bitWrite()

설명

숫자 변수의 한 비트를 씁니다.

문법

bitWrite(x, n, b)

매개변수

  • x: 쓸 숫자 변수
  • n: 쓸 비트의 위치, LSB(맨 오른쪽 비트)가 0, 왼쪽으로 갈수록 1씩 증가
  • b: 비트에 쓸 값 (0 또는 1)

반환값

  • 없음

예제 코드

void setup() { Serial.begin(9600); byte x = 0b10000000; // the 0b prefix indicates a binary constant Serial.print("BEFORE: "); Serial.println(x, BIN); // 10000000 bitWrite(x, 0, 1); // write 1 to the least significant bit of x Serial.print("AFTER: "); Serial.println(x, BIN); // 10000001 } void loop() {}

The result in Serial Monitor:

Newbiely | Arduino IDE 2.3.8
──
File
Edit
Sketch
Tools
Help
Arduino Uno
Newbiely.ino
···
8 Serial.println("Hello World!");
Output
Serial Monitor
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
BEFORE: 10000000 AFTER: 10000001
Ln 11, Col 1
Arduino Uno on COM15
2

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