I'm trying to read a string send over serial and process it. Printing the string is no issue, and shows the correct string, but when i try make a substring, and check if it contains different substrings it does not work. 

I tried to test the length of the string and it gives a sequence of 1's in the length of the string. So it seems that the string is an array of single char strings.. 

Any good suggestions to solve this problem?

Best regards Jakob