Hi
I have some troble with sprintf with arduino IDE 1.8.5 for UNO
char message[12];
sprintf(message,"%+02.2f",23.45);
(I used a float instead of 23.45 at the beginning)
gives one space and question mark (" ?")
f in the descriptor doesnt seem understood...
I tried some tricks as #include <stdio.h> or <math.h> with no effect
Some idea ?