SoftwareSerial: isListening()

描述

檢查軟體序列介面是否被監聽中。

語法


mySerial.isListening()

參數

無參數

回傳

boolean:如果該軟體序列介面被監聽中則回傳 true,反之回傳 false

範例

#include <SoftwareSerial.h>

// 創建新的軟體序列介面,TX 在數位腳位 10,RX 在數位腳位 11
SoftwareSerial portOne(10,11);

void setup()
{
  // 啟動硬體序列介面
  Serial.begin(9600);

  // 啟動軟體序列介面
  portOne.begin(9600);
}

void loop()
{
  if (portOne.isListening()) {
   Serial.println("Port One is listening!"); 
}

See also

SoftwareSerial()
read()
print()
println()


函式庫參考主頁面

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.