Using Arduino BT for bike odometer

hi, having problem whilst trying create interface between arduino , pc, have loaded following code onto arduino

int led_pin = 13;
int interrupt_pin_a = 0; // digital pin #2
int interrupt_pin_b = 1; // digital pin #3

int signal_pin_a    = 2; // digital pin #2
int signal_pin_b    = 3; // digital pin #3

volatile int state_a = 0;
volatile int state_b = 0;
volatile unsigned long last_seen_millis = 0;
volatile int pause_counter    = 0;
volatile int continue_counter = 0;

void setup(){
  nointerrupts();
  pinmode(led_pin,    output);
  pinmode(signal_pin_a, input );
  pinmode(signal_pin_b, input );

  digitalwrite(led_pin, low);
  serial.begin(9600);

  state_a = 0;
  state_b = 0;

  attachinterrupt(interrupt_pin_a, detect_a, rising);
  attachinterrupt(interrupt_pin_b, detect_b, rising);
  interrupts();

}

void detect_a() {
  nointerrupts();

  state_a++;

  interrupts();
}

void detect_b() {
  nointerrupts();

  state_b++;

  interrupts();
}

void loop(){
  if(state_a > 0 && state_b > 0) {
    // saw falling signal. indicates
    // magnet sensor has gone past,
    // , can issue message on serial
    // port.
    nointerrupts();
    state_a = 0;
    state_b = 0;

    // indicate signal led
    digitalwrite(led_pin, high);
    serial.println( millis() );
    digitalwrite(led_pin, low);
    interrupts();

    last_seen_millis = millis();
    // wait @ least 100 milliseconds
    // before trying detect next interrupt
    while( millis() < ( last_seen_millis + 100 ) ) {
      state_a = 0;
      state_b = 0;
    }
  }

  // don't see interrupt state_a, but
  // should check if we've left sensor
  // in pause mode
  while( digitalread(signal_pin_a) ) {

    digitalwrite(led_pin, high);

    last_seen_millis = millis();
    // wait @ least 100 milliseconds
    // before trying see if we're
    // paused
    while( millis() < ( last_seen_millis + 100 ) ) {
      // noop
    }

    // we've waited 100 milliseconds , we're still
    // reading positive signal
    pause_counter++;

    // if we've seen behavior 5 seconds,
    // pause exercise.
    if(pause_counter > 50) {
      serial.println( "pause" );
      last_seen_millis = millis();
      while( millis() < ( last_seen_millis + 10000 ) ) {
        // noop
      }
    }
  }
  pause_counter = 0;
  digitalwrite(led_pin, low);

  // don't see interrupt state_b, but
  // should check if we've left sensor
  // in continue mode
  while( digitalread(signal_pin_b) ) {

    digitalwrite(led_pin, high);

    last_seen_millis = millis();
    // wait @ least 100 milliseconds
    // before trying see if we're
    // paused
    while( millis() < ( last_seen_millis + 100 ) ) {
      // noop
    }

    // we've waited 100 milliseconds , we're still
    // reading positive signal
    continue_counter++;

    // if we've seen behavior 5 seconds,
    // pause exercise.
    if(continue_counter > 50) {
      serial.println( "continue" );
      last_seen_millis = millis();
      while( millis() < ( last_seen_millis + 10000 ) ) {
        // noop
      }
    }
  }
  continue_counter = 0;

  digitalwrite(led_pin, low);

}

this code persons project attempting achieve similar result using arduino uno board. complete beginner this, have never done microcontroller programming before , have little circuit design experience. board seems sensing magnet passing read switches, when using serial monitor came arduino software nothing seems coming on screen, have downloaded separate more powerful serial port monitor eltima , have had no luck that.

please tell advise me how rectify attach pictures of circuit give insight. green power led flashes off when pass magnet reed switches correct don't know  :~ [img][/https://www.facebook.com/photo.php?fbid=10152939111220646&set=a.10151367977080646.820068.655585645&type=1&theater]
[img][/https://www.facebook.com/photo.php?fbid=10152939091700646&set=a.10151367977080646.820068.655585645&type=1&theater]
[img][/https://www.facebook.com/photo.php?fbid=10152939091260646&set=a.10151367977080646.820068.655585645&type=1&theater]
[img][/https://www.facebook.com/photo.php?fbid=10152939090840646&set=a.10151367977080646.820068.655585645&type=1&theater]

quote from: bsimmonds on jun 22, 2013, 03:19 pm

please tell advise me how rectify attach pictures of circuit give insight.

you missed placing [ /img ] @ ends of pic links.

quote from: bsimmonds on jun 22, 2013, 03:19 pm

also green power led flashes off when pass magnet reed switches correct don't know

not good.
(what's tummy telling you?)

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