read()
描述
读取序列埠收到的资料。read()
是继承于 Stream 类别。
语法
适用所有板子:
Serial.read()
Serial1.read()
适用 86Duino ONE:
Serial2.read()
Serial3.read()
Serial485.read()
适用 86Duino EduCake:
Serial2.read()
Serial3.read()
Serial232.read()
参数
回传
读取传进来的 byte 值 (假如没有收到任何资料,则回传 -1) int 型别
范例
int incomingByte = 0; // 储存值的变数 void setup() { Serial.begin(9600); // 设定 Serial 为 9600 鲍率 } void loop() { // 只有在收到值的时候才送资料 if (Serial.available() > 0) { // 读取传送进来的 byte: incomingByte = Serial.read(); // 说你收到了什么 Serial.print("I received: "); Serial.println(incomingByte, DEC); } }
See also
- Serial
- available()
- begin()
- end()
- find()
- findUntil()
- flush()
- parseFloat()
- parseInt()
- peek()
- print()
- println()
- readBytes()
- readBytesUntil()
- setTimeout()
- write()
- serialEvent()
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.