Maslow 4 Schematics - updated for JST-XH

Hardware
1

Aloha!

Is there an updated schematic for the JST-XH 5-motor control board?

I’m working on a project to control a spindle from FluidNC. I plan to create a closed-loop speed controller for my brushless DC spindle using a Raspberry Pi and emulating a VFD (according to documentation, FluidNC is equipped to control a Huanyang HY).

I think it was @dlang who told me that the new JST-XH boards had more pins available for use because they have fewer LEDs to drive than the ethernet-cabled ones, and while I don’t need to know right now, it is definitely part of the project.

Mahalo,

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2

Good catch, I’ll post the update schematics.

We have an extra pin available in theory, but it’s not connected to anything so the pins available on the JSTXH boards are identical to the older style boards

3

The updated files are now there :grinning:

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4

Mahalo!

5

Looking at the schematics and maslow.yaml, it looks like I might be able to just use serial TX/Serial RX to communicate with my speed controller? They are exposed at U4, pins 3 and 4, and it doesn’t look like they’re in use.

Mahalo,

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6

You certainly should! If you run into any issues let us know and we’ll sort them out

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