Serial.write()

[Serial]

描述

Writes binary data to the serial port. This data is sent as a byte or series of bytes; to send the characters representing the digits of a number use the print() function instead.

語法

Serial.write(val)
Serial.write(str)
Serial.write(buf, len)

參數

• val: a value to send as a single byte
• str: a string to send as a series of bytes
• buf: an array to send as a series of bytes
• len: the length of the buffer

回傳

byte: write() will return the number of bytes written, though reading that number is optional

範例

void setup(){
  Serial.begin(9600);
}
 
void loop(){
  Serial.write(45); // send a byte with the value 45
 
   int bytesSent = Serial.write("hello"); // send the string "hello" and 
                                          // return the length of the string.
}

參考

• if (Serial)
• available()
• begin()
• end()
• find()
• findUntil()
• flush()
• parseFloat()
• parseInt()
• peek()
• print()
• println()
• read()
• readBytes()
• readBytesUntil()
• setTimeout()
• serialEvent()

語法參考主頁面

86Duino 參考的文本是根據 Creative Commons Attribution-ShareAlike 3.0 License，部分文本是從 the Arduino reference 修改的。 參考中的代碼示例已發佈到公共領域。