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 →

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 →

Arduino USB MIDI Mux Pot Controller

The other application I wanted for my Arduino USB MIDI Mux Step Sequencer is as a general purpose MIDI controller.  In this case with 16 potentiometers mapped to MIDI CC messages. This is building on the following previous projects: Arduino USB MIDI Mux Step Sequencer Arduino and USB MIDI “Bare Metal” Raspberry Pi Synth – Part … Continue reading Arduino USB MIDI Mux Pot Controller →

Arduino USB MIDI Mux Step Sequencer

This post revisits an older project - the Arduino MIDI Mux Step Sequencer.  Or more specifically, part 2 of that project that used an off-the-shelf 16-potentiometer shield for an Arduino Uno.  Except this time, I've paired it with the "upgrade" to my Arduino Uno to make it USB MIDI compliant. https://youtu.be/amagp7ANns4 Warning! I strongly recommend using … Continue reading Arduino USB MIDI Mux Step Sequencer →

Arduino Multi-Slider MIDI Controller – Part 3

This is an expansion of the multiplexer version of my Arduino Multi-Slider MIDI Controller from Part 2 to add a further 8 potentiometers. In a future project, I build a "shield" to make linking to the pots easier. Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for … Continue reading Arduino Multi-Slider MIDI Controller – Part 3 →

Arduino Multi-Slider MIDI Controller – Part 2

This is the multiplexer version of my Arduino Multi-Slider MIDI Controller. In part 3, I extend it to 16 potentiometers. 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 Arduino tutorials for the main concepts used in this … Continue reading Arduino Multi-Slider MIDI Controller – Part 2 →

Arduino MIDI Mux Step Sequencer – Part 2

By way of completing this initial look at multiplexing potentiometers, this is how I used a Sparkfun 16 port multiplexer in my Arduino MIDI Step Sequencer. https://youtu.be/MiPyJrPlmVs Warning! I strongly recommend using an old or second hand keyboard for your MIDI experiments.  I am not responsible for any damage to expensive instruments! These are the key Arduino … Continue reading Arduino MIDI Mux Step Sequencer – Part 2 →