5 votes
Accepted

Read one byte from file and convert to decimal

Ok, I got it working now, here's what was happening: Turns out the file wasn't being opened. Why? seems like there's a limitation on the filename length, I noticed this after adding the lines: root....
melev's user avatar
  • 71
3 votes

Construct Strings with UTF-8 characters from data

As you have noticed, Serial doesn't know how to deal with wchar_t. If you are building your strings algorithmically from Unicode code points, you need to convert those code points to UTF-8 for ...
Edgar Bonet's user avatar
  • 43.1k
1 vote

Read one byte from file and convert to decimal

Consider adding a call to SD.begin() as is done in the example found on this arduino.cc web page. Here's the section of the example code where SD.begin() is used: Serial.print("Initializing SD ...
st2000's user avatar
  • 7,343

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