code

[dagakshay]

code algo:

 

 

while(1)

{

 if(key= = 1)

 {

  led=ON;

   while(PA0= =1);

   _delay_10s( );

  led=OFF;

  }

  else

   key=off;

}

 

 

this the code algo for the above ckt….

 

there can be more simple circuits by using 555 for that….