1//define pin name
2#define dir 1  // Direction
3#define pwrA 2 //   Power for Motor A
4#define pwrB 4 // Power for Motor B
5#define pwrC 7 // Power   for Motor C
6
7//constants won't change
8const int buttonPin = 8;     // the   number of the pushbutton pin
9
10// variables will change
11int buttonState   = 0;         // variable for reading the pushbutton status
12int pwrAState = LOW;
13int   pwrBState = LOW;
14int pwrcState = LOW;
15int delaymillsA = 400;
16int delaymillsAr   = 400;       // Return delay
17int delaymillsB = 400;
18int delaymillsBr = 400;        // Return delay
19int delaymillsC = 500;
20int delaymillsCr = 500;       //   Return delay
21int delaymillsD = 100;
22
23void setup() {
24  // initialize   the pwr and dir pins as outputs:
25  pinMode(pwrA,OUTPUT);
26  pinMode(pwrB,OUTPUT);
27   pinMode(pwrC,OUTPUT);
28  pinMode(dir,OUTPUT);
29
30  // initialize the pushbutton   pin as an input:
31  pinMode(buttonPin, INPUT);
32}
33void loop() {
34 // read   the state of the pushbutton value:
35  buttonState = digitalRead(buttonPin);
36
37//   check if the pushbutton is pressed. If it is, the buttonState is HIGH:
38  if (buttonState   == HIGH) {
39digitalWrite(pwrA,HIGH);
40digitalWrite(dir,HIGH);                                          //   set DIR pin HIGH or LOW
41delay(delaymillsA);
42digitalWrite(dir,LOW);                                          //   set DIR pin HIGH or LOW
43delay(delaymillsAr);
44digitalWrite(pwrA,LOW);
45delay(delaymillsD);
46digitalWrite(pwrB,HIGH);
47digitalWrite(dir,HIGH);                                           // set DIR pin HIGH or LOW
48delay(delaymillsB);
49digitalWrite(dir,LOW);                                           // set DIR pin HIGH or LOW
50delay(delaymillsBr);
51digitalWrite(pwrB,LOW);
52delay(delaymillsD);
53digitalWrite(pwrC,HIGH);
54digitalWrite(dir,HIGH);                                           // set DIR pin HIGH or LOW
55delay(delaymillsC);
56digitalWrite(dir,LOW);                                           // set DIR pin HIGH or LOW
57delay(delaymillsCr);
58digitalWrite(pwrC,LOW);
59delay(delaymillsD);
60   } else {
61    // turn LED off:
62    digitalWrite(pwrA, LOW);
63    digitalWrite(pwrB,   LOW);
64    digitalWrite(pwrC, LOW);
65  }
66}

1//define pin name
2#define dir 1  // Direction
3#define pwrA 2 //
4  Power for Motor A
5#define pwrB 4 // Power for Motor B
6#define pwrC 7 // Power
7  for Motor C
8
9//constants won't change
10const int buttonPin = 8;     // the
11  number of the pushbutton pin
12
13// variables will change
14int buttonState
15  = 0;         // variable for reading the pushbutton status
16int pwrAState = LOW;
17int
18  pwrBState = LOW;
19int pwrcState = LOW;
20int delaymillsA = 400;
21int delaymillsAr
22  = 400;       // Return delay
23int delaymillsB = 400;
24int delaymillsBr = 400;
25       // Return delay
26int delaymillsC = 500;
27int delaymillsCr = 500;       //
28  Return delay
29int delaymillsD = 100;
30
31void setup() {
32  // initialize
33  the pwr and dir pins as outputs:
34  pinMode(pwrA,OUTPUT);
35  pinMode(pwrB,OUTPUT);
36
37  pinMode(pwrC,OUTPUT);
38  pinMode(dir,OUTPUT);
39
40  // initialize the pushbutton
41  pin as an input:
42  pinMode(buttonPin, INPUT);
43}
44void loop() {
45 // read
46  the state of the pushbutton value:
47  buttonState = digitalRead(buttonPin);
48
49//
50  check if the pushbutton is pressed. If it is, the buttonState is HIGH:
51  if (buttonState
52  == HIGH) {
53digitalWrite(pwrA,HIGH);
54digitalWrite(dir,HIGH);                                          //
55  set DIR pin HIGH or LOW
56delay(delaymillsA);
57digitalWrite(dir,LOW);                                          //
58  set DIR pin HIGH or LOW
59delay(delaymillsAr);
60digitalWrite(pwrA,LOW);
61delay(delaymillsD);
62digitalWrite(pwrB,HIGH);
63digitalWrite(dir,HIGH);
64                                          // set DIR pin HIGH or LOW
65delay(delaymillsB);
66digitalWrite(dir,LOW);
67                                          // set DIR pin HIGH or LOW
68delay(delaymillsBr);
69digitalWrite(pwrB,LOW);
70delay(delaymillsD);
71digitalWrite(pwrC,HIGH);
72digitalWrite(dir,HIGH);
73                                          // set DIR pin HIGH or LOW
74delay(delaymillsC);
75digitalWrite(dir,LOW);
76                                          // set DIR pin HIGH or LOW
77delay(delaymillsCr);
78digitalWrite(pwrC,LOW);
79delay(delaymillsD);
80
81  } else {
82    // turn LED off:
83    digitalWrite(pwrA, LOW);
84    digitalWrite(pwrB,
85  LOW);
86    digitalWrite(pwrC, LOW);
87  }
88}