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 →

MiniDexed 3D Printed Cases

I've used my modular Raspberry Pi 2,3,4 A+/B+ Synth Case to create a variant for the two versions of my RPi Zero MiniDexed IO Board PCB Design. There is also now a version for my MiniDexed Raspberry Pi IO Board V2 Design too. The OpenSCAD file should allow for a range of variants to be produced, but I've … Continue reading MiniDexed 3D Printed Cases →

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 →

MiniDexed Quad DAC PCB Build Guide

Here are the build notes for the MiniDexed Quad DAC 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 single board computers, see the Getting Started pages. Bill of Materials MiniDexed Quad DAC PCB (GitHub link … Continue reading MiniDexed Quad DAC PCB Build Guide →

MiniDexed Quad DAC PCB Design

This is the design for a MiniDexed IO board for the Raspberry Pi 5 that supports four GY-PCM5102 modules as described here: RPi 5 Quad Stereo Sound with PCM5102A. Build guide here: MiniDexed Quad DAC PCB Build Guide. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any … Continue reading MiniDexed Quad DAC PCB Design →

RPi 5 Quad Stereo Sound with PCM5102A

Inspired by the news that HiFiBerry are releasing an 8-channel DAC board for the Raspberry Pi 5, but slightly disappointed they've sold out of their beta-test programme, coupled with the news that Rene has added 4-channel I2S support for circle, and seeing that the HiFiBerry dac8x is essentially four PCM5102A modules and a high quality … Continue reading RPi 5 Quad Stereo Sound with PCM5102A →

Selecting Microcontrollers for Music

I was browsing some of the newer ATtiny chips the other day and started to make a note of some of their properties and it made me realise I actually have quite a few different microcontrollers at my disposal and many more I could be having a look at. But having committed to not attempting … Continue reading Selecting Microcontrollers for Music →

CD Rack Format Zynthian – Part 2

I've recently updated my "CD Rack" box to a horizontal black box, still shaped for my "CD Rack" format modules. But as it is black, and I've a black TX816, I've rebuilt my CD Rack format Zynthian with a black, PCB front panel too. Original Design Notes: CD Rack Format Zynthian. Warning! I strongly recommend using … Continue reading CD Rack Format Zynthian – Part 2 →

A DX7 USB Dongle

The amazing Rene Stange added USB Gadget (i.e. device) support to the Circle bare metal Raspberry Pi environment a while ago so I've now incorporated that into MiniDexed. This allows MiniDexed to be used as a USB device - i.e. it can just be plugged into a PC and used via USB MIDI directly, as … Continue reading A DX7 USB Dongle →