Simple LED Dice with "random" function

1//delay time variable
2#define d 200
3//led pins:
4int led1=3; 
5int  led2=4;
6int led3=5;
7int led4=6;
8int led5=7;
9int led6=8;
10//button  pin:
11int button=2;
12//variable of the result:
13int result;
14void setup()  {
15  //leds as OUTPUT
16  pinMode(led1, OUTPUT);
17  pinMode(led2, OUTPUT);
18  pinMode(led3, OUTPUT);
19  pinMode(led4, OUTPUT);
20  pinMode(led5, OUTPUT);
21  pinMode(led6, OUTPUT);
22  //button as INPUT_PULLUP (sends LOW when pressed)
23  pinMode(button, INPUT_PULLUP);
24  
25}
26
27void loop() {
28  if(digitalRead(button)==LOW){  //if button pressed:
29    result=random(7); //result will generate a random number  between 0 and 6
30    //random function just select a random number
31  }
32  switch(result){
33        case 0: //case result = 0
34        //leds turn off
35         digitalWrite(led6, LOW);
36         digitalWrite(led5, LOW);
37         digitalWrite(led4,  LOW);
38         digitalWrite(led3, LOW);
39         digitalWrite(led2, LOW);
40         digitalWrite(led1, LOW); 
41         delay(d);       //wait 200 milliseconds
42          break;
43        case 1: //case result = 1
44        //one led turn  on
45         digitalWrite(led6, HIGH);
46         digitalWrite(led5, LOW);
47         digitalWrite(led4, LOW);
48         digitalWrite(led3, LOW);
49         digitalWrite(led2,  LOW);
50         digitalWrite(led1, LOW); 
51         delay(d);         //wait  200 milliseconds       
52          break;
53        //two leds turn on
54        case  2: //case result = 2  
55          digitalWrite(led6, HIGH);
56          digitalWrite(led5,  HIGH);        
57          digitalWrite(led4, LOW);
58          digitalWrite(led3,  LOW);
59          digitalWrite(led2, LOW);
60          digitalWrite(led1, LOW);   
61          delay(d);      //wait 200 milliseconds
62          break;
63        //three leds turn on
64        case 3:  //case result = 3
65          digitalWrite(led6,  HIGH);
66          digitalWrite(led5, HIGH);      
67          digitalWrite(led4,  HIGH);
68          digitalWrite(led3, LOW);
69          digitalWrite(led2, LOW);
70          digitalWrite(led1, LOW);   
71          delay(d);     //wait 200 milliseconds   
72          break;
73          //four leds turn on
74        case 4:  //case  result = 4
75          digitalWrite(led6, HIGH);   
76          digitalWrite(led5,  HIGH);      
77          digitalWrite(led4, HIGH);
78          digitalWrite(led3,  HIGH);
79          digitalWrite(led2, LOW);
80          digitalWrite(led1, LOW);    
81          delay(d);    //wait 200 milliseconds
82          break;
83          //five  leds turn on
84        case 5: //case result = 5
85          digitalWrite(led6,  HIGH); 
86          digitalWrite(led5, HIGH);      
87          digitalWrite(led4,  HIGH);
88          digitalWrite(led3, HIGH);
89          digitalWrite(led2, HIGH);
90          digitalWrite(led1, LOW);   
91          delay(d);   //wait 200 milliseconds   
92          break;
93          //six leds turn on
94        case 6: //case  result = 6
95          digitalWrite(led6, HIGH);
96          digitalWrite(led5,  HIGH);      
97          digitalWrite(led4, HIGH);
98          digitalWrite(led3,  HIGH);
99          digitalWrite(led2, HIGH);
100          digitalWrite(led1, HIGH);
101          delay(d);       //wait 200 milliseconds 
102          break;         
103  }
104}

1//delay time variable
2#define d 200
3//led pins:
4int led1=3; 
5int
6  led2=4;
7int led3=5;
8int led4=6;
9int led5=7;
10int led6=8;
11//button
12  pin:
13int button=2;
14//variable of the result:
15int result;
16void setup()
17  {
18  //leds as OUTPUT
19  pinMode(led1, OUTPUT);
20  pinMode(led2, OUTPUT);
21
22  pinMode(led3, OUTPUT);
23  pinMode(led4, OUTPUT);
24  pinMode(led5, OUTPUT);
25
26  pinMode(led6, OUTPUT);
27  //button as INPUT_PULLUP (sends LOW when pressed)
28
29  pinMode(button, INPUT_PULLUP);
30  
31}
32
33void loop() {
34  if(digitalRead(button)==LOW){
35  //if button pressed:
36    result=random(7); //result will generate a random number
37  between 0 and 6
38    //random function just select a random number
39  }
40
41  switch(result){
42        case 0: //case result = 0
43        //leds turn off
44
45         digitalWrite(led6, LOW);
46         digitalWrite(led5, LOW);
47         digitalWrite(led4,
48  LOW);
49         digitalWrite(led3, LOW);
50         digitalWrite(led2, LOW);
51
52         digitalWrite(led1, LOW); 
53         delay(d);       //wait 200 milliseconds
54
55          break;
56        case 1: //case result = 1
57        //one led turn
58  on
59         digitalWrite(led6, HIGH);
60         digitalWrite(led5, LOW);
61
62         digitalWrite(led4, LOW);
63         digitalWrite(led3, LOW);
64         digitalWrite(led2,
65  LOW);
66         digitalWrite(led1, LOW); 
67         delay(d);         //wait
68  200 milliseconds       
69          break;
70        //two leds turn on
71        case
72  2: //case result = 2  
73          digitalWrite(led6, HIGH);
74          digitalWrite(led5,
75  HIGH);        
76          digitalWrite(led4, LOW);
77          digitalWrite(led3,
78  LOW);
79          digitalWrite(led2, LOW);
80          digitalWrite(led1, LOW);
81   
82          delay(d);      //wait 200 milliseconds
83          break;
84
85        //three leds turn on
86        case 3:  //case result = 3
87          digitalWrite(led6,
88  HIGH);
89          digitalWrite(led5, HIGH);      
90          digitalWrite(led4,
91  HIGH);
92          digitalWrite(led3, LOW);
93          digitalWrite(led2, LOW);
94
95          digitalWrite(led1, LOW);   
96          delay(d);     //wait 200 milliseconds
97   
98          break;
99          //four leds turn on
100        case 4:  //case
101  result = 4
102          digitalWrite(led6, HIGH);   
103          digitalWrite(led5,
104  HIGH);      
105          digitalWrite(led4, HIGH);
106          digitalWrite(led3,
107  HIGH);
108          digitalWrite(led2, LOW);
109          digitalWrite(led1, LOW);
110    
111          delay(d);    //wait 200 milliseconds
112          break;
113          //five
114  leds turn on
115        case 5: //case result = 5
116          digitalWrite(led6,
117  HIGH); 
118          digitalWrite(led5, HIGH);      
119          digitalWrite(led4,
120  HIGH);
121          digitalWrite(led3, HIGH);
122          digitalWrite(led2, HIGH);
123
124          digitalWrite(led1, LOW);   
125          delay(d);   //wait 200 milliseconds
126   
127          break;
128          //six leds turn on
129        case 6: //case
130  result = 6
131          digitalWrite(led6, HIGH);
132          digitalWrite(led5,
133  HIGH);      
134          digitalWrite(led4, HIGH);
135          digitalWrite(led3,
136  HIGH);
137          digitalWrite(led2, HIGH);
138          digitalWrite(led1, HIGH);
139
140          delay(d);       //wait 200 milliseconds 
141          break;         
142
143  }
144}