SoftwareSerial: read
描述
回傳軟體序列介面接收到的資料。
請注意,同一時間只能有一個 SoftwareSerial
物件接收資料,監聽指定 SoftwareSerial
物件請呼叫 listen()
。
參數
無參數
回傳
char
:回傳軟體序列介面接收到的資料中最先收到的字元,如果沒有資料可以讀則回傳 -1
範例
SoftwareSerial mySerial(10,11); void setup() { mySerial.begin(9600); } void loop() { char c = mySerial.read(); }
See also
- SoftwareSerial()
- begin()
- print()
- println()
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.