blink-t85/blink.c


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#include <avr/io.h>
#include <util/delay.h>

int main(void) {
  DDRB |= _BV(PB1);
  while (1) {
    PORTB |= (1<<2);
    PORTB &= ~(1<<3);
    _delay_ms(500);
    PORTB &= ~(1<<2);
    PORTB |= (1<<3);
    _delay_ms(500);
  }
  return 0;
}