Probaby a stupid question but how to use this fonction but from the right? in some language you just have to use the minus but it seems not to work with the substring.
String test = 12345688
I want to slipt the string from the last 2 digit, so 123456 and 88. The length of the string may vary so that why i want to go from the right so it will alway be the 2 last digit that will be split. I saw on the forum that it could maybe be achived by dtostrf() but didn't saw a good explanation. And for sure i want to keep this in String Thanks