Newbie question:

hi guys.  been lurking awhile now, started first build, , ran first problem.

i'm trying control stepper motor using 4 digital inputs (i intend track moving object w/ lasers).

i'm trying if , else if statements control logic.  i've played around w/ hundred ways, motor picks run command.  below latest upload.  i'm down trying 2 states only.  button inputs have no impact on stepper.  turns on , runs ccw is, , if re-comment in last array, cycles , fourth.  tips?

code: [select]


/////////testing motor run input interlocking/////////

//  built using elements arduino examples, custom code, , arduino workshop examples
//  [project 1] - stepper motor direction control using 4 digital inputs variable interlocking approvals.
//  button inputs replaced ldr's
//  mcmullen october 2015.

#include <stepper.h>

int button_1 = 2;
int button_2 = 3;
int button_3 = 4;
int button_4 = 5;

const int stepsperrevolution = 512;  // change fit number of steps per revolution (changed 200)
// motor

// initialize stepper library on pins 9 through 12:  changed wiring 9-12. 
stepper mystepper(stepsperrevolution, 9, 10, 11, 12);

void setup() {
  // set speed @ 2 rpm: (changed 60)
  mystepper.setspeed(20);
  // initialize serial port:
  serial.begin(9600);
   pinmode(button_1, input);
   pinmode(button_2, input);
   pinmode(button_3, input);
   pinmode(button_4, input);
}

void loop() {
  if ((button_1==high)&&(button_3==high)&&(button_2==low)&&(button_4==low))
    delay(10000);
  //input code restart loop without going further.  research indicates needing add "global flag" inreset possibly command.

 
  if ((button_1==low)&&(button_2==high)&&(button_3==high)&&(button_4==high));
  //input code turn motor ccw , restart loop
  // step 1 revolution ccw
    serial.println("counterclockwise");
    mystepper.step(-stepsperrevolution);
   
 
  //if ((button_3==low)&&(button_1==high)&&(button_2==high)&&(button_4==high));
  //input code turn motor cw , restart loop
    // step 1 revolution cw
   // serial.println("clockwise");
  //  mystepper.step(stepsperrevolution);
   
}


code: [select]

if ((button_1==high)&&(button_3==high)&

button_1 defined in code 2.  high defined in core 1.  2 shall never ever equal.  1 never equal 2. 

perhaps instead of comparing pin number state, meant read pin , compare state state.

code: [select]

if(digitalread(button_1) == high && digitalread(button_3) == high && ...


i suggest working through of basic examples until understand of basics of how stuff works before getting more complex. 

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