How can I add an end line character after every value that I receive?

[GiggsB]

Not sure it's required, but probably should use serial.close() after you break from loop, or just prior to break.

Thank you for the suggestion.

[GiggsB]

I have an example you can try thats based upon your original code and the fact you said the mcu appended a newline.

Thank you Jeff_t, I will try this