Duppa I2C MIDI Controller PCB Build Guide

Here are the build notes for my Duppa I2C MIDI Controller PCB. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! If you are new to microcontrollers, see the Getting Started pages. Bill of Materials Duppa I2C MIDI Controller PCB (GitHub link … Continue reading Duppa I2C MIDI Controller PCB Build Guide →

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 →

Minimalist Lo-Fi Minimalism

Whilst I'm not an ardent fan of Philip Glass, (more like an amateur enthusiast), there are certain pieces of his that I do really quite like. The violin concerto goes without saying - some parts of that are wonderful. And I quite like the Low Symphony based on the music of David Bowie. But the … Continue reading Minimalist Lo-Fi Minimalism →

Simple MIDI Transpose

I've done a number of MIDI processing projects, but was always planning to go back and build up some kind of catalogue of common actions that could be taken. But so far I've not done it, but when a question came in asking about the possibility of a MIDI transpose function, I thought I'd put … Continue reading Simple MIDI Transpose →

Forbidden Planet “Krell” Display – MIDI Notes – Part 2

As I mentioned in Forbidden Planet “Krell” Display – MIDI Notes I'm building a simple (in function, not in execution it would seem) MIDI note display out of my Forbidden Planet “Krell” Display. The first attempt showed there is potential, but I was rapidly reaching the limits of what an Arduino could do for me using … Continue reading Forbidden Planet “Krell” Display – MIDI Notes – Part 2 →

Forbidden Planet “Krell” Display – MIDI Notes

This is my first attempt at some kind of MIDI related visualisation for my Forbidden Planet “Krell” Display. I thought I'd start easy and simply map MIDI notes onto the segments and create a simple display. That turned out to be an awful lot more involved than I imagined... In fact, this is quite sub-optimal … Continue reading Forbidden Planet “Krell” Display – MIDI Notes →

EuroRack 6HP Arduino Mozzi Module – Basic VCO

This is the first project based on my EuroRack 6HP Arduino Mozzi Module. It is loosely based on HAGIWO's Arduino Mozzi VCO Module. https://makertube.net/w/hnocMAhYkajd8nX2vwuR2u Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! These are some previous posts for the main concepts … Continue reading EuroRack 6HP Arduino Mozzi Module – Basic VCO →

Arduino Euclidean Gate Sequencer – Part 3

This is another variant of my Arduino Euclidean Gate Sequencer this time using a rotary encoder and I2C display rather than a potentiometer for control. Part 1 covered all the theory and main functions of the code. Part 2 included some hardware suggestions for connecting it to other devices. Part 3 added a rotary encoder and I2C display … Continue reading Arduino Euclidean Gate Sequencer – Part 3 →

Arduino Euclidean Gate Sequencer

I've always liked the idea of mathematics, algorithms and their application to music, so a Euclidean Sequencer has been on my list of things "to do" for a while. This is my take on how to build one from an Arduino. This post focuses on the code and algorithms - some more useful hardware will … Continue reading Arduino Euclidean Gate Sequencer →

Educational DIY Synth Thing – Part 3

In the first part I described the concept and basic design parameters I was looking for and then in Part 2 I looked at the detailed electronic design for a board based on the ESP32 WROOM module I have. In this part I go into detail about the code. Part 1 - This introduction and … Continue reading Educational DIY Synth Thing – Part 3 →