Yes i'm sure, I have a little piece that allows me to choose between 5 and 3.3 V. At the beginning I didn't use CTS at all either, but in some forums they connected it also so I tried it but doesn't change anything.
Yes i'm sure, I have a little piece that allows me to choose between 5 and 3.3 V. At the beginning I didn't use CTS at all either, but in some forums they connected it also so I tried it but doesn't change anything.