how to load a character font set to display äöü ÄÖÜ ß and °(degree) ?

[dsyleixa]

how to load a font set to display äöü ÄÖÜ ß and °(degree) ? (German kbd)

[kaneetz]

You need to make custom characters for it!
https://maxpromer.github.io/LCD-Character-Creator/

[dsyleixa]

I honestly don't understand how to use that for arbitrary words or lines like

float T1=21.4, T2= 5.8;
lcd.setCursor(0,0);
lcd.print( (String)"Außentemp.= " + (String)T1 +  " °C:");
lcd.setCursor(0,1);
lcd.print( (String)"Kühlschrank=" + (String)T2 +  " °C:");

at least that custom char createChar thing looks extremely cumbersome for muliple and longer arbitrary words, so actually a font set would be needed.