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 →

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 →

3.3V Serial MIDI THRU

I have a need to route MIDI to several Raspberry Pi boards at the same time, so I've hacked together a variant of my MIDI Matrix Patch Bay to give me a 3.3V level serial MIDI THRU interface. I've used it for my 8-way Raspberry Pi V1 MiniDexed in the following video. https://makertube.net/w/g8rw9XtF4Z377dsANRu5Yr Warning! I strongly … Continue reading 3.3V Serial MIDI THRU →

Simple Square Wave Oscillator PCB Build Guide

Here are the build notes for my Simple Square Wave Oscillator PCB. https://youtu.be/1vpDoPMgUWA 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 electronics, see the Getting Started pages. Bill of Materials Oscillator components: Simple Square Wave Oscillator … Continue reading Simple Square Wave Oscillator PCB Build Guide →

Simple Square Wave Oscillator PCB Design

I've now done several posts inspired by the Oskitone Poly 555, and I do plan to build one myself one day (I can't get a kit as they don't deliver to the UK, but I've had a PCB manufactured - watch this space!). This PCB is essentially the oscillator part of the Poly 555 in … Continue reading Simple Square Wave Oscillator PCB Design →

Atari Punk Console PCB Build Guide

Here are the build notes for my Atari Punk Console PCB Design. https://youtu.be/OP9pHC1lsGw 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 electronics, see the Getting Started pages. Bill of Materials Atari Punk Console PCB (GitHub link below) … Continue reading Atari Punk Console PCB Build Guide →

Atari Punk Console PCB Design

The Atari Punk Console is a bit of a "Hello World" build for DIY analog synthesizer fans. I looked up the circuit and read a little about how they work for my 556 Timer Light Theremin project I found on ebay, but the main background can be found in the following: Atari Punk Console on sdiy … Continue reading Atari Punk Console PCB Design →

16 Tone Generator MiniDexed

I've been looking into how it might be possible to get 16 tone generators running on MiniDexed, essentially giving the equivalent of a whole DX7 on each of the 16 MIDI channels. This post looks at some of the options I've looked at: Simply using MIDI THRU to connect two independent MiniDexeds with 8 TG … Continue reading 16 Tone Generator MiniDexed →

RPi Dual MiniDexed PCB – Part 2

Here are the build notes for the RPi Dual MiniDexed PCB Design. https://youtu.be/WnxW_eS3AZY 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 tutorials for the main concepts used in this project: MiniDexed Raspberry Pi IO Board If you are … Continue reading RPi Dual MiniDexed PCB – Part 2 →