2020-11-07, 11:25 AM
I am in the same situation as Max1947. However, the red led remains on, whether or not the controller is connected to the Raspberry. I will also start from a new installation of OpenPlotter, but this is not obvious, the documentation is missing, we learn by chance part of the operation of the LEDs. I have reversed Rx and Tx as proposed by Andreas29, it does not change anything. I returned to the recommended connection. It takes a very long time and it doesn't work.