void setup() {
  // initialize digital ATtiny 85  Pin 0 Broche 5.
  // Reset  1--^--8 Vcc (+)
  // Pin 3  2-----7 Pin 2
  // Pin 4  3-----6 Pin 1
  // GND(-) 4-----5 Pin 0
  
  pinMode(0, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(0, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait 
  digitalWrite(0, LOW);    // turn the LED off by making the voltage LOW
  delay(100);                       // wait 
}