,  LOW);
199  digitalWrite(bin4, HIGH);
200  digitalWrite(bin8, HIGH);
201  digitalWrite(bin16,  LOW);
202}
203if(rollvalue == 14) {
204  digitalWrite(bin1, LOW);
205  digitalWrite(bin2,  HIGH);
206  digitalWrite(bin4, HIGH);
207  digitalWrite(bin8, HIGH);
208  digitalWrite(bin16,  LOW);
209}
210if(rollvalue == 15) {
211  digitalWrite(bin1, HIGH);
212  digitalWrite(bin2,  HIGH);
213  digitalWrite(bin4, HIGH);
214  digitalWrite(bin8, HIGH);
215  digitalWrite(bin16,  LOW);
216}
217if(rollvalue == 16) {
218  digitalWrite(bin1, LOW);
219  digitalWrite(bin2,  LOW);
220  digitalWrite(bin4, LOW);
221  digitalWrite(bin8, LOW);
222  digitalWrite(bin16,  HIGH);
223}
224if(rollvalue == 17) {
225  digitalWrite(bin1, HIGH);
226  digitalWrite(bin2,  LOW);
227  digitalWrite(bin4, LOW);
228  digitalWrite(bin8, LOW);
229  digitalWrite(bin16,  HIGH);
230}
231if(rollvalue == 18) {
232  digitalWrite(bin1, LOW);
233  digitalWrite(bin2,  HIGH);
234  digitalWrite(bin4, LOW);
235  digitalWrite(bin8, LOW);
236  digitalWrite(bin16,  HIGH);
237}
238if(rollvalue == 19) {
239  digitalWrite(bin1, HIGH);
240  digitalWrite(bin2,  HIGH);
241  digitalWrite(bin4, LOW);
242  digitalWrite(bin8, LOW);
243  digitalWrite(bin16,  HIGH);
244}
245if(rollvalue == 20) {
246  digitalWrite(bin1, LOW);
247  digitalWrite(bin2,  LOW);
248  digitalWrite(bin4, HIGH);
249  digitalWrite(bin8, LOW);
250  digitalWrite(bin16,  HIGH);
251}
252delay(5);
253}
254

int bin1 = 13; //pins 13 - 9 used for lights 1 - 16
int bin2 = 12;
int  bin4 = 11;
int bin8 = 10;
int bin16 = 9;
int menustate = 0; // 0 menustate  will be standard d20
int heightlimit = 21; // 21 heightlimit means roll cannot  exceed 20 (exclusive maximum)
int rollvalue = 0; // begin at 0 so lights do not  initialise on, allows a baseline to start from
int rollbutton = 3; // pins 2  and 3 used for detecting menu or roll press
int menubutton = 2;
int rollon  = LOW; // on states are HIGH if digitalRead of menu/roll are high, allows if to  function
int menuon = LOW;
int menuhasdisplayed = 0; // decaying variable  ensures menu value is not constantly displayed and does not interrupt
void setup()  {
pinMode(bin1, OUTPUT);
pinMode(bin2, OUTPUT);
pinMode(bin4, OUTPUT);
pinMode(bin8,  OUTPUT);
pinMode(bin16, OUTPUT);
pinMode(rollbutton, INPUT);
pinMode(menubutton,  INPUT);
Serial.begin(9600);
}

void loop() {
  Serial.println(menustate);
rollon  = digitalRead(rollbutton);
menuon = digitalRead(menubutton);

if(rollon  == HIGH){
  rollvalue = random(1, heightlimit);
  delay(5);
}
if(menuon  == HIGH){
  menustate++;
  menuhasdisplayed = 0;
  delay(750);
}
if(menustate  == 6){
  menustate = 0;
}
if(menustate == 0 && menuhasdisplayed == 0){
  heightlimit = 21;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
  delay(750);
  menuhasdisplayed = 1;
}
if(menustate == 1 &&  menuhasdisplayed == 0){
  heightlimit = 3;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8,  LOW);
  digitalWrite(bin16, LOW);
  delay(750);
  menuhasdisplayed = 1;
}
if(menustate  == 2 && menuhasdisplayed == 0){
  heightlimit = 5;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8,  LOW);
  digitalWrite(bin16, LOW);
  delay(750);
  menuhasdisplayed = 1;
}
if(menustate  == 3 && menuhasdisplayed == 0){
  heightlimit = 9;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8,  HIGH);
  digitalWrite(bin16, LOW);
  delay(750);
  menuhasdisplayed = 1;
}
if(menustate  == 4 && menuhasdisplayed == 0){
  heightlimit = 11;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8,  HIGH);
  digitalWrite(bin16, LOW);
  delay(750);
  menuhasdisplayed = 1;
}
if(menustate  == 5 && menuhasdisplayed == 0){
  heightlimit = 13;
  digitalWrite(bin1, LOW);
  digitalWrite(bin2, LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8,  HIGH);
  digitalWrite(bin16, LOW);
  delay(750);
  menuhasdisplayed = 1;
}

//  ledblock begin
  
if(rollvalue == 0) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 1) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 2) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 3) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 4) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 5) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 6) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 7) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 8) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 9) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 10) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 11) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 12) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 13) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 14) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 15) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, HIGH);
  digitalWrite(bin16,  LOW);
}
if(rollvalue == 16) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
}
if(rollvalue == 17) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
}
if(rollvalue == 18) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
}
if(rollvalue == 19) {
  digitalWrite(bin1, HIGH);
  digitalWrite(bin2,  HIGH);
  digitalWrite(bin4, LOW);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
}
if(rollvalue == 20) {
  digitalWrite(bin1, LOW);
  digitalWrite(bin2,  LOW);
  digitalWrite(bin4, HIGH);
  digitalWrite(bin8, LOW);
  digitalWrite(bin16,  HIGH);
}
delay(5);
}

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