Categorized list of repositories

Analog Output Eurorack modules and panels

• MFOS-SVF Eurorack adaptation of the MFOS "Oldie But Goody" state variable filter

Analog Output Kosmo modules and panels

• 8StepSequencer 8 step control voltage sequencer based on LMNC design, with a number of modifications
• arpenvfol ARP 2600 based envelope follower
• arrm Active Real Ring Modulator by Ken Stone (CGS)
• attenuverters Attenuverters with summing
• audiomixer Audio mixer synth module
• clock Clock synth module
• dc_mixer 3 input DC mixer Kosmo format synth module
• dso138 Oscilloscope module from Jye Tech DSO138
• dvca MFOS dual VCA in Kosmo format
• exped Expression pedal interface synth module
• ffbmod YuSynth Fixed Filter Bank, retuned, with board mounted sliders and jacks
• frontpanels Front panels for various synth modules
• GateGrinder Synth module to generate clocks and act on triggers and gates
• gearseq Voltage controlled trigger sequencer with gap, Euclidean, ADC, and random algorithms
• herovco Full featured 3340 based VCO
• irinput Modification of Barton IR Input
• joystick Joystick CV controller with adjustable ranges and offsets
• kdlfo Shape variable dual LFO
• megamodule Toy voice changing megaphone bent into synth module
• MCVI Simple MIDI to CV synth module
• MFOS_VC_LFO Auxiliary board and Kosmo format front panel for MFOS VC LFO, supplying sync and power header
• mikrokosmosii Piezo element amplifier inspired by Music Thing Modular's Mikrophonie (supersedes earlier Mikrokosmos version)
• mtmreverb Spring and "brick" reverb driver
• mults Dual buffered multiples
• NoiseBells Percussion/drone module based on Hackaday CMOS Noise article
• pmf Pole mixing multimode filter
• precadsr Kassutronics Precision ADSR with retriggering and looping modifications
• QuantizerModule Dual CV quantizer with choice of ~72 scales
• sidekickvco Subsidiary 3340 based VCO
• StereoOutKosmo Stereo output synthesizer module in Kosmo format
• subosc Suboscillator by Carmelo Azarello
• vcapf Low frequency voltage controlled all pass filter
• voltproc Voltage processor with summers and lag
• WaveShaper Barton 4046 wave shaper modified to add voltage control and variable gain
• yash Sample and Hold by René Schmitz

Other synth related hardware

• busboard Eurorack/Kosmo Busboards
• cabletester Arduino 10/16 pin Eurorack IDC Power Cable Tester
• dac_ino Arduino CV/Gate I/O shield and its software library
• midisnoop For looking at incoming MIDI messages
• powerbreakout Euro/Kosmo power breakout
• Protoboard Eurorack/Kosmo powered prototyping boards
• ribcon Interface and software for resistive ribbon controller
• ww_supply ±12V power supply for synthesizers

Other hardware

• opamptester Stoopid op amp tester

KiCad templates, libraries, and software

• aoKicad KiCad symbol and footprint libraries I use all the time
• kdocgen Python script to generate outputs using the KiCad CLI
• kicadfootprints Custom KiCad footprints. Repository superseded by aoKicad.
• kicadsymbols Various symbols I've created or adapted. Repository superseded by aoKicad.
• Kosmo_panel KiCad footprint library for Kosmo panel elements
• Kosmo_panel_templates KiCad templates for Kosmo panel projects
• bomscripts Plugins for BOMs

Music and synth related software

• kmg_csv2json Python script to generate kosmodulargrid entries from CSV file
• playoeis Python script to play an OEIS sequence as a MIDI sequence

Mathematical recreations

• nclique Find maximal length sets of words each n letters long with no letters repeated
• ssoma Soma Cube puzzle solver

Python libraries

• oeislib Python library for OEIS (Online Encyclopedia of Integer Sequences)

Largely unmodified forks of misc repos

• breadboard-friends A collection of cute breakout boards riding solderless breadboards, mostly for analog audio works
• cvpal Cheap and cheerful 2-channel USB to CV/Gate interface
• Electrophone Guitar pickup module
• kosmodulargrid Site for Kosmo modules
• KosmoPulse Music Thing Modular Pulse Expander for the Turing Machine converted to Kosmo Format
• KosmoTuringMachine Music Thing Modular Turing Machine converted to Kosmo Format
• KosmoVolts Music Thing Modular Volts Expander for the Turing Machine converted to Kosmo Format
• midipal MIDI swiss army knife
• module_tester Test signal generator for Eurorack module
• mutable_eurorack MI Eurorack modules
• SimpleEQ SMD Eurorack EQ Module

(Temporarily?) abandoned projects

• 8dc CV to ADC Eurorack module, inspired by Look Mum No Computer's 123ADC
• Arpeggiator Kosmo format (Eurorack compatible) arpeggiator module
• drum6 Ridiculous bending and repurposing of First Act drum pad as Eurorack module and maybe controller

Gratuitous recursion

• holmesrichards Gratuitous recursion