Pedometer With Aruino

pedometer.pde

//IO output for LCD display
int _A=1;
int _B=2;
int _C=3;
int _D=4;
int _E=5;
int _F=6;
int _G=7;
int _DP=8;
/*

                 _B   
▕▔▏         _C   _A
▕▔▏   ====》  _D
  ▔▫          _E   _G
                 _F _DP
*/

int NUM_SEG [ 16 ][ 7 ] = {
{ 1,1,1,0,1,1,1 },
{ 1,0,0,0,0,0,1 },
{ 1,1,0,1,1,1,0 },
{ 1,1,0,1,0,1,1 },
{ 1,0,1,1,0,0,1 },
{ 0,1,1,1,0,1,1 },
{ 0,1,1,1,1,1,1 },
{ 1,1,0,0,0,0,1 },
{ 1,1,1,1,1,1,1 },
{ 1,1,1,1,0,1,1 },
{ 1,1,1,1,1,0,1 },
{ 0,0,1,1,1,1,1 },
{ 0,1,1,0,1,1,0 },
{ 1,0,0,1,1,1,1 },
{ 0,1,1,1,1,1,0 },
{ 0,1,1,1,1,0,0 }
};



void lit( int segment )
{
  digitalWrite (segment,LOW);
}

void quench ( int segment )
{
  digitalWrite ( segment,HIGH );
}

void set_segment ( int segment , int sta )
{
  if ( sta == 1 )
  {
    lit ( segment );
  }
  else
  {
    quench ( segment );
  }
}

// display number :num ; if dp == 1 , display point . lasting milisecond :time.
void NumDisplay ( int num , int dp , int time)
{
  time = time / 2;
  for ( int t = 0 ; t < time ; t++ )
  {
      for ( int i = 0 ; i < 7 ; i++ )
      {
        set_segment ( i+1 , NUM_SEG [ num % 16 ][ i ] );
        set_segment ( _DP , dp );
      }
      
      delay ( 1 );
  }

}


void setup()
{
  int i;
  for(i=1;i<=8;i++)
    pinMode(i,OUTPUT);//set 4-11 as output mode
}

void loop()
{  
  int num = 0;
  int i = 0;
  int old = 0;
  int flag = 0;
  while(1)
  {
    NumDisplay ( num , 0 , 500 );
    old = i;
    i=analogRead(5) / 100;
    if ( i != old )
    {
      num ++;
    }
  /*  
    i=analogRead(5);/
    if(i>200)
    {
      if( flag == 0 )
      {
        num++;//turn on led
        flag = 1;      
      }
    }
    else
    {
      flag = 0;
    }
    */
  }
}