Day 1 02 - serial

// the setup function runs once when you press reset or power the board
void setup() {
  Serial.begin(9600);
  Serial.println(78, DEC);
  Serial.println(78, HEX);
  Serial.println(78, BIN);

  Serial.println(1.23456, 0);
  Serial.println(1.23456, 2);
  Serial.println(1.23456, 4);

  // pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
}

시리얼 통신(10진수, 16진수, 2진수)

LED 1초마다 HIGH, LOW