embeddist: Note3 - Hello World

2014년 11월 18일 화요일

Note3 - Hello World

ArduinoNote List-page
PREVIOUS: Note2 - Blink sketch

Hand-on #2 : Hello World

-"Hello World" Program을 해보자
-Hand-on #1에서 실습한 Blink Example을 바탕으로 Hello world를 출력하기 위해 UART (Serial)를 극복하자.

Setting Serial Port on Sketch IDE

Sketch IDE를 실행한 뒤 메뉴에서 Tools를 클릭하여 아래와 같이 Port를 설정한다.

Serial Port를 설정한다.
- OS가 Windows일 경우
- OS가 Linux일 경우

Serial monitor의 실행을 위해 오른쪽 상단의 돋보기 아이콘을 클릭

Serial monitor 실행모습

Skeleton Code based on Blink sketch

[code lang=cpp]
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
// Open serial communitaions at 9600 bps (bit per seconds)
// ...insert codes #1...
// print "Blick Example"
// ...insert codes #2...
}

// the loop function runs over and over again forever
void loop() {
// print "Hello World"
// ...insert codes #3...
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
[/code]

Hello World based on Blink sketch

[code lang=cpp]
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
// Open serial communitaions at 9600 bps (bit per seconds)
Serial.begin(9600);
// print "Blick Example" or own message
Serial.println("Blick Example");
}

// the loop function runs over and over again forever
void loop() {
Serial.println("Hello World!");
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
[/code]