#define F_CPU 1000000UL 
 
    #include <avr/io.h>  
    #include <util/delay.h>


     //incializace adc
    void init_ADC()   { 
    ADMUX=(1<<REFS0); 
    ADCSRA=(1<<ADEN)|(7<<ADPS0); 
        } 
    //cteni z adc  
    unsigned int read_ADC(unsigned char kanal)   { 
    kanal=kanal&0b00000111; 
    ADMUX|=kanal; 
    
    ADCSRA|=(1<<ADSC); 

    while(!(ADCSRA & (1<<ADIF)));    
    
    ADCSRA|=(1<<ADIF); 

    return ADC; 
    }
    

      
    int main(void)   
    {  
        unsigned int vysledek;
        DDRD=0xFF;
        PORTD=0x00;	     


	

	init_ADC();		//inicializace AD

	while (1) {	                //merime a svitime furt dokola...
		vysledek=read_ADC(0);	//merime na kanalu 0 (PC0) :-)
        PORTD=vysledek;
        _delay_ms(10);
		
	
	}

}