Hello!

First, sorry for my eng.
If i compiled this program:

void setup()
{
	Serial.begin(115200);
}

void loop()
{
	String S = "Привет мир!"; // That means "Hello world!" on russian
	byte i = 0;

	while (S[i] != 0 ) {
		Serial.println(S[i++], HEX);
	}
}
 

Under Visual Micro, I've got next result:
Port open
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
20
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
FFFFFFEF
FFFFFFBF
FFFFFFBD
21

Under Arduino IDE, I've got:
FFFFFFD0
FFFFFF9F
FFFFFFD1
FFFFFF80
FFFFFFD0
FFFFFFB8
FFFFFFD0
FFFFFFB2
FFFFFFD0
FFFFFFB5
FFFFFFD1
FFFFFF82
20
FFFFFFD0
FFFFFFBC
FFFFFFD0
FFFFFFB8
FFFFFFD1
FFFFFF80
21

Why Visual Micro can't understand non US characters? 

Hi,

This has been tested and it works okay if you save your .ino file with encoding. "File>Save As with Encoding" (utf8) 

After you do this once it should work okay and remember the file encoding when saving normally.

If the files are not saved with encoding then atmel studio will convert non-ascii chars to questions ????

ps: I notice the default in atmel studio for .cpp files does not cater for non-us characters, but Visual Studio automatically prompts when you enter or paste unicode into the source.