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_29_Blink_Flash_ATTINY85.ino

void setup() {
  // initialize digital ATtiny pin 0 as an output.
  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 for a 100 ms
  digitalWrite(0, LOW);    // turn the LED off by making the voltage LOW
  delay(100);              // wait for  a 100 ms
}