Can't write data into variable

Projects Programming
11

andagent:
void setup(){
String fileData;
File dataFile = SD.open("settings.txt", FILE_READ);
while (dataFile.available()){
fileData = fileData + dataFile.read();

}

Serial.print(fileData);
}
void loop(){
}

  • You need to call SD.begin().
  • Check that dataFile successfully opens.
  • Print a fixed piece of text (eg. "The data: ") before the fileData so you are sure you can see something happening.