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  • What happens in you increase the delay? Commented Apr 1, 2015 at 15:25
  • @Gerben, is this an required option - to make a delay after build? Will try soon Commented Apr 1, 2015 at 15:30
  • Questions, questions: [1] What happens if you do a second Serial.print(<something>);? [2] What happens if you change the data rates (in code and Serial Monitor)? [3] If you change the first letter (H), does the displayed symbol change too? [4] If it does change, could you edit your question to include a list of half a dozen examples? The character you've shown is not part of neither the standard nor the extended ASCII tables. This suggests an extra byte is being sent or the Serial Monitor is adding the preceeding byte and decoding it along with the 'H'. Commented Jun 1, 2015 at 2:23
  • I had the same problem when were I sending data from the ptython script. First byte was alway lost. As a workaround I add unnecessery ser.read() before actual communication. ser was the name of the Serial instance. Commented Jun 1, 2015 at 8:57
  • @chaaarlie2: ‘¤’ is U+00A4. It's a single byte in quite a few 8-bit character sets, including Latin-1, several other ISO-8859 variations, and Windows-1252. Commented Jun 1, 2015 at 10:09

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