DIY Small Linear Stage

1/*
2DIY small stage test
3 
4   * Press the button(PBS1) connected  to Arduino pin8 to run a stage foward.
5   * Press the button(PBS2) connected  to Arduino pin9 to run a stage reverse.
6   
7*/
8
9#define PBS1 8
10#define  PBS2 9
11#define MOTOR1 2
12#define MOTOR2 3
13int s1=0,s2=0;
14
15void setup()  {
16  pinMode(PBS1, INPUT);
17  pinMode(PBS2, INPUT);
18  pinMode(MOTOR1 , OUTPUT);
19  pinMode(MOTOR2, OUTPUT);
20}
21
22void loop() {
23   s1=digitalRead(PBS1);
24   if(s1==0) {						// While button is pressed...
25    digitalWrite(MOTOR1,  LOW);		//Motor direction:CW
26    digitalWrite(MOTOR2, HIGH);		//Motor direction:CW
27    delay(50);                     	//Debounce
28   }
29   else {						
30    digitalWrite(MOTOR1, LOW);		//stop
31    digitalWrite(MOTOR2, LOW);		//stop
32    delay(50);                     	//Debounce
33   } 
34   s2=digitalRead(PBS2);
35   if(s2==0)	{					// While button is pressed...
36    digitalWrite(MOTOR1,  HIGH);		//Motor direction:CCW
37    digitalWrite(MOTOR2, LOW);		//Motor direction:CCW
38    delay(50);                     	//Debounce
39   }
40   else	 {
41    digitalWrite(MOTOR1,  LOW);		//stop
42    digitalWrite(MOTOR2, LOW);		//stop
43    delay(50);                     	//Debounce
44   }
45   }