i am trying to connect an external joystick to my mpcnc using marlin and a MKS gen L
I have tried to connect it to AUX1 like shown, but i get nothing, usually when i plug my arduino into the computer, the TX light blinds and on the monitor i get the transmission showing.
But when i plug it into the board. the TX light never blinks. almost like it never opens the port.
Anyone have any idea how to get this to work.
I am following this information
I know the bloke mentioned it on here or the facebook group.