# MIDI Routing and interfacing

**URL:** <https://discourse.zynthian.org/t/midi-routing-and-interfacing/8146>\
**Category:** Related Projects\
**Created:** [June 13, 2023, 10:48am UTC](https://discourse.zynthian.org/t/midi-routing-and-interfacing/8146 "2023-06-13T10:48:51Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ToFF](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/toff/32/5532_2.png) [@ToFF](https://discourse.zynthian.org/u/ToFF)\
**Post date:** [June 14, 2023, 5:37am UTC](https://discourse.zynthian.org/t/midi-routing-and-interfacing/8146/2 "2023-06-14T05:37:11Z")

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> [@mbvs](#):
>
> I am currently about to build a RP2040 based midi merger/patchbay as an USB device to connect computer (DAW) , Zynthian, Keyboard and an Emu Protheus together.

I made a three-way splitter/merger from three RP2040s. Programmed in Python, unfortunately the utility often dies. It would probably require a printed circuit board with a well done ground to eliminate random signals.

 ![IMG_20230215_200738](https://discourse.zynthian.org/uploads/default/original/2X/4/4af5c2ef44bf1ae01f560679fd6bce480f08e5b1.jpeg)  
I like E-MU Protheus 2000 too [Show me your setup! - #12 by ToFF](https://discourse.zynthian.org/t/show-me-your-setup/7713/12)

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