Working with 7-Segment Display

1const int A = 2;
2const int B = 3;
3const int C = 4;
4const int  D = 5;
5const int E = 6;
6const int F = 7;
7const int G = 8;
8const int  DP = 9;
9
10void setup()
11{
12  pinMode (A, OUTPUT);
13  pinMode (B, OUTPUT);
14  pinMode (C, OUTPUT);
15  pinMode (D, OUTPUT);
16  pinMode (E, OUTPUT);
17  pinMode  (F, OUTPUT);
18  pinMode (G, OUTPUT);
19  pinMode (DP, OUTPUT);
20}
21
22void  loop()
23{
24  zero();
25  delay (1000);
26  one();
27  delay (1000);
28  two();
29  delay (1000);
30  three();
31  delay (1000);
32  four();
33  delay (1000);
34  five();
35  delay (1000);
36  six();
37  delay (1000);
38  seven();
39  delay  (1000);
40  eight();
41  delay (1000);
42  nine();
43  delay (1000);
44}
45
46void  zero()
47{
48  digitalWrite (A, LOW);
49  digitalWrite (B, LOW);
50  digitalWrite  (C, LOW);
51  digitalWrite (D, LOW);
52  digitalWrite (E, LOW);
53  digitalWrite  (F, LOW);
54  digitalWrite (G, HIGH);
55  digitalWrite (DP, HIGH);
56}
57
58void  one()
59{
60  digitalWrite (A, HIGH);
61  digitalWrite (B, LOW);
62  digitalWrite  (C, LOW);
63  digitalWrite (D, HIGH);
64  digitalWrite (E, HIGH);
65  digitalWrite  (F, HIGH);
66  digitalWrite (G, HIGH);
67  digitalWrite (DP, HIGH);
68}
69
70void  two()
71{
72  digitalWrite (A, LOW);
73  digitalWrite (B, LOW);
74  digitalWrite  (C, HIGH);
75  digitalWrite (D, LOW);
76  digitalWrite (E, LOW);
77  digitalWrite  (F, HIGH);
78  digitalWrite (G, LOW);
79  digitalWrite (DP, HIGH);
80}
81
82void  three()
83{
84  digitalWrite (A, LOW);
85  digitalWrite (B, LOW);
86  digitalWrite  (C, LOW);
87  digitalWrite (D, LOW);
88  digitalWrite (E, HIGH);
89  digitalWrite  (F, HIGH);
90  digitalWrite (G, LOW);
91  digitalWrite (DP, HIGH);
92}
93
94void  four()
95{
96  digitalWrite (A, HIGH);
97  digitalWrite (B, LOW);
98  digitalWrite  (C, LOW);
99  digitalWrite (D, HIGH);
100  digitalWrite (E, HIGH);
101  digitalWrite  (F, LOW);
102  digitalWrite (G, LOW);
103  digitalWrite (DP, HIGH);
104}
105
106void  five()
107{
108  digitalWrite (A, LOW);
109  digitalWrite (B, HIGH);
110  digitalWrite  (C, LOW);
111  digitalWrite (D, LOW);
112  digitalWrite (E, HIGH);
113  digitalWrite  (F, LOW);
114  digitalWrite (G, LOW);
115  digitalWrite (DP, HIGH);
116}
117
118void  six()
119{
120  digitalWrite (A, LOW);
121  digitalWrite (B, HIGH);
122  digitalWrite  (C, LOW);
123  digitalWrite (D, LOW);
124  digitalWrite (E, LOW);
125  digitalWrite  (F, LOW);
126  digitalWrite (G, LOW);
127  digitalWrite (DP, HIGH);
128}
129
130void  seven()
131{
132  digitalWrite (A, LOW);
133  digitalWrite (B, LOW);
134  digitalWrite  (C, LOW);
135  digitalWrite (D, HIGH);
136  digitalWrite (E, HIGH);
137  digitalWrite  (F, HIGH);
138  digitalWrite (G, HIGH);
139  digitalWrite (DP, HIGH);
140}
141
142void  eight()
143{
144  digitalWrite (A, LOW);
145  digitalWrite (B, LOW);
146  digitalWrite  (C, LOW);
147  digitalWrite (D, LOW);
148  digitalWrite (E, LOW);
149  digitalWrite  (F, LOW);
150  digitalWrite (G, LOW);
151  digitalWrite (DP, HIGH);
152}
153
154void  nine()
155{
156  digitalWrite (A, LOW);
157  digitalWrite (B, LOW);
158  digitalWrite  (C, LOW);
159  digitalWrite (D, LOW);
160  digitalWrite (E, HIGH);
161  digitalWrite  (F, LOW);
162  digitalWrite (G, LOW);
163  digitalWrite (DP, HIGH);
164}