/*
   Demo of the simplest on/off button code for Tiny44
   Button connected to PA5 (physical pin 8 on tiny44)
   Red LED connected to PB2 (physical pin 5 of tiny44)
   
   For details on the use of the registers PORtx, DDRx, and PINx  (where x = A or B) see tutorials on AVR programming.

  This program was written by Robert Hart as a simple demonstration of programming AVR microcontrollers. 
	

*/

// ------- Preamble -------- //
#include <avr/io.h>

int main(void) {
  // -------- Inits --------- //
  //PORTA = 0b00100000;  						      /* initialize pullup resistor on our input pin by setting bit 5 of register PORTA high. */
  DDRA = 0b10000000;                      /* set up pin 2 of port B for output by setting bit 2 of register DDRB high.*/

  // ------ Event loop ------ //
  while (1) {

      if ((PINB & 0b00000100) == 0 ) { 		//look for a button push on PB2//
	       PORTA = 0b10000000;              //if button is pushed, send a signal to wifi module TX via PA3 to open webpage//
      }
      if ((PINB & 0b00000100) == 0 ) {    //look for a signal from FTDI via PA0//
         PORTA = 0b10000000;              //if signal is sent, send signal to wifi module TX via PA3 to open webpage//
      }
      if ((PINB & 0b00000100) == 0 ) {    //look for a signal from WIFI RX via PA2//
         PORTA = 0b10000000;              //if signal is received, send signal to FTDI via PA0 //
      }
      else {                              /* otherwise */
        PORTA = 0b00000000;					      /* leave output low.	*/
      }
  }										
  /* End event loop */
  return (0);	
}