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 →

Pico MIDI “Pack” PCB Build Guide

Here are the build notes for my Pico MIDI “Pack” 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! Bill of Materials PCB link (GitHub link below) 1x H11L1 optoisolator. 1x 1N914 or 1N4148 signal diode. 1x each of 10Ω, … Continue reading Pico MIDI “Pack” PCB Build Guide →

Pico MIDI “Pack” PCB Design

This is a PCB version of my Raspberry Pi Pico MIDI “pack” Interface - something I've been meaning to do for ages! Here is the Pico MIDI “Pack” PCB Build Guide. 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 … Continue reading Pico MIDI “Pack” PCB Design →

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 →

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 →

Educational DIY Synth Thing – Part 3

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 for a board based on the ESP32 WROOM module I have. In this part I go into detail about the code. Part 1 - This introduction and … Continue reading Educational DIY Synth Thing – Part 3 →

ESP32 WROOM Educational Modular Synth Thing PCB Build Guide

Here are the build notes for my ESP32 WROOM Educational Modular Synth Thing 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 microcontrollers, see the Getting Started pages. Bill of Materials ESP32 WROOM Educational Modular Synth … Continue reading ESP32 WROOM Educational Modular Synth Thing PCB Build Guide →

ESP32 WROOM Educational Modular Synth Thing PCB Design

For the context of this PCB design, see: Educational DIY Synth Thing. The build guide can be found here: ESP32 WROOM Educational Modular Synth Thing PCB Build Guide Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! The Circuit The key design decisions … Continue reading ESP32 WROOM Educational Modular Synth Thing PCB Design →

Educational DIY Synth Thing – Part 2

In the first part I described the concept and basic design parameters I was looking for. In this part I go into detail about how I'm going about implementing them with an ESP32 WROOM board. Part 1 - This introduction and high-level design principles. Part 2 - Detailed design of an ESP32 based PCB. PCB … Continue reading Educational DIY Synth Thing – Part 2 →