[ $9 ] DIY eurorack modular synth CHORD VCO v2 with Seeed XIAO RP2040 | Raspberry pie pico

My 61th original eurorack modular synth DIY projects.
RP2040 based 5 polyphonic CHORD VCO , easy to play chord progression.
Built-in quantizer and autoharmonics.
working documents ( schematics & source code )
note.com/solde...
Please support me to continue projects.
In patreon you will find content about my background , technical information and CAD data.
/ hagiwo
Seeed XIAO RP2040 by seeed studio.
www.seeedstudi...
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Repository of HAGIWO's DIY Modular Synth
note.com/solde...
See Instagram and Twitter for the development status of my next module.
Instagram
/ hagiwo_1
Twitter
/ hagiwo1
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[@TechRedstone]

got me cryin in the club fr

[@n9jcvyellow]

I just received an email from Seeed Studio. This and another Seeed project by Hagiwo were featured! Nice Job Hagiwo!!! We love your projects ❤️

[@mackadresse6095]

Great Job and the Sound is cool! Great job you are very courageous to spend all this time in this build, but the result is amazing.

[@aliotard]

It sounds really good for such a simple digital oscillator!

[@jacobfukkui5581]

Hi! Im just starting in ths modular diy world. This project is just amazing and i really want to do it. I'm not really good at the schematics thing yet, so i would love to know if there is any way to get the BOM with the component list so i can better guide myself :) thanks for that amazing work

[@sylv9st9r]

Awesome work! Looking into making this, and was wondering if the diodes in the INVersion circuit are also BAT43? Thanks for your work!

[@HAGIWO]

Yes , INV diode is BAT43 too.

[@venus007e6]

Where did you get the metal covers for all the modules from? I want to get into diy modular synths, but i cant seem to find any company that sells customizable metal sheets.

[@granolakitti8521]

Heck i wan't to do stuff like this. Can i ask in what environment/language you are programming the RP2040?

[@n9jcvyellow]

Very cool. Thanks for sharing!

[@MrGuillermofrancisco]

Nice rebuild!!! Thanks my Hero!!!

[@nmidu]

the one and only, hero hero hero

[@godfreyofboullion8349]

👍🏻 Wunderbar

[@nmidu]

[@martingerken7094]

does this run on the RPi Pico without changes? I have on of them on stock...

[@HAGIWO]

RPi pico cannot be substituted. The reason is that there are not enough AD converters.

[@massimookissed1023]

That is very cool.

[@Kuba-0040]

ハギヲさん、 どんなperfboardはを使いていますか？(どんなメーカーは？)あの明るい色prefboardは丈夫なを見ってから、私はこれも使い欲しいです。

[@HAGIWO]

I am using prefboard sold in Japan. The material is paper epoxy. It is a standard prefboard, and similar products are sold all over the world. akizukidenshi.com/catalog/g/gP-00181/

[@Kuba-0040]

@@HAGIWO Thank You.

[@fedeboretti]

Hi! how can i add the harmonic correction in the v1 chord vco root program? i want to use it in arduino uno!

[@Moonscientistco.575]

Hallo hagiwo , nice work ,but you forgot to mark de value of the last cap in de the invertion circuit , can you put the value on the schematics ? (the one that goes to the grnd) thx ,the moonsclientist

[@HAGIWO]

Thanks for letting me know, I will fix the schematic.

[@papathrv1968]

so is it working with the regular pico too?

[@alex_s168_p]

nice i want one

[@SN-sg1cr]

中学2年生ですモジュラーシンセを自作してみたいのですが何から始めたらいいと思いますか？ はんだごてなどはそろってます

[@HAGIWO]

「達人と作る アナログシンセサイザー自作入門」という本を買って読むことをおすすめします。回路を学びながら、一台のモジュラーシンセを組み立てることができます。

[@SN-sg1cr]

@@HAGIWO 返信ありがとうございます この本面白そうですね今はお金がないので今度買ってみます！ MS22VCFKITをやってみたいと思ってます

[@dominicdit]

Almost plastic love at 2:20

[@mightymike1978]

親愛なるハギヲさん、お元気でお過ごしでしょうか？もう一度、あなたのノートを英語に翻訳して、公開してもいいですか？

[@HAGIWO]

Yes , no problem. Thanks!