Remotely Analysing a Keyboard Matrix

I've been having a conversation on discord helping someone to try to work out the keyboard matrix of a keyboard in order to eventually use it with a microcontroller. But discord being discord, its fine for chat, but we're both starting to lose track of where we're at in the analysis, so I thought I'd … Continue reading Remotely Analysing a Keyboard Matrix →

Waveshare Zero MIDI Proto PCB Build Guide

Here are the build notes for my Waveshare Zero MIDI Proto PCB Design. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! Bill of Materials Waveshare Zero MIDI Proto PCB (GitHub link below) 1x H11L1 optoisolator 1x 1N4148 or 1N914 signal diode … Continue reading Waveshare Zero MIDI Proto PCB Build Guide →

Waveshare Zero MIDI Proto PCB Design

In the spirit of several of the other microconroller prototyping MIDI boards I've already made, this is one for Waveshare Zero format boards. Waveshare Zero MIDI Proto 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 you are … Continue reading Waveshare Zero MIDI Proto PCB Design →

Duppa I2C MIDI Controller – Part 1

I've had my eye on Duppa's rather neat looking I2C LED rings and rotary encoders for some time and finally pushed "go" on getting a couple. I want to use them as the basis for a MIDI controller but this post is just my "getting to know them" post. Part 1 - getting to know the … Continue reading Duppa I2C MIDI Controller – Part 1 →

Pico Touch Board PCB Build Guide

Here are the build notes for my Pico Touch Board 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 and electronics, see the Getting Started pages. Bill of Materials Pico Touch Board PCB (GitHub link … Continue reading Pico Touch Board PCB Build Guide →

Pico Touch Board PCB Design

Ever since doing my Raspberry Pi Pico MIDI Touch Keyboard I've wanted something that would be crocodile clip/DIY friendly, so this is the result. Pico Touch Board 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 you are … Continue reading Pico Touch Board PCB Design →

Almost “All in one” MiniDexed IO Options

As I was browsing around I happened to notice a couple of interesting add-on boards that comprise a OLED display, rotary encoder and some buttons. With the addition of a I2S DAC (or just using the existing PWM output) these make a really interesting option for MiniDexed IO. Warning! I strongly recommend using old or … Continue reading Almost “All in one” MiniDexed IO Options →

Simple MIDI Touch Button Keyboard

I've grabbed some very cheap TTP223-based touch pad PCBs so this is showing how they can be used as a replacement button in a simple Arduino MIDI controller. 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 the key … Continue reading Simple MIDI Touch Button Keyboard →

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 →

EuroRack 6HP Daisy Seed MCU PCB Build Guide

Here are the build notes for my EuroRack 6HP Daisy Seed MCU PCB. Please Note: At the time of writing this has shown to be able to power up and nothing more. None of the IO or audio functions have been tested yet! I'll update this post once I have some test applications to show … Continue reading EuroRack 6HP Daisy Seed MCU PCB Build Guide →