I am using this board:
And from here, I believe that the Pro Micro only has one Hardware Serial port, on pins RX1 and TX0:
I cannot see another RX or TX label anywhere on the board when I look at its pinout.
I am using this board:
And from here, I believe that the Pro Micro only has one Hardware Serial port, on pins RX1 and TX0:
I cannot see another RX or TX label anywhere on the board when I look at its pinout.