Trinket USB MIDI Multi-Pot Mozzi Synthesis

As I mentioned last time, I wanted to get my Trinket handling USB MIDI (as a MIDI host) so I could plug my Korg minikeys directly into it. This wasn't quite as straight forward as I imagined it would be, but I got there in the end. In part 2 I start to look at … Continue reading Trinket USB MIDI Multi-Pot Mozzi Synthesis →

DIY MIDI Interfaces

This page is a mixture of beginner and advanced, DIY options covering MIDI in (receive), MIDI out (send), and USBMIDI to MIDI conversion for non-Arduino like microcontrollers. Here are some other pages of interest: Ready-Made MIDI Modules - a range of modules for "ready to go" MIDI IN and OUT for both 5V and 3V … Continue reading DIY MIDI Interfaces →

Arduino Top Octave Generator – Counter Experiments – Part 2

This is an incomplete experiment, but I wanted to test the principles from Arduino Top Octave Generator and Arduino Top Octave Generator – Counter Experiments in practice a little more. You may recall the basic idea here is to generate 12 tones using an Arduino and then use binary counters to divide them by 2 several … Continue reading Arduino Top Octave Generator – Counter Experiments – Part 2 →

Raspberry Pi Pico MIDI “pack” Interface

Having now done both MIDI In and MIDI Out for the Raspberry Pi Pico, and having seen the Adafruit MIDI Feather Wing and the design for "packs" ("shields" in Arduino speak or "wings" in Adafruit Feather speak) from Pimoroni, I wanted a convenient equivalent for my MIDI In and Out and this is the result. … Continue reading Raspberry Pi Pico MIDI “pack” Interface →

AD9833 MIDI Poly Signal Generator

Here are the details of how I added MIDI to my six-way AD9833 Poly Signal Generator shield building on the code that enabled the pots and switches from AD9833 Poly Signal Generator – Part 2. https://youtu.be/gnYn5I3gP9I Warning! I strongly recommend using an old or second hand equipment for your experiments. I am not responsible for any … Continue reading AD9833 MIDI Poly Signal Generator →

AD9833 Poly Signal Generator – Part 2

Following on from having built a six-way AD9833 Poly Signal Generator shield, its time to play with the pots and buttons. https://youtu.be/px4RQnccjmg Warning! I strongly recommend using an old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments or amplification! These are the key Arduino tutorials for … Continue reading AD9833 Poly Signal Generator – Part 2 →

AD9833 Poly Signal Generator

Something I wanted to do right from first getting hold of some AD9833 Signal Generators was to set several of them up on a single shield. This project shows how to drive four of them from an Arduino Uno. In part 2 I start to experiment with the controls. In the final part, I add MIDI. … Continue reading AD9833 Poly Signal Generator →

Arduino Tone Polyphony – Part 5

Ok, I thought I’d done with Arduino Polyphony for the time being, but something else came up today that I wanted to try. My post got a mention on the Hackaday blog and one of the comments has led me to a tweak that helps the tuning a little. https://youtu.be/lEaZhnjikfs Warning! I strongly recommend using old or … Continue reading Arduino Tone Polyphony – Part 5 →

Arduino Tone Polyphony – Part 4

In this final (for now) part of my Arduino Tone Polyphony project I'm returning to part 2 which was creating a stand-alone, full 12-note polyphonic tone keyboard with an Arduino Uno and committing it to an Arduino Shield using a proto-shield. Warning! I strongly recommend using old or second hand equipment for your experiments. I am … Continue reading Arduino Tone Polyphony – Part 4 →

Single Pin MIDI Channel Selector – Part 2

As I mentioned in the Single Pin MIDI Channel Selector it would be nice to use a "DIP switch" on a small circuit board to give me my MIDI channel selection switch. Here is a small board that can plug directly into an Arduino's headers. Warning! I strongly recommend using old or second hand equipment for … Continue reading Single Pin MIDI Channel Selector – Part 2 →