sbicbi.ino

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#define sbi(r,b)  r |= _BV(b)
#define cbi(r,b) r &= ~_BV(b)
#define cbi(r,b) r &= ~_BV(b)
 
 
void setup() {
 
 
  sbi(DDRB, 5);
  cbi(DDRB, 0);
 
  sbi(PORTB, 0);
 
  sbi(PORTB, 5);
  delay(1000);
  cbi(PORTB, 5);
  delay(1000);
  sbi(PORTB, 5);
  delay(1000);
  cbi(PORTB, 5);
  delay(1000);
 
  Serial.begin(9600);
}
int i = 0;
void loop() {
   
  // put your main code here, to run repeatedly:
  if (! rbi(PINB, 0) )
    Serial.println(i++);
}