Category: PCB Design

Posts related to designing, building, and testing printed circuit boards.

EuroRack Test Power Supply PCB Design

I've a few EuroRack power supplies now, and most of them have a few things in common: Require an AC to AC "wall-wart" (typically 12VAC or above). Use diodes for half-wave rectifying and a large bank of capacitors for smoothing the resulting output. Use a 7912 and 7812 for -12V and +12V supply, and some … Continue reading EuroRack Test Power Supply PCB Design →

Multi-Mode MIDI Step Sequencer – CDR Format – Part 3

This post revisits the "CDR format" (CD Rack Format) panel version of my Multi-Mode MIDI Step Sequencer. Part 1 detailed the build and testing of the panel. Part 2 updated and enhanced the Multi-Mode MIDI Step Sequencer code to run on the panel. Part 3 (this post) details the design of a panel using a … Continue reading Multi-Mode MIDI Step Sequencer – CDR Format – Part 3 →

EuroRack 6HP MCU Pots and Jacks PCB Build Guide

Here are the build notes for my EuroRack 6HP MCU Pots and Jacks PCB designed to be used with my EuroRack 6HP MCU Experimenter Module. 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 … Continue reading EuroRack 6HP MCU Pots and Jacks PCB Build Guide →

EuroRack 6HP MCU Pots and Jacks PCB Design

This is an add-on for my EuroRack 6HP MCU Experimenter Module to support several different configurations of potentiometers and jack sockets. EuroRack 6HP MCU Pots and Jacks 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 are new … Continue reading EuroRack 6HP MCU Pots and Jacks PCB Design →

EuroRack 6HP MCU Experimenter Module PCB Build Guide

Here are the build notes for my EuroRack 6HP MCU Experimenter Module. Part 1: EuroRack 6HP MCU Experimenter Module PCB Design Part 2: EuroRack 6HP MCU Experimenter Module PCB Build Guide Part 3: EuroRack 6HP MCU Experimenter Module Usage Notes EuroRack 6HP MCU Pots and Jacks PCB Design and Build Guide Warning! I strongly recommend using old or second hand … Continue reading EuroRack 6HP MCU Experimenter Module PCB Build Guide →

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 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 →

EuroRack 6HP MCU Experimenter Module

I've been following the work of HAGIWO for some time and always been really impressed with the breadth and range of modules they produce. I have noticed some patterns in their microcontroller based modules and so wondered if it was possible to build some kind of generic template PCB that would allow me to do … Continue reading EuroRack 6HP MCU Experimenter Module →

Nano MIDI Proto PCB Build Guide

Here are the build notes for my Nano MIDI Proto 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 MIDI Proto PCB (GitHub link below) 6N138 … Continue reading Nano MIDI Proto PCB Build Guide →