Hi Eugeniu,

as I have already explained in my first post:
use the DIG modifier to separate the single digits of your calculated temperature.
Then simply add 48 to each digit and you will get the ASCII code.

If temperature is 2555 for 25.55°C
n0 = (temperature dig 0) + 48

n0 is 48+5 = 53 = ASCII "5"
...

Regards,

Ingo