Just improving the EVO PCBs. The EVOIII Motionboard is still the current thing and may not change anytime soon. It is very nice but can only be used with the ILI display.

The new concept with the waveshare display requires a different board. That's where the EVOIV will take over.

It provides a power USB port that is required to power the waveshare display. Even if the display, a CAN interface and also a UART2 interface. Both a used for the display. The CAN bus may be used to drive two Makerbase Servo42D motors in torque mode later. 

The board supports up to 6 steppers and is designed with XYUV compatibility in mind but can also be used as normal XY/XYZ/Z controller.

It also has a little mosfet that can switch a little load. No planned use of it yet but nice to have.

The pulseboard itself also got a little remake. Instead of using a poti to adjust the vFd feedback voltage it will now use a fixed value voltage divider network. The small JST wire bridge is also gone and was replaced by SMD jumpers. 

Another change is the FAN connector. It provides a 3Pin connector that matches the Arctic P12 Fan I use.

More plug and play, less troubles.

G-EDM EVOIV Motionboard

G-EDM EVOIV Pulseboard