#include <avr/io.h>
#include <avr/eeprom.h>
#include <util/delay.h>

uint16_t adcval EEMEM;

int main(void)
{
	TCCR1C = _BV(COM1D0) | _BV(COM1D1) | _BV(PWM1D);
	TCCR1A = _BV(PWM1A) | _BV(PWM1B);
	TCCR1B = 0x80 | _BV(CS13) | _BV(CS12);
	OCR1C = 0xFF;
	OCR1D = 0x20;
	TCNT1 = 3;
	DDRB |= _BV( PB5 );
	PORTB &= ~_BV( PB5 );

	ADCSRA = _BV(ADEN) | _BV(ADATE) | _BV(ADPS1) | _BV(ADPS0);
	ADMUX = _BV(REFS1) | _BV(MUX0);
	ADCSRB = _BV(REFS2);
	DIDR0 = _BV(ADC1D) | _BV(AREFD);

	ADCSRA |= _BV(ADSC);
	_delay_ms(1000);
	eeprom_write_word(&adcval, ADCW);

    DDRA |= _BV( PA0 );
    while( 1 ) { 
        PORTA |=  _BV( PA0 );
        _delay_ms(2000);
        PORTA &=~ _BV( PA0 );
        _delay_ms(2000);
    }
}