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 →

Waveshare RP2040 Matrix MIDI Monitor

Following on from my ESP32C3 OLED Mini MIDI Montor and Waveshare Zero, Pimoroni Tiny, and Neopixels this project uses a Waveshare RP2040 mini Matrix display. This is largely the same pinout as the other Waveshare boards, but includes a 5x5 programmable LED (i.e. neopixel-like) matrix. https://makertube.net/w/cdxAJJvsqsPKrzVg6xWodD Warning! I strongly recommend using old or second hand equipment for … Continue reading Waveshare RP2040 Matrix MIDI Monitor →

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 →

Waveshare Zero, Pimoroni Tiny, and Neopixels

I want to revisit my Forbidden Planet “Krell” Display looking at an alternative way to do the electronics. In particular, I'm looking at how I might embed a microcontroller in each display. This post is a short diversion into the world of some Waveshare "Zero" format devices and a bit of background on driving programmable … Continue reading Waveshare Zero, Pimoroni Tiny, and Neopixels →

Forbidden Planet “Krell” Display – MIDI CC Controller

This takes my Forbidden Planet “Krell” Display and adds some potentiometers to turn it into a MIDI CC message controller. Forbidden Planet “Krell” Display – MIDI CC Controller – Part 2 https://makertube.net/w/vz9RucdW1oi2XzAqPBa96g 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 Forbidden Planet “Krell” Display – MIDI CC Controller →

ESP32C3 OLED Mini MIDI Montor

I've picked up a couple of really neat, small, ESP32C3 based boards with a built-in 0.42" OLED display and so whilst wondering what to do with them, I thought a small MIDI note monitor might be a bit of fun. https://makertube.net/w/3KWE9QUD2Qs9chcWwpX99R Warning! I strongly recommend using old or second hand equipment for your experiments. I … Continue reading ESP32C3 OLED Mini MIDI Montor →

Raspberry Pi 2,3,4 A+/B+ Synth Cases

As a prelude to building a case for some of my MiniDexed synth PCBs I was looking for a good starting point for a Raspberry Pi 3D printed case. I've found two, but neither was quite what I wanted, so I took inspiration from the two I found and created my own. This will go … Continue reading Raspberry Pi 2,3,4 A+/B+ Synth Cases →

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 →

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 →