This code is made for Befaco's VCMC module. A voltage controlled MIDI controller. Find further information here This code will work in any hardware revision from PCB v1
The code will also run with CV Thing module. See below install options for details. Find further information about CV Thing here
- Controls now can be named. List of common names is available as well as a list of user defined names.
- Velocity now applies to notes sent via Gates.
- Clock and ST/SP can be mapped to Aux.
- Changed clock handling.
- Changed Sysex structure to improve compatibility with MACOS
- Panic can be mapped to gates
- RTC initialization removed from mk20dx128.c to avoid startup issues on high loaded systems (applied to Bin file)
- Default mapping fixed to match manual and Bitwig script.
- Gates are no longer visualized in the screen as redundant.
- Some minor visual tweaks on menus.
- Improved stability on menus.Now configuring during performance is not disturbing usability.
- Calibration ranges change depending in input range.
- Calibration is not resetted when changing Input range.
- In Note mode now you can choose the time for the Note OFF
- Fader readings are smoother now.
- NRPNs values can be set now in decimal format.
- Fixed code to improve SPI screen compatibility.
MIDI
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Get latest firmware file from Bin folder.
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Install Teensy uploader app found here
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Connect VCMC to your computer using a USB cable.
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RunTeensy uploader and load hex file. If prompted by the app, press teensy button to begin transfer... Make sure Module is plugged in.
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Download Arduino IDE Go to the official Arduino website and download the latest version of Arduino IDE for your operating system and install it.
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Download Teensyduino Go to the official Teensy site and follow the instructions to install the add-on.
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Edit LCD Library
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Browse in your Arduino folder to hardware/teensy/avr/libraries/Adafruit_SSD1306
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Open file Adafruit_SSD1306.h and search for line:
//#define SSD1306_128_64 -
Uncomment it (and comment the currently uncommented one):
#define SSD1306_128_64
(Note that recent versions of this library no longer require this #define, so we might be able to remove this step in the future.)
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Download the firmware Clone or download this repository. Go to https://github.com/Befaco/VCMC and press "clone or download" to download the repository to your computer. Extract the zip file and copy "firmwareteen" folder to your sketchbook folder.
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Install the libraries Download the libraries and install them following the instructions from this link https://www.arduino.cc/en/Guide/Libraries
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Connecting the module Connect teensy or the module to the computer using USB connector. If you are programming with Teensy connected to the module, please make sure the module is powered on.
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In Arduino software Tools > USB Type submenu choose Serial + MIDI
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Upgrading Press "Open" and search the file "Firmwareteen.ino" located on the "VCMC" folder. Select Teensy 3.2/3.1 as your board, choose the relevant port, Speed at 96 MHz, and configure the USB type as USB+Serial.. Then hit upload
If everything goes well you should see a "Done uploading" message in a few seconds. If something happens during the upgrade, check your Arduino settings following the instructions of this link https://www.arduino.cc/en/Guide/Troubleshooting
Upload process is the same for CV Thing. But you will need to uncomment two lines from the code:
- In Definitions.h uncomment line 58:
//#define CVTHING 1
- In name.c uncomment line 6
//#define CVTHING
We have been facing inconsistencies with screen providers. Differnet batches had different horizontal lines offset. If you are facing offset problems, there is a setup in Definitions.h lines 61 - 63:
const uint8_t SCREEN_OFFSET = 0xFF; /// Screen offset (Adjust based on screen manufacturer, lot, ...) Possible values 0x00 0xFF 0x01
const uint8_t SCREEN_OFFSET = 0x00; /// Screen offset (Adjust based on screen manufacturer, lot, ...) Possible values 0x00 0xFF 0x01
Change the value acordingly.
In some heavy loaded, power hungry, systems teensy might not boot up. We found that disabling RTC from mk20dx128.c file solved the issue. If this happend to you, comment RTC code from the file and compile.
Coded By Sergio Retamero (sergioretamero@gmail.com)