USB MIDI to Serial and CV/GATE

This project uses my Arduino Pro Mini MIDI USB CV PCB for a USB MIDI to Serial MIDI and CV/GATE device that has a CV/GATE that is compatible with my Korg Volca Modular. It takes MIDI NoteOn/NoteOff and translates them into CV that can be used to set the pitch of a CV/GATE synth. IMPORTANT: … Continue reading USB MIDI to Serial and CV/GATE →

picoDexed + MiniDexed EuroRack

Since attempting my picoDexed + StackyPi + MiniDexed EuroRack build and failing, I've found another Pico-to-Zero board that is provided as open source, so I've had some made. This post details how to get that running with my MiniDexed Zero Eurorack module. Warning! I strongly recommend using old or second hand equipment for your experiments. I … Continue reading picoDexed + MiniDexed EuroRack →

picoDexed + StackyPi + MiniDexed EuroRack

Now that I have a picoDexed with a display an encoder it is very tempting to create a version of my MiniDexed EuroRack PCB for it. But as a short diversion, there is another possibility - can I use a RP2040 that is already in a Pi Zero form factor with my existing MiniDexed EuroRack … Continue reading picoDexed + StackyPi + MiniDexed EuroRack →

MT32-Pi on my EuroRack MiniDexed PCB

This is great. I was asked by Michel (mragutlich) if I knew how to build MT32-Pi to configure it for my MiniDexed EuroRack PCB but I don't and there isn't a lot of information apparently on how to build it from source. So I offered my Rebuilding my Ability to Build MiniDexed post which talks about … Continue reading MT32-Pi on my EuroRack MiniDexed PCB →

Forbidden Planet “Krell” Display EuroRack Module

This project uses my Forbidden Planet “Krell” Display and the Forbidden Planet “Krell” Display PCB Design but with some slight variations that means it could be EuroRack mounted with a control voltage (CV) input. This is a DIY module only for use in my own DIY system. Do NOT use this alongside expensive modules in an … Continue reading Forbidden Planet “Krell” Display EuroRack Module →

MiniDexed EuroRack PCB Build Guide

Here are the build notes for my MiniDexed EuroRack PCB Design. This is a DIY module only for use in my own DIY system. Do NOT use this alongside expensive modules in an expensive rack. It is highly likely to cause problems with your power supply and could even damage your other modules. Warning! I strongly … Continue reading MiniDexed EuroRack PCB Build Guide →

EuroRack 6HP Daisy Seed MCU PCB Design

Having recently acquired a Daisy Seed to play with, it seemed natural to produce an MCU board for use with my EuroRack 6HP MCU Experimenter Module. EuroRack 6HP Daisy Seed MCU PCB Build Guide. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! If … Continue reading EuroRack 6HP Daisy Seed MCU PCB Design →

MiniDexed EuroRack PCB Design

I've seen a number of EuroRack format MiniDexed versions now, from 3D printed panels and designs, right through to commercial modules. It's something I've been meaning to do for a while, so this is my first attempt at a take on a 8HP EuroRack format MiniDexed using a Raspberry Pi Zero 2 W. This is … Continue reading MiniDexed EuroRack PCB Design →

EuroRack Test Power Supply PCB Design

I've a few EuroRack power supplies now, and most of them have a few things in common: Require an AC to AC "wall-wart" (typically 12VAC or above). Use diodes for half-wave rectifying and a large bank of capacitors for smoothing the resulting output. Use a 7912 and 7812 for -12V and +12V supply, and some … Continue reading EuroRack Test Power Supply PCB Design →

CakeBox 30HP EuroRack Lid

Now that I'm doing more messing around with EuroRack style modules, I was on the lookout for a simple means of testing them "on the bench". As I was scanning around, for different ready-made containers I might be able to use, I settled on the spare plastic cake boxes we have lying around. These often … Continue reading CakeBox 30HP EuroRack Lid →