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