MIDI Scancontroller

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MIDI Scan Controller Connectors (click picture to enlarge)

MIDIscan is an open-source project based on the Arduino framework; a populated board can be obtained via the KeyboardPartner shop. An Arduino Bootloader and a standard firmware ist installed.

Please note: Configuration is performed either via our MenuPanel (if present) or by recompiling the Arduino source code using PlatformIO or the Arduino IDE. Do not order this board when you are not familiar with arduino or you do not own a HX3 MenuPanel. Further information, PCB files and the complete source code can be found on our GitHub repository: https://github.com/keyboardpartner/MIDI-Scancontroller

Please note that the ATmega328 runs on 20 MHz here, so set Arduino IDE settings accordingly.

Features

Up to two Fatar or Pulse-6105 keyboards (with velocity sensitivity) or our Scan61/ScanStrip16 Scan Boards can be connected; additionally, a pedal (Scan16 or Bass25 board) is supported. MIDI Scan Controller also supports a menu system , 16 freely assignable buttons/switches (optional Panel16-I2C or Extend16 board), as well as analog controls assignable to any CCs (optional Drawbar, ANX8, or PTX4 boards). For Fatar keyboards, a FatarScan1 or FatarScan2 board is required; our keyboards from Pulse are already equipped with a compatible scan interface. The scan board used can be selected in the device’s menu (when using the MenuPanel) or via re-compiling the firmware.

MIDI Scan Controlles handles up to 16 assignable buttons (I2C Bus connector) and 16 assignable analog controller inputs (MPX Bus connector). Assignments are done in menu system or by pre-defining constants in source code.

MenuPanel

A KeyboardPartner MenuPanel (any version will do) may be used for configuration.

A KeyboardPartner MenuPanel (see HX3.7_Installation_Manual#MenuPanel) is supported; user interface is similar to HX3 system with rotary encoder and up/down buttons. The MenuPanel can be removed after all settings have been made, they are saved in internal non-volatile memory. Connect the MenuPanel befor powering on.

The menu system is somewhat simpler than the HX3 menu system; it consists of main menus (like button assignment or keybed settings) and corresponding sub menus. Press the encoder button to enter a submenu or to save a parameter. Sub menus can be leaved through a dedicated "Exit" entry. The up/down buttons will scroll through available menus. Parameter changes with encoder knob are immediate, but knob has to be pressed to save them permanently.

Dimensions: 82 mm x 52 mm x 22 mm, weight 38 g

Connectors

MIDI Scan Controller Connectors
Connector Function
PL13 USB connector for power supply and flash programming via Arduino IDE bootloader
PL14 Swell pedal analog input (assignable)
PL6 optional power supply (otherwise by USB connector)
PL10 MPX bus, to analog controllers like PTX4, ANX8, DBX9 (assignable)
PL3 I2C bus, to MenuPanel / Preset16 / Panel16 I2S / Extend16 (assignable switches/buttons)
PL4 to FatarScan1-63, FatarScan2 boards
PL5 to all 4014-based scan boards (Scan61, ScanStrip16, Bass25)
PL9 ISP connector for factory programming (do not use)
PL15 Assignable footswitch input
PL12, PL7 MIDI Output
PL11, PL8 MIDI Input

Menu Entries

The menu system is somewhat simpler than the HX3 menu system; it consists of main menus (like button assignment or keybed settings) and corresponding sub menus. Press the encoder button to enter a submenu or to save a parameter. Sub menus can be leaved through a dedicated "Exit" entry. The up/down buttons will scroll through available menus. Parameter changes with encoder knob are immediate, but knob has to be pressed to save the parameter permanently. A menu entry value of -1 means "Off/Disabled".

MIDI Scan Controller Menu
Menu Function
Upper Channel Set MIDI Channel for upper manual (Fatar or Scan61)
Lower Channel Set MIDI Channel for lower manual (Fatar or Scan61)
Pedal Channel Set MIDI Channel for pedal (Bass25 or Scan61)
Swell Ena/CC Set MIDI CC for swell pedal input (-1 for unused)
Pitchwheel Pot Set MIDI CC for pitch wheel potentiometer input (-1 for unused)
Keyboard Enters submenu for keyboard settings
Pot Assign Enters submenu for potentiometers in MPX chain
Button Assign Enters submenu for button inputs connected to I2C bus
Button Mode Enters submenu for button mode (switch, toggle or momentary) for buttons connected to I2C bus

Keyboard Submenu

Keyboard Submenu
Menu Function
Kbd Driver Selects keyboard driver for hardware (ScanStrip16/Scan61, FatarScan1-61, FatarScan2, Pulse 6105 or none)
Velocity Min Set s minimal MIDI velocity for Fatar and Pulse keybeds. Very slow key velocity is limited to this MIDI velocity value.
Velocity Max Adj Adjusts calculated MIDI max. velocity for Fatar and Pulse keybeds. Adjust to personal taste.
Velocity Slope Sets slope factor for 1/t speed calculation of MIDI velocity. Adjust to personal taste.

Button Mode Submenu

Keyboard Submenu
Value Function
Send CC value Button sends assigned CC value with on/off state
Send CC Evt Button sends a single event of assigned CC value with on state (MIDI value = 127)
Send Prg Ch Button sends a MIDI program change (program is value assigned in Button Assign menu)
Send Note Button sends a MIDI note when pressed (note is value assigned in Button Assign menu)