https://onlinedocs.microchip.com/oxy/GUID-317042D4-BCCE-4065-BB05-AC4312DBC2C4-en-US-2/GUID-EBFE53CC-F332-401B-AF32-C905B9DACBC0.html https://onlinedocs.microch

https://onlinedocs.microchip.com/oxy/GUID-317042D4-BCCE-4065-BB05-AC4312DBC2C4-en-US-2/GUID-EBFE53CC-F332-401B-AF32-C905B9DACBC0.html https://onlinedocs.microchip.com/oxy/GUID-317042D4-BCCE-4065... https://www.nongnu.org/avr-libc/user-manual/group__avr__stdlib.html https://www.nongnu.org/avr-libc/user-manual/group__avr__stdl... https://manpages.debian.org/testing/avr-libc/ultoa.3avr.en.html https://manpages.debian.org/testing/avr-libc/ultoa.3avr.en.h... https://www.ibm.com/docs/en/zos/2.4.0?topic=functions-utoa-convert-unsigned-int-into-string https://www.ibm.com/docs/en/zos/2.4.0?topic=functions-utoa-c... https://www.qnx.com/developers/docs/6.3.2/neutrino/lib_ref/u/utoa.html https://www.qnx.com/developers/docs/6.3.2/neutrino/lib_ref/u... Here is the documentation for the problem you mentioned.