midi rolls – PCB

pcbs have landed


and everything seems to be ok


to be continued…


Leave a comment

Filed under Uncategorized

Rolls Midi Rework

I spent quite a long time to see if the coordinates of the various elements were right as I didn’t have the orignal datas. But now it is time to see if there’s no poopoo. The all thing will be driven by the cheap-ass STM32f030K6 (less than 1 euros).

At that price, sorry Atmel, but I think I’ll switch for it instead of the atmega 328. There’re drawbacks (no DIP package and 3V3 which may need to be elevated to 5V with additional logic for some applications). Nonetheless, it remains an interesting alternative, for a cheaper price with better performances (although it doesn’t really make a change in here)

I managed to put input to all the vacant pins to allow the board to be used for other MIDI purposes. Mainly to not let the reaming boards unbuilt.


I also finally updated my old Kicad (2013) version. The new features are really  appreciable. The search function in EEschema is better and quicker. The 3D view is largely better as well. I did have many complains to make in the first place though.

Leave a comment

Filed under Uncategorized

Wintermute == Success;

The wintermute project was quite a success, all the remaing boards have been sold. And the resulting builts are all fonctional. I mus also make some shameless add for Elecrow PCB manufacturing. That was the second time I ordered things form them and everything went smoothly.

There were some stuff I didn’t really like on the board, the lofi speaker has a very poor bandwith for such application, and the battery holder took to much space. Both costed a lot and wasted boardspace.

I decided to take them off and add a lofi PT2399 delay instead, and this time with the glorious SMD parts (0805). For sure it’s less diy-friendly but SMD isn’t that hard, come one…


I’ve no ideas for the price yet and this time only the board will be available let’s first see if there’re interest in it. If you’d like one, send me an email (in the about section). Depending on that, I may launch a run.

And it is very strange to meet a American for New Mexico waiting for the train in my town, I felt like in a K. Dick book, did it really happen ?

Leave a comment

Filed under Uncategorized

Before the end (of the year)

here are three movies that could save you last hour of 2016. All are in black and white and are more or less trippy on their own rights. They are quite obscure and weird which make them even better.

Tetsuo (1989)



The story of a man who attracs all things metal because of a previous action. The plot isn’t more developped that than but the rest is something of strange beauty. There’s some quite disturbing images and the black and white makes it even more sureal. The film is full of ideas and strange things. It strangely reminded me of some early Godflesh albums, someting darker, intense and without any kind of concessions.

A Field In England (2013)



A bit less dark but not less psychedelic. Deserters of the english civil war find themself at the mercy of somekind of shaman and magic mushrooms. A man who run like a dog in a leash isn’t something that you’re accustomed to see and may leave you a bit chocked. Plus, the cinematography and images and wonderful with some very clever tricks.

Hard to be god (2014)


Maybe the more cryptic of the three. It is in Russian, it last 3hours, and in black and white. For most pepole only one of those reasons suffice to leave the room. It’s hard to follow and can make you feel a bit nauseous as the entire film is set in rain, mudd and shit. Add to that, a army of morrons that the protagonist must live with to save the little he has to save. However, I don’t know why, I watched it maybe because of the beautiful work produced, the imagery and the picture made of a decaying world which doesn’t want to evolve.

Leave a comment

Filed under Uncategorized

WinterMute(6) – READY

the project is finished, the reamining boards are for sell with some components.

Leave a comment

Filed under Uncategorized

WinterMute(5) – protoboard


The thing is almost finish, it still misses some components though. The good new is :

img_20161212_140512 img_20161212_140606There’s sound at the output !

I need a good camera but I hope we can still see what’s going on…

Leave a comment

Filed under Uncategorized

Wintermute(4) – PCB


PCB have landed. Still some component to receive and order.

Leave a comment

Filed under Uncategorized

midi controller – old style

I’ve been asked to do something about an old Rolls MP80 midi switcher. The idea is to send midi note off/on to trigger samples into Ableton (which allows midi assignations).

It appears that everything was done with digital logic (no microcontrollers). img_20161117_121857img_20161117_121813

The fact that the board can be removed made the design of a new pcb doable and cheap. The new PCB is smaller and with less components. The new board will microcontroller powered, it’ll be easier to modify the code and reprogram the thing to do many other midi related thing with it.

Leave a comment

Filed under Uncategorized

Wintermute noise machine(3)

I’m about to order a batch of pcb for the wintermute project. I found very refreshing to work on things that don’t need CV, bipolar power supply, and writting code.


I’ve ideas for offering somekind of Workshop in the blackhole of a city I’m living in. I think that kind of noise thing is a great canditate for initiating poeple to electronics that make sound.

I’ll certainly have more PCBs that I really need, the remaining ones would be for sale, let me know if you’re interested.

Note that for simplicity reasons, the PCB version won’t have the piezzo. The idea of the pcb is to contain everything in a small format (keep price low).

Leave a comment

Filed under Uncategorized

Wintermute Noise machine(2)


The noise is done and showing off. Here some samples of it :

Although I had doubts about the all thing, now I consider it as a very nice explorary tool. The on-board delay could also be a nice feature to fatten up the sound (a small PT2399 could be cheap enough).

Leave a comment

Filed under Uncategorized