Currently testing a NanoPI Neo. The basic display works. Now it is time to get the touch working.

For a 4 axis cnc router a single ESP may not be a good choice. The final axis speeds would be very slow.

The NanoPi has 4 cores and I will try to spawn worker threads for the steppers across the cores where they wait for positioning commands.

One core will be used only to monitor the feedback signal and the other cores for motion and UI.