Special characters

[podaen]

How could I print special characters with drawstring. Take this character is not displayed °

[Bodmer]

That symbol is only included in one font:

https://github.com/Bodmer/TFT_eSPI/blob/master/Fonts/Font16.c#L1-L8

The symbol could be included in a Smooth font.

Alternatively you can use a suitably positioned lower case letter "o" in a smaller font.

[Bodmer]

See example here where I used string "oC" for the celcius marker.

[podaen]

The fond looks nice of the example. Which is it? How did you get the string up there?

[Bodmer]

This sketch:
https://github.com/Bodmer/OpenWeather/tree/master/examples/TFT_eSPI_OpenWeather_LittleFS

Code:
https://github.com/Bodmer/OpenWeather/blob/master/examples/TFT_eSPI_OpenWeather_LittleFS/TFT_eSPI_OpenWeather_LittleFS.ino#L400-L404

Fonts:
https://github.com/Bodmer/OpenWeather/blob/master/examples/TFT_eSPI_OpenWeather_LittleFS/TFT_eSPI_OpenWeather_LittleFS.ino#L37-L38

Font files:
https://github.com/Bodmer/OpenWeather/tree/master/examples/TFT_eSPI_OpenWeather_LittleFS/data/fonts

See also library examples for Smooth fonts.