#include <avr/io.h>

int main(){
	DDRB |=1 << PINB0;
	int baud = 25;
	UBRRH = (unsigned char)(baud>>8);
	UBRRL = (unsigned char)baud;

UCSRB = (1<<RXEN)|(1<<TXEN);
/* Set frame format: 8data, 2stop bit */
UCSRC = (1<<URSEL)|(1<<USBS)|(3<<UCSZ0);
	unsigned char rd;

	while(1){
		while (! (UCSRA & (1 << RXC)) );
		rd = UDR;
		if(rd==0b10101010){
			PORTB ^=1 << PINB0;
			PORTB &=~(1<<PINB1);
		}
		else{
			PORTB |=1 << PINB1;
		}


	}




}