ESP32 S3 DevKit

Having played a bit with ESP32-S3 now, in the of the Waveshare Zero format boards, I'd quite like to have a version of the ESP32 WROOM Mozzi Experimenter PCB for the latest ESP32-S3 DevKitC board I've found. This is the introductory post that is my "notes to self" as I get to know the boards. … Continue reading ESP32 S3 DevKit →

ESP32-A1S Audio Kit

I've had this "audio development kit" based on the ESP32-A1S for some time, but haven't actually done anything with it so far. But I had a query about adding MIDI so dug it out for a quick look. It turns out it isn't actually as easy as it ought to be! Warning! I strongly recommend … Continue reading ESP32-A1S Audio Kit →

Using a Cheap 5V MIDI Interface at 3V3

I had a query about using one of the common Arduino MIDI Shields with an ESP32 and when I looked into it, this is where I got to. 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 … Continue reading Using a Cheap 5V MIDI Interface at 3V3 →

ESP32 WROOM Mozzi Experimenter PCB Build Guide

Here are the build notes for my ESP32 WROOM Mozzi Experimenter 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! If you are new to electronics and microcontrollers, see the Getting Started pages. Bill of Materials ESP32 WROOM Mozzi Experimenter PCB … Continue reading ESP32 WROOM Mozzi Experimenter PCB Build Guide →

ESP32 Simple MIDI Monitor

This project started as a bit of a test for my ESP32 WROOM Mozzi Experimenter PCB but ended up a little more functional, so I thought it worth writing up in its own right. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to … Continue reading ESP32 Simple MIDI Monitor →

ESP32 WROOM Mozzi Experimenter PCB Design

Before building my Educational DIY Synth Thing I was playing with the ESP32 WROOM dev boards I'd found and was thinking about doing some Mozzi experiments. This post started to document some of the things I'd found out about the boards, but never made it to a complete post. I've now gone back and finished off … Continue reading ESP32 WROOM Mozzi Experimenter PCB Design →

Educational DIY Synth Thing – Part 7

Ok, so this is yet another final, "final" part, but having produced my Raspberry Pi Pico MIDI Touch Keyboard PCB I wanted to show how it could be hooked up to my Educational DIY Synth Thing. This includes a variant of the accessories panel that supports a connector for the Pico touch keyboard. Part 1 - … Continue reading Educational DIY Synth Thing – Part 7 →

Educational DIY Synth Thing – Part 6

My Educational DIY Synth Thing is meant to be a platform for experimenting and one easy way to get started on that is with the addition of some off-the-shelf audio and synthesizer-oriented electronics kits. Part 1 - This introduction and high-level design principles. Part 2 - Detailed design of an ESP32 based PCB. PCB Design PCB … Continue reading Educational DIY Synth Thing – Part 6 →

Educational DIY Synth Thing – Part 5

In this final part of the series I present some simple configurations to show how the thing might be used. Part 1 - This introduction and high-level design principles. Part 2 - Detailed design of an ESP32 based PCB. PCB Design PCB Build Part 3 - Software design. Part 4 - Mechanical assembly and final … Continue reading Educational DIY Synth Thing – Part 5 →

Educational DIY Synth Thing – Part 4

In the first part I described the concept and basic design parameters I was looking for and then in Part 2 I looked at the detailed electronic design, and in Part 3 at the code, for a board based on the ESP32 WROOM module I have. In this part I look into some additional mechanical … Continue reading Educational DIY Synth Thing – Part 4 →