I have an OX CNC with a CNC XPRO3. The spindle I’m using is a Chinese 400W one with a BLDC Controller type HX-WS400. The spindle speed is currently controlled via a pot supplied with the controller. I’m not too bothered about controlling the spindle speed via the software, but would like to implement some form RPM display. Don’t know if I could use the PWM connections on the controller to achieve this. Can anyone help please?