// Transmit an 8 bit value as is via serial

void USART_transmit( unsigned char data ) {

	while ( !( UCSR0A & (1<<UDRE0)) )				// Wait for empty transmit buffer
    ;
	UCSR0A |= (1<<TXC0); 							// clear txc flag
	UDR0 = data;									// Put data into buffer, sends the data
}



// Transmit an unsigned 8 bit value as a series of up to three decimal characters

void USART_transmit_uint8(uint8_t val) {
	unsigned char buf[3];
	int8_t ptr;
	for(ptr=0;ptr<3;++ptr) {
		buf[ptr] = (val % 10) + '0';
		val /= 10;
	}
	for(ptr=2;ptr>0;--ptr) {
		if (buf[ptr] != '0') break;
	}
	for(;ptr>=0;--ptr) {
		USART_transmit(buf[ptr]);
	}
}