[Prototype] Arduino UNO R4 synthesizer : modular synth simple VCO

Modular synthesizer VCO. using Arduino uno r4 for technical verification.
Supports V/oct and audio output via built-in DAC.
Since this is a verification circuit, it is not recommended to make a module with this circuit as it is.
working documents ( schematics & 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
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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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[@beatrute2677]

Those 3.5mm breadboard breakouts look handy.

[@bastenhoor6902]

I would really like to get my hands on a Flint R4 (Europe). It is the perfect size for my projects, which can replace the Nano boards. I don't know the price, but I could be reseller in Europe (Netherlands)

[@mateuspreis]

Hi HAGIWO! your channel and projects are amazing... but if you could answer, where do we start? oscillators?

[@aliotard]

I didn't know the Arduino R4 had a built-in DAC! that opens a lot of musical possibilities :)

[@olitroniklab]

sounds good, good job, I'm doing stuff with the R4 too,😍

[@mundoinmundo5463]

Sounds great. Thank you for your dedication

[@redactedradio_]

nice dude!

[@MrGuillermofrancisco]

Thanks again my hero!!!