编译时报错误

for

void loop(){
  //check and see if a data packet has come in.
  if(ET.receiveData()){
    //this is how you access the variables. [name of the group].[variable name]
    //since we have data, we will blink it out.
    for(int i = mydata.blinks; i>0; i--){
      digitalWrite(13, HIGH);
      delay(mydata.pause * 100);
      digitalWrite(13, LOW);
      delay(mydata.pause * 100);
    }
  }

  delay(2500);
}                                  这是代码



Arduino:1.5.6-r2 (Windows XP), 板："Arduino Uno"

sketch_apr26a.ino: In function 'void loop()':
sketch_apr26a:3: error: 'ET' was not declared in this scope
sketch_apr26a:6: error: 'mydata' was not declared in this scope

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错误信息

Super169

ET 及 mydata 在程式中沒有定義, 自然要出 error 了.

林定祥

两个变量用之前要先定义。