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# NuEVI
A project by wind controller enthusiasts wanting to save the endangered Electronic Valve Instrument.
Follow the project at https://hackaday.io/project/25756-diy-evi-style-windcontroller
## Building NuEVI
NuEVI is easiest to build using the Arduino IDE. You will also need to download and install
[Teensyduino](https://www.pjrc.com/teensy/td_download.html) to build for and upload to the Teensy.
### Libraries
A few libraries need to be added that are not part of the default Arduino install. These can be
added directly via the Library Manager in the Arduino IDE:
* Adafruit MPR121
* Adafruit GFX
* Adafruit SSD1306 (version 1.2.9 or above)
* NuEVI also includes on the [Filters](https://github.com/JonHub/Filters) library by Jonathan Driscoll, but that is no longer an external dependency.
### Compile options
Open NuEVI.ino in the Arduino IDE. Under "Tools -> Board", select "Teensy 3.2 / 3.1". Then set
"Tools -> USB Type" to "MIDI".
### Building and uploading
Connect the NuEVI via USB to your computer, open the Teensy application and make sure the "Auto"
option is selected (the green round icon). In Arduino IDE, select "Sketch -> Verify/Compile" and
once that is complete press the reset button on the Teensy chip (you have to remove the top cover
on the NuEVI to access this). Upon resetting, it should upload the new firmware onto the NuEVI.
After uploading new firmware, you may need to reset the config memory of the NuEVI. To do this, press
and hold the MENU and ENTER buttons while turning on the NuEVI. Note that this resets all sensor calibrations too. For new versions this should not be neccessary, as value and version checks are in place.
# xEVI
Hacked-up version of nuEVI (https://github.com/Trasselfrisyr/NuEVI)
Works with the teensy 4.0/4.1; different control layout; various other features and additions
Will update with more complete information once I get the prototype to something nice
## Building xEVI
Arduino project: I use platformIO; Arduino IDE would likely work too.
### Libraries
A few libraries need to be added that are not part of the default Arduino install. These can be
added directly via the Library Manager in the Arduino IDE:
* Adafruit MPR121
* Adafruit GFX
* Adafruit SSD1306 (version 1.2.9 or above)
* xEVI also includes on the [Filters](https://github.com/JonHub/Filters) library by Jonathan Driscoll, but that is no longer an external dependency.