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Serial.readString()
설명
Serial.readString()직렬 버퍼에서 하나의 문자열로 문자를 읽습니다. 시간이 초과되면 함수가 종료됩니다 (Serial.setTimeout() 참조).
Serial.readString()은 Stream 유틸리티 클래스에서 상속합니다.
문법
Serial.readString()
매개변수
- Nothing
반환값
- 시리얼 버퍼에서 읽어들인 하나의 문자열입니다.
예제 코드
void setup() {
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
void loop() {
// check if data is available
if (Serial.available() > 0) {
// read the incoming string:
String incomingString = Serial.readString();
// prints the received data
Serial.print("I received: ");
Serial.println(incomingString);
}
}
- Type "HELLO" on Serial Monitor and click Send button:
COM6
Autoscroll
Clear output
9600 baud
Newline
- 시리얼 모니터에 결과:
COM6
I received: HELLO
Autoscroll
Clear output
9600 baud
Newline
※ 주의 및 경고:
- Serial.readString() may read a single incoming string in multiple times (resulting in multiple fragments). To read a single string at one time, use Serial.readStringUntil() with delimiter instead.
- Serial functions are not only used for the communication between an Arduino board and Serial Monitor of Arduino IDE but also used for the communication between:
- An Arduino board and other Arduino board
- An Arduino board and other sensors/devices
- An Arduino board and computer (any Serial software on computer)
더보기
- 언어 : Arduino - Serial
- 언어 : Serial.available()
- 언어 : Serial.begin()
- 언어 : Serial.end()
- 언어 : Serial.find()
- 언어 : Serial.findUntil()
- 언어 : Serial.flush()
- 언어 : if(Serial)
- 언어 : Serial.parseFloat()
- 언어 : Serial.parseInt()
- 언어 : Serial.peek()
- 언어 : Serial.print()
- 언어 : Serial.println()
- 언어 : Serial.read()
- 언어 : Serial.readBytes()
- 언어 : serialEvent()
- 언어 : Serial.setTimeout()
- 언어 : Serial.write()
※ ARDUINO BUY RECOMMENDATION
| Arduino UNO R3 | |
| Arduino Starter Kit |
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