Found a nice way to display all of the faders values. The middle fader switches the display depending if it’s on the left or on the right!

The front panel is soll covered in protective foil, the final product should look a little sleeker :tealheart:

#synthDIY #midi #arduino

Tried that system with the future owner yesterday. Unfortunately the slight click that the switcher makes transitioning from a mute channel to an active one is unacceptable.. 😔

Not sure if I can make a true- or a relay- bypass switch that is absolutely clickless. I'm starting to look into the JFET-based buffered bypass — the system that's used in Boss & Ibanez pedals.

#ClicksAndPopsAreTheBaneOfMyExistense #synthdiy #diyelectronics #theWorkshop #diyaudio

Another synth module is in the making. This time it's a quantize and hold module with controls for scale and transposing pitch. Besides a continuous mode the output can also be updated by a trigger. It's based on an Arduino and some DAC, the software will be open-source. It gets more digital as I have a lot of classic analog circuits already covered.
#eurorack #synth #synthdiy #synthesizer #arduino #quantizer

I went to take a picture of the back of the #ObliquePalette prototype 0.5.5 and it came out like this. So I gotta share.

The front, in the second image shows the inputs & outputs. Analog knobs, 3.5mm jacks for Eurorack, pin headers for Arduino (or other electronics) & servos.

(It's for turning computers into machines for making art, fucking around, and falling in love. You talk with it using the extremely powerful graphical language, #plugdata.)
#modularsynt #synthdiy #eurorack #computerart #

I had good fun making this simple MIDI synthesizer with Teensy: SoundFont, Additive, Subtractive and FM synthesis all in one. 🎹

#synthdiy #teensy #midi

https://codeberg.org/zabuxx/Fontsy

New article! Wrote up a recent improvised build of a stereo-switcher controlled using a remote.

https://gnd.buzz/blog/switcher-w-remote

#electronics #theWorkshop #synthdiy #pedalsandeffects

Making a Simple Eurorack Mixer

https://tilvids.com/w/nApbwwTgqNGMxqijgz45kH

Jam på synthträff

https://makertube.net/w/7QGxCmic4wZDGbz1beKjYr

Eurorack Test Power Supply
#eurorack #synthdiy

I wonder if this thing can handle drilling holes for modular synth front panels? ​:neobot_thinking:​ A proper drill press might be better, but is it as cool as this largely 3d printed concrete filled contraption?
https://www.youtube.com/watch?v=DIL-pU82dOs

#eurorack #modularsynth #synthdiy

My next module is on the horizon: a clock divider based on the 4024 CMOS binary counter to accompany my sequencer. It's an utility module to break down a given clock signal to drive another sequencer, drums or similar. More on this soon!
#eurorack #synthdiy #synth #clockdivider #clock #cmos

I think the best one so far, starting to get somewhere with this perhaps...

The natural semiconductors used in this track are pieces from the same lump of solid chalcopyrite fossicked from minewaste at East Wheal Maid, Gwennap. Three shafts on a hilltop that overlook the "Wheal Maid Valley", site of the Great Consolidated Mines. The rubble falling down from the steep sides are full of mineralisation typical of these mines, pyrite, chalcopyrite, sphalerite and galena - but also a lot of dark siderite. The names of the shafts and the lodes here have been forgotten to history.

New electronics have been built to provide enveloped gates to free up the ones I've been using on the volca modulars meaning the synth can be used more simply, or even standalone now - preparation for the #OrganisedAtoms workshop so we could test minerals we collected with family groups, to provide sonification of different crystals (this took over completely from the cardboard synths we used previously).

https://soundcloud.com/cornish_semiconductor/from-a-forgotten-lode

https://archive.org/details/cornish-semiconductor-forgotten-lode

#synthdiy #mining #minerals

3 Sawtooth VCO's and a 2x3 channel mixer underneath a single front panel. With the outputs connected to the normals of the mixer inputs. #sdiy #eurorack #synthdiy

The blog post on my 8-step, chainable Eurorack sequencer is finally published. Find all relevant info and the Arduino based software here: https://polykit.rocks/sequencer
#eurorack #sequencer #arduino #synthdiy #synth

3rd time I soldered V1 of the board, and it's now working OK. I realized the problems with the RGB LEDs were not caused by faulty hardware, but rather wonky DMA transfer timing. In the process, I did find some hardware issues which were not breaking things (yet), such as missing caps next to each LED and wrong logic voltage being applied on the inputs. The MIDI optocoupler was also pumping 5V into the MCU, which is not supposed to be safe. Fixed all of that, and I will hopefully come up with a second version of the PCB in the coming weeks. I will also most likely replace the buttons with something a little bit more reliable. These E-Switches are really not great. But before ordering any boards from China, I will work on making the software better. The OS support for the microsd card is also still quite broken. #synthdiy #eurorack #rustembedded

fsck yeah. #eurorack #synthdiy

I've posted an update to my MiniDexed SSD1306 based IO board for the Raspberry Pi.

https://diyelectromusic.com/2025/09/27/minidexed-raspberry-pi-io-board-v2-design/

#RaspberryPi #MiniDexed #SynthDIY #MIDI

New track made with some samples of galena from Wheal Clinton in Flushing, this was a small mine that was only worked for a couple of years. It was closed in 1858 after being flooded and not considered economically viable. Occasional lumps of mineralised rock can still be found here and there on the beach - where they presumably fell from the shaft now situated in someone's garden overlooking the Fal estuary.

One galena specimen, used here for triangle wave shaping, is a bright well crystallised inclusion in very pale siderite. It acts very similarly to a silicon diode (with variable voltage drops). The other, used here in the square wave fm voice is more grainy, and is mixed with pyrite and sphalerite. Composite intergrown natural semiconductors are a whole other world of possibilities yet to be explored.

https://soundcloud.com/cornish_semiconductor/flooded-crosscut-galena-experiments

https://archive.org/details/cornish-semiconductor-flooded-crosscut

#SynthDIY #DIYSemiconductors #Fossicking #Cornwall

I've just spotted the kino-key from @kazbo_ (Kinoshita labs)

This is a completely open source 25-key MIDI controller, including PCB, code and 3D print design for keys.

It uses a XIAO RP2040 and it looks great :)

https://github.com/kinoshita-lab/kino-key

#MIDI #SynthDIY #XIAO