#include <avr/io.h>    		

#define LED 7
#define SENSOR 1

int main(void) 
{	
	DDRB = DDRB & ~(1<<SENSOR);		
	DDRC = DDRB | (1<<LED);				
	while (1)
	{
		if(PINB & (1<<SENSOR))
			PORTC |= (1<<LED);		
		else
			PORTC &= ~(1<<LED);	
	}
	
	return 0;
}