attiny13a - rele + tlacitko

/*
 * t13-tlacitko-rele.c
 *
 * Created: 07.05.2020 12:53:28
 * Author : martin
 */

#include <avr/io.h>
#define RELE_ON     PORTB|=(1<<PB0);
#define RELE_OFF    PORTB&=~(1<<PB0);
uint8_t stateTl=0;
uint8_t stateOut=0;

int main(void)
{
    DDRB|=(1<<PB0);     // PB0 - vystup
    PORTB|=(1<<PB2);    // PB2 vstup proti zemi
    while (1)
    {
        if (!(PINB&(1<<PB2)) && stateTl==1)
        {
            stateTl=0;
            if (stateOut)
                { stateOut=0;   RELE_OFF;}
            else
                { stateOut=1; RELE_ON; }
        }
        if (PINB&(1<<PB2)) stateTl=1;
    }
}