Building a LED Binary Counter

1int pin2 = 2; // Setting the value of variable pin2 as 2
2int pin3 =   3; // Setting the value of variable pin3 as 3
3int pin4 = 4; // Setting the value   of variable pin4 as 4
4int pin5 = 5; // Setting the value of variable pin5 as   5
5
6void setup() {
7  // put your setup code here, to run once:
8pinMode   (pin2,OUTPUT); //Defining pin2 as OUTPUT
9pinMode (pin3,OUTPUT); //Defining pin3   as OUTPUT
10pinMode (pin4,OUTPUT); //Defining pin4 as OUTPUT
11pinMode (pin5,OUTPUT);   //Defining pin5 as OUTPUT
12}
13
14void loop() {
15  // put your main code here,   to run repeatedly:
16// 0000 = 0
17// 0001 (1)
18digitalWrite (pin2,LOW);
19digitalWrite   (pin3,LOW);
20digitalWrite (pin4,LOW);
21digitalWrite (pin5,HIGH);
22
23delay   (1000); // giving a gap of 1000 miilliseconds, 1 second =  1000 milliseconds
24
25digitalWrite   (pin2,LOW);
26digitalWrite (pin3,LOW);
27digitalWrite (pin4,LOW);
28digitalWrite   (pin5,LOW);
29
30delay (1000);
31
32
33// 0010 (2)
34digitalWrite (pin2,LOW);
35digitalWrite   (pin3,LOW);
36digitalWrite (pin4,HIGH);
37digitalWrite (pin5,LOW);
38
39delay   (1000);
40
41digitalWrite (pin2,LOW);
42digitalWrite (pin3,LOW);
43digitalWrite   (pin4,LOW);
44digitalWrite (pin5,LOW);
45
46delay (1000);
47
48// 0011 (3)
49digitalWrite   (pin2,LOW);
50digitalWrite (pin3,LOW);
51digitalWrite (pin4,HIGH);
52digitalWrite   (pin5,HIGH);
53
54delay (1000);
55
56digitalWrite (pin2,LOW);
57digitalWrite   (pin3,LOW);
58digitalWrite (pin4,LOW);
59digitalWrite (pin5,LOW);
60
61delay   (1000);
62
63// 0100 (4)
64digitalWrite (pin2,LOW);
65digitalWrite (pin3,HIGH);
66digitalWrite   (pin4,LOW);
67digitalWrite (pin5,LOW);
68
69delay (1000);
70
71digitalWrite   (pin2,LOW);
72digitalWrite (pin3,LOW);
73digitalWrite (pin4,LOW);
74digitalWrite   (pin5,LOW);
75
76delay (1000);
77
78// 0101 (5)
79digitalWrite (pin2,LOW);
80digitalWrite   (pin3,HIGH);
81digitalWrite (pin4,LOW);
82digitalWrite (pin5,HIGH);
83
84delay   (1000);
85
86digitalWrite (pin2,LOW);
87digitalWrite (pin3,LOW);
88digitalWrite   (pin4,LOW);
89digitalWrite (pin5,LOW);
90
91delay (1000);
92
93// 0110 (6)
94digitalWrite   (pin2,LOW);
95digitalWrite (pin3,HIGH);
96digitalWrite (pin4,HIGH);
97digitalWrite   (pin5,LOW);
98
99delay (1000);
100
101digitalWrite (pin2,LOW);
102digitalWrite   (pin3,LOW);
103digitalWrite (pin4,LOW);
104digitalWrite (pin5,LOW);
105
106delay   (1000);
107
108// 0111 (7)
109digitalWrite (pin2,LOW);
110digitalWrite (pin3,HIGH);
111digitalWrite   (pin4,HIGH);
112digitalWrite (pin5,HIGH);
113
114delay (1000);
115
116digitalWrite   (pin2,LOW);
117digitalWrite (pin3,LOW);
118digitalWrite (pin4,LOW);
119digitalWrite   (pin5,LOW);
120
121delay (1000);
122
123// 1000 (8)
124digitalWrite (pin2,HIGH);
125digitalWrite   (pin3,LOW);
126digitalWrite (pin4,LOW);
127digitalWrite (pin5,LOW);
128
129delay   (1000);
130
131digitalWrite (pin2,LOW);
132digitalWrite (pin3,LOW);
133digitalWrite   (pin4,LOW);
134digitalWrite (pin5,LOW);
135
136delay (1000);
137
138// 1001 (9)
139digitalWrite   (pin2,HIGH);
140digitalWrite (pin3,LOW);
141digitalWrite (pin4,LOW);
142digitalWrite   (pin5,HIGH);
143
144delay (1000);
145
146digitalWrite (pin2,LOW);
147digitalWrite   (pin3,LOW);
148digitalWrite (pin4,LOW);
149digitalWrite (pin5,LOW);
150
151delay   (1000);
152
153// 1010 (10)
154digitalWrite (pin2,HIGH);
155digitalWrite (pin3,LOW);
156digitalWrite   (pin4,HIGH);
157digitalWrite (pin5,LOW);
158
159delay (1000);
160
161digitalWrite   (pin2,LOW);
162digitalWrite (pin3,LOW);
163digitalWrite (pin4,LOW);
164digitalWrite   (pin5,LOW);
165
166delay (1000);
167
168// 1011 (11)
169digitalWrite (pin2,HIGH);
170digitalWrite   (pin3,LOW);
171digitalWrite (pin4,HIGH);
172digitalWrite (pin5,HIGH);
173
174delay   (1000);
175
176digitalWrite (pin2,LOW);
177digitalWrite (pin3,LOW);
178digitalWrite   (pin4,LOW);
179digitalWrite (pin5,LOW);
180
181delay (1000);
182
183
184// 1100   (12)
185digitalWrite (pin2,HIGH);
186digitalWrite (pin3,HIGH);
187digitalWrite (pin4,LOW);
188digitalWrite   (pin5,LOW);
189
190delay (1000);
191
192digitalWrite (pin2,LOW);
193digitalWrite   (pin3,LOW);
194digitalWrite (pin4,LOW);
195digitalWrite (pin5,LOW);
196
197delay   (1000);
198
199// 1101 (13)
200digitalWrite (pin2,HIGH);
201digitalWrite (pin3,HIGH);
202digitalWrite   (pin4,LOW);
203digitalWrite (pin5,HIGH);
204
205delay (1000);
206
207digitalWrite   (pin2,LOW);
208digitalWrite (pin3,LOW);
209digitalWrite (pin4,LOW);
210digitalWrite   (pin5,LOW);
211
212delay (1000);
213
214// 1110 (14)
215digitalWrite (pin2,HIGH);
216digitalWrite   (pin3,HIGH);
217digitalWrite (pin4,HIGH);
218digitalWrite (pin5,LOW);
219
220delay   (1000);
221
222digitalWrite (pin2,LOW);
223digitalWrite (pin3,LOW);
224digitalWrite   (pin4,LOW);
225digitalWrite (pin5,LOW);
226
227delay (1000);
228
229// 1111 (15)
230digitalWrite   (pin2,HIGH);
231digitalWrite (pin3,HIGH);
232digitalWrite (pin4,HIGH);
233digitalWrite   (pin5,HIGH);
234
235delay(1000);
236
237digitalWrite (pin2,LOW);
238digitalWrite   (pin3,LOW);
239digitalWrite (pin4,LOW);
240digitalWrite (pin5,LOW);
241
242delay   (2000);
243}
244

1int pin2 = 2; // Setting the value of variable pin2 as 2
2int pin3 =
3  3; // Setting the value of variable pin3 as 3
4int pin4 = 4; // Setting the value
5  of variable pin4 as 4
6int pin5 = 5; // Setting the value of variable pin5 as
7  5
8
9void setup() {
10  // put your setup code here, to run once:
11pinMode
12  (pin2,OUTPUT); //Defining pin2 as OUTPUT
13pinMode (pin3,OUTPUT); //Defining pin3
14  as OUTPUT
15pinMode (pin4,OUTPUT); //Defining pin4 as OUTPUT
16pinMode (pin5,OUTPUT);
17  //Defining pin5 as OUTPUT
18}
19
20void loop() {
21  // put your main code here,
22  to run repeatedly:
23// 0000 = 0
24// 0001 (1)
25digitalWrite (pin2,LOW);
26digitalWrite
27  (pin3,LOW);
28digitalWrite (pin4,LOW);
29digitalWrite (pin5,HIGH);
30
31delay
32  (1000); // giving a gap of 1000 miilliseconds, 1 second =  1000 milliseconds
33
34digitalWrite
35  (pin2,LOW);
36digitalWrite (pin3,LOW);
37digitalWrite (pin4,LOW);
38digitalWrite
39  (pin5,LOW);
40
41delay (1000);
42
43
44// 0010 (2)
45digitalWrite (pin2,LOW);
46digitalWrite
47  (pin3,LOW);
48digitalWrite (pin4,HIGH);
49digitalWrite (pin5,LOW);
50
51delay
52  (1000);
53
54digitalWrite (pin2,LOW);
55digitalWrite (pin3,LOW);
56digitalWrite
57  (pin4,LOW);
58digitalWrite (pin5,LOW);
59
60delay (1000);
61
62// 0011 (3)
63digitalWrite
64  (pin2,LOW);
65digitalWrite (pin3,LOW);
66digitalWrite (pin4,HIGH);
67digitalWrite
68  (pin5,HIGH);
69
70delay (1000);
71
72digitalWrite (pin2,LOW);
73digitalWrite
74  (pin3,LOW);
75digitalWrite (pin4,LOW);
76digitalWrite (pin5,LOW);
77
78delay
79  (1000);
80
81// 0100 (4)
82digitalWrite (pin2,LOW);
83digitalWrite (pin3,HIGH);
84digitalWrite
85  (pin4,LOW);
86digitalWrite (pin5,LOW);
87
88delay (1000);
89
90digitalWrite
91  (pin2,LOW);
92digitalWrite (pin3,LOW);
93digitalWrite (pin4,LOW);
94digitalWrite
95  (pin5,LOW);
96
97delay (1000);
98
99// 0101 (5)
100digitalWrite (pin2,LOW);
101digitalWrite
102  (pin3,HIGH);
103digitalWrite (pin4,LOW);
104digitalWrite (pin5,HIGH);
105
106delay
107  (1000);
108
109digitalWrite (pin2,LOW);
110digitalWrite (pin3,LOW);
111digitalWrite
112  (pin4,LOW);
113digitalWrite (pin5,LOW);
114
115delay (1000);
116
117// 0110 (6)
118digitalWrite
119  (pin2,LOW);
120digitalWrite (pin3,HIGH);
121digitalWrite (pin4,HIGH);
122digitalWrite
123  (pin5,LOW);
124
125delay (1000);
126
127digitalWrite (pin2,LOW);
128digitalWrite
129  (pin3,LOW);
130digitalWrite (pin4,LOW);
131digitalWrite (pin5,LOW);
132
133delay
134  (1000);
135
136// 0111 (7)
137digitalWrite (pin2,LOW);
138digitalWrite (pin3,HIGH);
139digitalWrite
140  (pin4,HIGH);
141digitalWrite (pin5,HIGH);
142
143delay (1000);
144
145digitalWrite
146  (pin2,LOW);
147digitalWrite (pin3,LOW);
148digitalWrite (pin4,LOW);
149digitalWrite
150  (pin5,LOW);
151
152delay (1000);
153
154// 1000 (8)
155digitalWrite (pin2,HIGH);
156digitalWrite
157  (pin3,LOW);
158digitalWrite (pin4,LOW);
159digitalWrite (pin5,LOW);
160
161delay
162  (1000);
163
164digitalWrite (pin2,LOW);
165digitalWrite (pin3,LOW);
166digitalWrite
167  (pin4,LOW);
168digitalWrite (pin5,LOW);
169
170delay (1000);
171
172// 1001 (9)
173digitalWrite
174  (pin2,HIGH);
175digitalWrite (pin3,LOW);
176digitalWrite (pin4,LOW);
177digitalWrite
178  (pin5,HIGH);
179
180delay (1000);
181
182digitalWrite (pin2,LOW);
183digitalWrite
184  (pin3,LOW);
185digitalWrite (pin4,LOW);
186digitalWrite (pin5,LOW);
187
188delay
189  (1000);
190
191// 1010 (10)
192digitalWrite (pin2,HIGH);
193digitalWrite (pin3,LOW);
194digitalWrite
195  (pin4,HIGH);
196digitalWrite (pin5,LOW);
197
198delay (1000);
199
200digitalWrite
201  (pin2,LOW);
202digitalWrite (pin3,LOW);
203digitalWrite (pin4,LOW);
204digitalWrite
205  (pin5,LOW);
206
207delay (1000);
208
209// 1011 (11)
210digitalWrite (pin2,HIGH);
211digitalWrite
212  (pin3,LOW);
213digitalWrite (pin4,HIGH);
214digitalWrite (pin5,HIGH);
215
216delay
217  (1000);
218
219digitalWrite (pin2,LOW);
220digitalWrite (pin3,LOW);
221digitalWrite
222  (pin4,LOW);
223digitalWrite (pin5,LOW);
224
225delay (1000);
226
227
228// 1100
229  (12)
230digitalWrite (pin2,HIGH);
231digitalWrite (pin3,HIGH);
232digitalWrite (pin4,LOW);
233digitalWrite
234  (pin5,LOW);
235
236delay (1000);
237
238digitalWrite (pin2,LOW);
239digitalWrite
240  (pin3,LOW);
241digitalWrite (pin4,LOW);
242digitalWrite (pin5,LOW);
243
244delay
245  (1000);
246
247// 1101 (13)
248digitalWrite (pin2,HIGH);
249digitalWrite (pin3,HIGH);
250digitalWrite
251  (pin4,LOW);
252digitalWrite (pin5,HIGH);
253
254delay (1000);
255
256digitalWrite
257  (pin2,LOW);
258digitalWrite (pin3,LOW);
259digitalWrite (pin4,LOW);
260digitalWrite
261  (pin5,LOW);
262
263delay (1000);
264
265// 1110 (14)
266digitalWrite (pin2,HIGH);
267digitalWrite
268  (pin3,HIGH);
269digitalWrite (pin4,HIGH);
270digitalWrite (pin5,LOW);
271
272delay
273  (1000);
274
275digitalWrite (pin2,LOW);
276digitalWrite (pin3,LOW);
277digitalWrite
278  (pin4,LOW);
279digitalWrite (pin5,LOW);
280
281delay (1000);
282
283// 1111 (15)
284digitalWrite
285  (pin2,HIGH);
286digitalWrite (pin3,HIGH);
287digitalWrite (pin4,HIGH);
288digitalWrite
289  (pin5,HIGH);
290
291delay(1000);
292
293digitalWrite (pin2,LOW);
294digitalWrite
295  (pin3,LOW);
296digitalWrite (pin4,LOW);
297digitalWrite (pin5,LOW);
298
299delay
300  (2000);
301}
302

1int pin2 = 2; // Setting the value of variable pin2 as 2
2int pin3 =  3; // Setting the value of variable pin3 as 3
3int pin4 = 4; // Setting the value  of variable pin4 as 4
4int pin5 = 5; // Setting the value of variable pin5 as  5
5
6void setup() {
7  // put your setup code here, to run once:
8pinMode  (pin2,OUTPUT); //Defining pin2 as OUTPUT
9pinMode (pin3,OUTPUT); //Defining pin3  as OUTPUT
10pinMode (pin4,OUTPUT); //Defining pin4 as OUTPUT
11pinMode (pin5,OUTPUT);  //Defining pin5 as OUTPUT
12}
13
14void loop() {
15  // put your main code here,  to run repeatedly:
16// 0000 = 0
17// 0001 (1)
18digitalWrite (pin2,LOW);
19digitalWrite  (pin3,LOW);
20digitalWrite (pin4,LOW);
21digitalWrite (pin5,HIGH);
22
23delay  (1000); // giving a gap of 1000 miilliseconds, 1 second =  1000 milliseconds
24
25digitalWrite  (pin2,LOW);
26digitalWrite (pin3,LOW);
27digitalWrite (pin4,LOW);
28digitalWrite  (pin5,LOW);
29
30delay (1000);
31
32
33// 0010 (2)
34digitalWrite (pin2,LOW);
35digitalWrite  (pin3,LOW);
36digitalWrite (pin4,HIGH);
37digitalWrite (pin5,LOW);
38
39delay  (1000);
40
41digitalWrite (pin2,LOW);
42digitalWrite (pin3,LOW);
43digitalWrite  (pin4,LOW);
44digitalWrite (pin5,LOW);
45
46delay (1000);
47
48// 0011 (3)
49digitalWrite  (pin2,LOW);
50digitalWrite (pin3,LOW);
51digitalWrite (pin4,HIGH);
52digitalWrite  (pin5,HIGH);
53
54delay (1000);
55
56digitalWrite (pin2,LOW);
57digitalWrite  (pin3,LOW);
58digitalWrite (pin4,LOW);
59digitalWrite (pin5,LOW);
60
61delay  (1000);
62
63// 0100 (4)
64digitalWrite (pin2,LOW);
65digitalWrite (pin3,HIGH);
66digitalWrite  (pin4,LOW);
67digitalWrite (pin5,LOW);
68
69delay (1000);
70
71digitalWrite  (pin2,LOW);
72digitalWrite (pin3,LOW);
73digitalWrite (pin4,LOW);
74digitalWrite  (pin5,LOW);
75
76delay (1000);
77
78// 0101 (5)
79digitalWrite (pin2,LOW);
80digitalWrite  (pin3,HIGH);
81digitalWrite (pin4,LOW);
82digitalWrite (pin5,HIGH);
83
84delay  (1000);
85
86digitalWrite (pin2,LOW);
87digitalWrite (pin3,LOW);
88digitalWrite  (pin4,LOW);
89digitalWrite (pin5,LOW);
90
91delay (1000);
92
93// 0110 (6)
94digitalWrite  (pin2,LOW);
95digitalWrite (pin3,HIGH);
96digitalWrite (pin4,HIGH);
97digitalWrite  (pin5,LOW);
98
99delay (1000);
100
101digitalWrite (pin2,LOW);
102digitalWrite  (pin3,LOW);
103digitalWrite (pin4,LOW);
104digitalWrite (pin5,LOW);
105
106delay  (1000);
107
108// 0111 (7)
109digitalWrite (pin2,LOW);
110digitalWrite (pin3,HIGH);
111digitalWrite  (pin4,HIGH);
112digitalWrite (pin5,HIGH);
113
114delay (1000);
115
116digitalWrite  (pin2,LOW);
117digitalWrite (pin3,LOW);
118digitalWrite (pin4,LOW);
119digitalWrite  (pin5,LOW);
120
121delay (1000);
122
123// 1000 (8)
124digitalWrite (pin2,HIGH);
125digitalWrite  (pin3,LOW);
126digitalWrite (pin4,LOW);
127digitalWrite (pin5,LOW);
128
129delay  (1000);
130
131digitalWrite (pin2,LOW);
132digitalWrite (pin3,LOW);
133digitalWrite  (pin4,LOW);
134digitalWrite (pin5,LOW);
135
136delay (1000);
137
138// 1001 (9)
139digitalWrite  (pin2,HIGH);
140digitalWrite (pin3,LOW);
141digitalWrite (pin4,LOW);
142digitalWrite  (pin5,HIGH);
143
144delay (1000);
145
146digitalWrite (pin2,LOW);
147digitalWrite  (pin3,LOW);
148digitalWrite (pin4,LOW);
149digitalWrite (pin5,LOW);
150
151delay  (1000);
152
153// 1010 (10)
154digitalWrite (pin2,HIGH);
155digitalWrite (pin3,LOW);
156digitalWrite  (pin4,HIGH);
157digitalWrite (pin5,LOW);
158
159delay (1000);
160
161digitalWrite  (pin2,LOW);
162digitalWrite (pin3,LOW);
163digitalWrite (pin4,LOW);
164digitalWrite  (pin5,LOW);
165
166delay (1000);
167
168// 1011 (11)
169digitalWrite (pin2,HIGH);
170digitalWrite  (pin3,LOW);
171digitalWrite (pin4,HIGH);
172digitalWrite (pin5,HIGH);
173
174delay  (1000);
175
176digitalWrite (pin2,LOW);
177digitalWrite (pin3,LOW);
178digitalWrite  (pin4,LOW);
179digitalWrite (pin5,LOW);
180
181delay (1000);
182
183
184// 1100  (12)
185digitalWrite (pin2,HIGH);
186digitalWrite (pin3,HIGH);
187digitalWrite (pin4,LOW);
188digitalWrite  (pin5,LOW);
189
190delay (1000);
191
192digitalWrite (pin2,LOW);
193digitalWrite  (pin3,LOW);
194digitalWrite (pin4,LOW);
195digitalWrite (pin5,LOW);
196
197delay  (1000);
198
199// 1101 (13)
200digitalWrite (pin2,HIGH);
201digitalWrite (pin3,HIGH);
202digitalWrite  (pin4,LOW);
203digitalWrite (pin5,HIGH);
204
205delay (1000);
206
207digitalWrite  (pin2,LOW);
208digitalWrite (pin3,LOW);
209digitalWrite (pin4,LOW);
210digitalWrite  (pin5,LOW);
211
212delay (1000);
213
214// 1110 (14)
215digitalWrite (pin2,HIGH);
216digitalWrite  (pin3,HIGH);
217digitalWrite (pin4,HIGH);
218digitalWrite (pin5,LOW);
219
220delay  (1000);
221
222digitalWrite (pin2,LOW);
223digitalWrite (pin3,LOW);
224digitalWrite  (pin4,LOW);
225digitalWrite (pin5,LOW);
226
227delay (1000);
228
229// 1111 (15)
230digitalWrite  (pin2,HIGH);
231digitalWrite (pin3,HIGH);
232digitalWrite (pin4,HIGH);
233digitalWrite  (pin5,HIGH);
234
235delay(1000);
236
237digitalWrite (pin2,LOW);
238digitalWrite  (pin3,LOW);
239digitalWrite (pin4,LOW);
240digitalWrite (pin5,LOW);
241
242delay  (2000);
243}
244