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1527line follower

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  • akash deep
    Feb 4, 2009
    • 0 Attachment
      heylo every1
      i was trying to make a line follower robot...
      but problemssssss...

      i have connected the inputs to portc and output to portb.
       and made the following code

      #include<avr/io.h>

      int main()
      {
      DDRC=0x00; //Input port c declared
      DDRB=0xff; //port B declared output
      DDRD=0xff;

      PORTC=0xff; //active pull resistors

      PORTD=255;

      while(1)
      {

      if(PORTC==0xeb)
      PORTB=0x5c;//go strt

      if (PORTC==0xef)
      PORTB=0x48;//go left

      if (PORTC==0xfb)
      PORTB=0x14;//go right

      }
      }

      althought portd=255 lights up the leds on portd...
      nothing else happens to portb when i change the inputs on portc..

      have connected inputs to pc5 and pc3

      outputs to pb1 and pb3..

      thanks in advance


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