?? what is your question about?
-a- do you have a communication problem like the header title suggests
-b- make 4 (int) variables from (string) array?
one of the main things also suggested in the linked discussions is
that you need to check
after the split “,”
prior to use stringarray[x]
is the length of the resulted array after split. ? are there x elements or is it shorter…
if( seperateValues.length >=4 ) { feld1 = int(seperateValues[0]); ... }
anyhow, how can you code and look for errors in dealing with dynamic strings
if you not even print the incoming arduino line??