# Not Midimuso CV-20

**URL:** <https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711>\
**Category:** DIY STUFF\
**Created:** [November 21, 2023, 8:32pm UTC](https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711 "2023-11-21T20:32:12Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![craigyb](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/craigyb/32/21602_2.png) [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\
**Post date:** [November 21, 2023, 8:32pm UTC](https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711/1 "2023-11-21T20:32:12Z")

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Started this little project last night, 20 CV and 8 trigger outputs, 16 CVs assignable to CC numbers or NRPN, triggers assignable to notes. 4 fixed CVs for pitchbend, modulation, channel aftertouch and breath control. Also can be used for a mono or poly MIDI to CV converter, for each note you lose a pair of assignable CVs and a trigger to the MIDI to CV upto a max of 8 notes.

 ![1000010944](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/d/a/da300ea29bcec0db9c754cd4fbca19afb4bc7b7f.jpeg)

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**Author:** ![craigyb](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/craigyb/32/21602_2.png) [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\
**Post date:** [November 22, 2023, 12:52pm UTC](https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711/2 "2023-11-22T12:52:01Z")

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A bit of coding today, basically I dumped the code from my old 6 note poly 16bit MIDI to CV converter onto the board and hacked it to use the PWM outputs and shiftregisters for triggers. Scaled the voltages and now it plays from 0-10v accurately enough to be used for pitch. Gates are 0-10v output. Now it’s 8 note poly and I will add the option to reduce the poly count. A few more bits and pieces to code up and fix the menus and I will start work on the assigner parts for individual CC or NRPN outputs.

 ![1000010952](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/0/4/047e72fd6bd54cca2c0212d931fbfd0485317b19.jpeg)

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**Author:** ![craigyb](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/craigyb/32/21602_2.png) [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\
**Post date:** [December 3, 2023, 8:10pm UTC](https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711/3 "2023-12-03T20:10:47Z")

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Sunday evening MIDI to CV converter progress. Chasing down display issues, dodging missiles and buying the wife a new car…

[![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/0/b/0b98692c70f7e0dc91525c17750ee1aa93136cea.jpeg "20 channel MIDI to CV converter (max 8 note poly)") ](https://www.youtube.com/watch?v=d6duKb65Ffk)

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**Author:** ![craigyb](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/craigyb/32/21602_2.png) [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\
**Post date:** [December 7, 2023, 4:03pm UTC](https://lookmumnocomputer.discourse.group/t/not-midimuso-cv-20/6711/4 "2023-12-07T16:03:16Z")

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Ok it’s just about ready for prime time. I’m happy with the functionality and offerings. MIDI to CV converter with 20 channels of CV, 8 gates and 4 clock outputs and a reset.

USB, USBhost and DIN midi inputs.

Can be split from 0-8 note polyphonic, unison mode with top, bottom and last note priority, assignable midi channel. When less than 8 notes are in the poly group the remaining pairs of CVs can be used for CC or NRPN outputs from 0-5v or 0-10v with a max resolution of 1024 steps for NRPN. They can also be assigned their own MIDI channel individually. The free gate outputs can be assigned a separate midi channel group and individual note numbers between 36 and 60 and used as triggers for drums etc. 4 dedicated CV outputs are available on the poly channel for pitchbend, modulation, channel aftertouch and breath control ( for you wind guys ).

Four clock outputs for divide by 1, 2, 4 & 8 outputs are available and a reset.

All details are available on my GitHub page.

[https://github.com/craigyjp/14bit-MIDI-to-CV](https://github.com/craigyjp/14bit-MIDI-to-CV?fbclid=IwAR2pNW7kdCXAZUOLDilcd1uqF56_Yfgg5jjVsNHNO8yvBgkQ-y1piMWFjIg)

 ![1000011129](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/5/a/5a7b9bce85ca66a3af263c4a5831ede18b0a30c5.jpeg)
