main.c

   1 #include <stdio.h>
   2 #include <wiringPi.h>
   3
   4 int main (void)
   5 {
   6   printf ("Short pin 7 and 9 to see something cool.\n") ;
   7
   8   wiringPiSetup ();
   9
  10   pinMode(7, INPUT) ;
  11   pullUpDnControl(7, PUD_UP);
  12
  13   while(1)
  14   {
  15     if (digitalRead(7) == LOW) //Low is pressed
  16       printf("Yay!\n");
  17
  18       while(digitalRead(7) == LOW) //This just  causes the loop to wait til the button is released
  19           delay(10);
  20   }
  21 }