# Arduino Nano Midi?

**URL:** <https://lookmumnocomputer.discourse.group/t/arduino-nano-midi/4582>\
**Category:** DIY STUFF\
**Created:** [February 1, 2022, 1:22pm UTC](https://lookmumnocomputer.discourse.group/t/arduino-nano-midi/4582 "2022-02-01T13:22:07Z")\
**Posts on this page:** 1\
**Showing post:** 30

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**Author:** ![Bpbby](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bpbby/32/15259_2.png) [@Bpbby](https://lookmumnocomputer.discourse.group/u/Bpbby)\
**Post date:** [February 12, 2022, 9:36pm UTC](https://lookmumnocomputer.discourse.group/t/arduino-nano-midi/4582/30 "2022-02-12T21:36:09Z")

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Many many thanks for posting this (and of course for sharing it). I was making the MIDI to CV from Elkayem but nothing was working.

> **[GitHub - elkayem/midi2cv: Arduino-based MIDI to CV converter](https://github.com/elkayem/midi2cv)**
>
> Arduino-based MIDI to CV converter. Contribute to elkayem/midi2cv development by creating an account on GitHub.

Then, funny part, i realised that the LEDs were flashing at the correct tempo or gates every time i was switching it off.  
What made it go from not working to “working as expected” is the pullup resistor. 500r didn’t work for me. I am using 5k and it works great. (Also works without any btw)  
Posting this in case someone follows Elkayem schematic and ran in some issues.  
Working with keystep37 and a cheap arduino. 😉

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