si, it reminded me of mario world.
Next thing will be audio in/out.
[Need Help with SPI] Euxoloti for axoloti (Eurorack Module)
im getting more and more hooked 
paul
#16
audio in/out needed some modification. I will update the schematic in the upcoming days. Now it's running very sweet and I love is little board more and more. audio out ist eurorack compatible 10V p-t-p. audio in needs a dc-coupled input (10uF elko) to filter DC offset.
Tomorrow, I will post a sound example.
After all, I think, I will add some extension headers to add e.g. some shift reg. for a clock divider etc…
audio out from axoloti core (10V p-t-p) - sin example:
paul
#17
the euxoloti prototyp runs great. The code for the two mcp3208 needs some improvements.
Here are some pics and a quick sound demo
Patch: Ableton MIDI OUT -> MI CVPAL -> MI Braids (CSAW) -> EUXOLOTI -> Audiointerface
Sounddemo (wav, 96khz, 24bit)
thetechnobear
#18
Im surprised you didnt mount the axoloti connections to the front panel...
Id have thought the midi din/usb and SDcard could all still be very useful in a modular environment - no?
paul
#19
yes, this would be an other option and can be easily realized. If axoloti eagle files are online, I get the right measurements and print a new panel with axoloti connections on the panel.
First, I want to get the whole eurorack stuff (audio in/out, cvs) up and running. The MIDI/power pcb part should be mounted at the extension panel, but as johannes mentions that it would be better to use the original external power pcb for powering the axoloti instead of a 7805 circuit.
I'm doing the whole thing very cautious. I don't want to break my axoloti, because I only have one and to get a new one will take a long time 
debterminer
#20
Any news on this? Its a very interesting thing for me, as I am beginning in eurorack, and would love to be able to use my Axolotis with other CV enabled things :>
GaryInThailand
#21
Hi Paul. I'm new in the group (and my Core board hasn't arrived yet), so I'm catching up on what you've been doing. I'm also interested to integrate Axoloti with Eurorack. btw, I design some modules including this one coming from 4ms. http://www.4mspedals.com/p.php?p=709.
You've been quiet since August. Is the project active now? I know how these things can go.
Cheers.!
debterminer
#23
Or conversely if anyone else is working on such a thing. I would love a tried and tested schematic to put auxillary v/oct inputs and outputs, as well as auxillary audio inputs/outputs
paul
#24
hi and sorry.
Some news about euxoloti. The prototype is still working fine and I have only to design the PCB layouts.
I'm very busy at the last month because I'm helping refugees. So there is less time for other things. But I will try to clear the eagle schematic file and put it online till the end of January. So anyone can do the pcb layout.
Maybe it will be better to post this topic at muffwiggler forum, where many people with pcb design skills are.
debterminer
#25
that sounds fine, but also post any intriguing information here, or links to it please :>
paul
#26
I will link the muffwiggler thread to this thread and post any further news.
Last night, I did a pcb design. I will recheck the design and if there is no design error, I will order some pcbs.
Frontview:
Backview:
Some additional infos:
Any I/Os (pots, jacks etc.) will be on a separat PCB.
8x CV-INs (max. +/- 5V voltage input) (JP-CV)
8x Pots (JP POT)
2x Audio input (10ppV to line level) (JP5)
2x Audio output (line level to 10ppV) (JP5)
1x extension headers (JP4) to access Axoloti's pinouts or mount the Axoloti core to a separate frontplate.
optional
gate in/out
LEDs
paul
#33
I created a extra site for the euxoloti (schematic, pre order infos etc.): EUXOLOTI SITE
The whole project will be released as open source with CC- License.
I'm happy about your interest but please do not send me any PMs or post with your address etc.. A separat site with an order form will be online, if the PCBs are ready. This will be much easy for organization.
A CV out is not implemented at the moment. There are a extra header row to access every Axoloti pinout for more extensions (e.g. CV out, gate outs etc.)…