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 Forum index » DIY Hardware and Software » Musical Interfaces
digital logic to volts/octave
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oolfur



Joined: Oct 08, 2015
Posts: 12
Location: NY

PostPosted: Wed Nov 04, 2015 9:09 pm    Post subject: digital logic to volts/octave Reply with quote  Mark this post and the followings unread

hello board!

after looking at ray wilson's single buss keyboard schematics, I put together a quick idea for a digitally controlled V/Octave interface.

I have a lot of standalone capacitive touch sensors that output 5v logic+trigger/gate information, and i'd like to build a keyboard out of them. alternatively, i'd like to be able to connect the logic output pins of my arduino to this module to control a VCO.

Posted Image, might have been reduced in size. Click Image to view fullscreen.

i dont intend to breadboard or solder this thing p2p, but i'd love to hear your thoughts on the design - i'm not really sure how the constant current source voltage divider works, plus maybe there is a better way of making a music easel style octave offset switch.

maybe it's all just random spaghetti - but any thoughts would be greatly appreciated! i'm planning on sending the design to seeedstudio for fabrication after a little more research...and if it seems to work well, i'll share the board design of course!

many thanks!
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