MiniDexed Raspberry Pi IO Board V2 Build Guide

Here are the build notes for my MiniDexed Raspberry Pi IO Board V2 Design. The previous version can be found here: Version 1: MiniDexed Raspberry Pi IO Board. SSD1306 Version: MiniDexed Raspberry Pi IO Board – Part 2 HD44780 Version: MiniDexed Raspberry Pi IO Board – Part 3 Warning! I strongly recommend using old or second hand equipment for … Continue reading MiniDexed Raspberry Pi IO Board V2 Build Guide →

MiniDexed Raspberry Pi IO Board V2 Design

My two MiniDexed PCBs were some of the earliest ones I made and so I've wondered about revisiting them for a while now. This is a respin of the SSD1306 version of the IO board that is, hopefully, slightly nicer to build a case around! Here is the link to the original PCB: MiniDexed Raspberry … Continue reading MiniDexed Raspberry Pi IO Board V2 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 →

Arduino Euclidean Gate Sequencer – Part 4

In this posts I describe a version of the Arduino Euclidean Gate Sequencer that implements the same user interface and most of the features of HAGIWO's brilliant build. 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 … Continue reading Arduino Euclidean Gate Sequencer – Part 4 →

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 →

RPi Zero MiniDexed IO Board PCB Design

Having now found a way to use a Raspberry Pi Zero as a DX7 USB Dongle in a "headless" capacity I thought it would be useful to have a version of my MiniDexed Raspberry Pi IO Board suitable for use with the Zero. RPi Zero MiniDexed IO Board PCB Build Guide Warning! I strongly recommend using old … Continue reading RPi Zero MiniDexed IO Board PCB Design →

Arduino Guess the Frequency Game

This is a bit of an odd one, but I was asked to put something musically related together as a game to get in the spirit of the season, so I thought something along the lines of an Arduino adjustable tone generator with the aim being the player has to tune it by ear to … Continue reading Arduino Guess the Frequency Game →

Nano Audio Experimenter Sheild PCB Build Guide

Here are the build notes for my Nano Audio Experimenter Sheild 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 Arduino, see the Getting Started pages. Bill of Materials Nano Audio Experimenter Sheild PCB (GitHub link below) 1x … Continue reading Nano Audio Experimenter Sheild PCB Build Guide →

Nano Audio Experimenter Sheild PCB

This takes the Arduino Nano Mozzi Experimenter Shield PCB and swaps out three of the pots for the optional use of the following: MCP4725 DAC. SSD1306 display. IO links for an analog multiplexer. This is in addition to the remaining three potentiometers, the MIDI interface and the audio filter output. Warning! I strongly recommend using old … Continue reading Nano Audio Experimenter Sheild PCB →

XIAO SAMD21, Arduino and MIDI – Part 6

This post looks at a series of relative straight forward MIDI control projects using the Seeedstudio XIAO SAMD21 and the XIAO Expansion Board. The projects should work with either USB MIDI or serial MIDI via an external MIDI module. Other parts in this series: Part 1 - Introduction to the XIAO SAMD21 and some projects … Continue reading XIAO SAMD21, Arduino and MIDI – Part 6 →