7.8
MiDisp - 2x16 characters display
MBBS boards have lots of useful features, and all are available to the user without
need of any PC or custom programmer. Simply because there are so many
parameters, it may sometimes become difficult to follow every setup procedure
without any clear indication what is happening. To help in user settings and add yet
another functionality, you may use MiDisp module, with the following features:
●
one input for external switch, assignable the same way as any other scanner
●
text messages indicating every stage of user settings
●
backlit color changing depending on current EDIT, or other modes
●
MIDI monitor useful when checking communication
MiDisp module can be connected anywhere in the system, directly to MBBS, or in
the chain with other scanners. There may be several MiDisp modules connected to
one MBBS master controller, but due to power limitations there should be no more
than 5 display modules in one system. To have more, you should use power
booster available on request. Only one MiDisp will become system display during
startup. It will show all EDIT messages and MIDI monitor. Other displays may be
used only as 1-button controls with visual indication. To maintain full compatibility,
you should use MiDisp in version 1.4 or later.
You may change the way how MiDisp operates to some extent. To do any settings
on particular display module, you must select it first, and the only way of doing that
is to press the button connected to MiDisp button input (or simply short those 2
pads temporarily with a piece of wire). The pads to connect MiDisp button are
located at the back of it and are clearly indicated. More general guidelines about
entering commands can be found in chapter 5.
Possible controls are:
7.8.1
Toggle mode - #908
In toggle mode, the module works like bistable (SPDT) switch. If a button is
momentarily pressed, the display shows "ON" and turns white. Appropriate MIDI
message is sent via MBBS's MIDI OUT. Another button press, and display turns
blue, showing "OFF", and another MIDI message is sent. You can assign completely
different MIDI events and channels for "ON" state and "OFF" state, like described in
chapters 5.2. and 5.3. Both states work like potentiometer action, but the value is
always the same, determined by device ID, see 7.8.3 for details.
7.8.2
Momentary mode - #909
In momentary mode, it works almost like a keyboard. It is useful if you want to
connect mechanical toggle switch. Apart from momentary action, all other
functionality is exactly like in toggle mode - ON state generates different event than
OFF state, and can be programmed.
7.8.3
Display ID set - #914
Each MiDisp in the system has individually set parameter called "Display ID".
Currently it is used only as value for on/off events of the button connected to
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