Your serial monitor is probably configured to send a carriage return and/or new line at the end and that is what it is receiving. You could always print a better debug message than "huh?" to tell you what value it is seeing.
Your serial monitor is probably configured to send a carriage return and/or new line at the end and that is what it is receiving. You could always print a better debug message than "huh?" to tell you what value it is seeing.