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Johan Berglund b80f9247a2 Added compile option to include a MPR121 board adress scanning function for troubleshooting (MENU button at startup). Changed the destination setup for bite and lever to be less confusing and more powerful (custom CCs now possible). The VIB CTL item in the VIBRATO menu is now removed, and in SETUP CTL menu you will find BITE CTL, BITE CC, LEVER CTL and LEVER CC. 
BITE CTL and LEVER CTL can both be set to any of these destinations:
	OFF - no destination active for this controller
	VIB - vibrato
	GLD - glide/portamento (defined by GLIDE MOD and GLIDE LMT settings)
	CC  - custom CC output (defined in GLIDE CC and LEVER CC settings)

Settings in GLIDE CC and LEVER CC are only used when corresponding control is set to CC in its CTL setting as described above.
2020-09-04 11:32:40 +02:00
hardware Added hex files, user guides and fingering charts. 2020-03-24 14:00:44 +01:00
NuEVI Added compile option to include a MPR121 board adress scanning function for troubleshooting (MENU button at startup). Changed the destination setup for bite and lever to be less confusing and more powerful (custom CCs now possible). The VIB CTL item in the VIBRATO menu is now removed, and in SETUP CTL menu you will find BITE CTL, BITE CC, LEVER CTL and LEVER CC. 2020-09-04 11:32:40 +02:00
NuEVI-audio Add NuEVI version with audio output (from Johan) 2019-03-04 10:21:21 +01:00
simulation Make IntervalTimer stub so simulator works 2019-10-16 15:28:01 +02:00
TestMPR121 Test tool for MPR121 modules. 2019-12-23 00:41:15 +01:00
uploadable hex files Added compile option to include a MPR121 board adress scanning function for troubleshooting (MENU button at startup). Changed the destination setup for bite and lever to be less confusing and more powerful (custom CCs now possible). The VIB CTL item in the VIBRATO menu is now removed, and in SETUP CTL menu you will find BITE CTL, BITE CC, LEVER CTL and LEVER CC. 2020-09-04 11:32:40 +02:00
user guides Added compile option to include a MPR121 board adress scanning function for troubleshooting (MENU button at startup). Changed the destination setup for bite and lever to be less confusing and more powerful (custom CCs now possible). The VIB CTL item in the VIBRATO menu is now removed, and in SETUP CTL menu you will find BITE CTL, BITE CC, LEVER CTL and LEVER CC. 2020-09-04 11:32:40 +02:00
.gitignore Handle sub menus in a generic way and moved adjust menu logic to separate file 2019-06-23 17:14:17 +02:00
.gitmodules Let imgui submodule be untracked without whining 2019-06-23 15:58:54 +02:00
LICENSE.md First commit. Arduino sketch plus devboard plans. 2017-08-08 14:46:29 +02:00
README.md Updated readme with instructions for editing display library. 2020-07-22 14:06:01 +02:00

README.md

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 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 library by Jonathan Driscoll, but that is no longer an external dependency.

For the SSD1306 library, the Adafruit_SSD1306.h file needs to be edited to prevent it from lowering the I2C speed.

Change this: Adafruit_SSD1306(uint8_t w, uint8_t h, TwoWire *twi=&Wire, int8_t rst_pin=-1, uint32_t clkDuring=400000UL, uint32_t clkAfter=100000UL);

To this: Adafruit_SSD1306(uint8_t w, uint8_t h, TwoWire *twi=&Wire, int8_t rst_pin=-1, uint32_t clkDuring=1000000UL, uint32_t clkAfter=1000000UL);

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.