The new EVOIII Router asked for a new motionboard that provides a better layout of the terminals. The core circuit is the same as the one used on the EVOII Motionboard but the connectors are placed more thoughtful.

One new feature is the option to connect an SD card module directly to the PCB. This should allow using longer wires for the display without risking data loss on the sd channel.

The common micro sd board seems to be made for arduinos 5v and does not work without hacking it. It has an AMS1117 voltage regulator on board that needs more then 3.3v input.

I just removed it and bridged two pads. This way it works. Maybe there are better solutions available.

This is just a feature for testing. Using the displays integrated SD card reader still works too.

I'm waiting for the new WAGO terminals and then have to test the isolated RX/TX channels once it is wired up.