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#include <avr/interrupt.h>
#include <avr/io.h>
#include <stdio.h>

int main(void)
{


        DIDR0 = 0x00;

        DDRC  = 0x00;
        DDRB  = 0xFF;

        PORTB = 0x00;


        ADCSRA = (1 << ADEN) | (1 << ADATE) | (1 << ADIE) | (0b111 << ADPS0);
        ADCSRB = 0x00;

        ADMUX = (0b00 << REFS0) | (1 << ADLAR) | (0x0 << MUX0);

        sei(); // Interrupt Enable

        ADCSRA |= (1 << ADSC); // Start first conversion

        while (1) {     }

        return 0;
}

// PS2 Interrupt - Bit receive
ISR(ADC_vect)
{
        PORTB = ~(1 << ((ADCH * 8) / 255));
}