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目標是在COM端口輸入「on」和「off」,並切換引腳13.無論我做什麼。它不會打開或關閉。需要幫忙。我試圖看看我輸入的字符串是否「打開」。它打印「開」,但當我檢查結果時,它顯示出不同的結果。哪裏不對?從串口讀取問題()arduino UNO
String SData;
String SData1;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(13,OUTPUT);
digitalWrite(13,HIGH);
delay(5000);
digitalWrite(13,LOW);
delay(1000);
}
void loop() {
// put your main code here, to run repeatedly:
while(Serial.available()==0)
{
}
SData=Serial.readString();
SData1="on";
if(SData==SData1)
Serial.print("Same");
else
{
Serial.print("Different");
// Serial.print(SerialData-SerialData1);
Serial.print(".");
}
if(SData=="on")
{
digitalWrite(13,HIGH);
Serial.println("LED ON");
delay(2000);
}
Serial.println(SData);
if(SData=="off")
{
digitalWrite(13,LOW);
Serial.println("LED OFF");
delay(2000);
}
SData="";
}
https://stackoverflow.com/questions/513832/how-do-i-compare-strings-in- java – clabe45
@ clabe45除了Arduino沒有使用Java編程,而是C++的一個簡化變體。 –
哦,我的壞檢查Arduino論壇https://arduino.stackexchange.com/ – clabe45