just a quick question: would it be possible to modify the WLED code to have 2 different modes :
1- WLED interface
2- driven by computer by COM port (linked to car speed for example)
I would like to choose with a button, to switch from one mode to another one
There is a builtin serial interface: KB Serial
As far as I know they both work simultaneously.
That would mean when you you lose WiFi or the builtin AP fires up, serial would be the only thing sending valid data. To disable serial, you could just disconnect the Rx data (with a switch if you like).
Some more details on what you’re trying to accomplish might give some other ideas.