Mit ADC und Poti, LEDs ansteuern

#include <avr/io.h>

#include <stdint.h>

#define L1  PD2   //LEDs

#define L2  PD3

#define L3  PD4

#define L4  PD5

#define L5  PD6

#define L6  PD7

#define S2  PC1  //Spalte von LED Matrix die ich ansteuern möchte

#define Freigeben(x)          PORTC &=~(1<<(x))

#define Sperren(x)     PORTC |=(1<<(x)); PORTD = 0b00000000

#define LED(x)       PORTD |=(1<<(x));

uint16_t adc()

{

  ADCSRA = (1<<ADEN)  | (1<<ADPS2) | (1<<ADPS0);

  ADMUX = 0;

  ADCSRA |=  (1<<ADSC);

  while (ADCSRA & (1<<ADIF));

  return ADCW;

}

int main()

{

DDRD |= (1<<L1)|(1<<L2)|(1<<L3)|(1<<L4)|(1<<L5)|(1<<L6);          

DDRC |= (1<<PC0)|(1<<S2);

PORTC |= 0b11111111;

while(1)

{

Freigeben(S2);

PORTD |= adc();

Sperren(S2);

}

}