Highly Liquid Forum facebook twitter google plus rss feed
  #1  
Old 05-29-2013, 12:40 AM
Heath Heath is offline
Junior Member
 
Join Date: May 2013
Posts: 1
Default Default MIDI configuration

Hi,

I realise this is really basic stuff, but I am currently involved in a collaborative project and am not in the same town (or state!) as the physical MD24 board. I am a composer, and need to compile the MIDI data to drive a series of servo motors.

From reading the firmware guide, the MD24 comes with a default MIDI configuration. Does this mean that there is a default data type (cc, note on, etc.) that corresponds with motor position? If so, is there a document that outlines the default setup?

At this point, I am unsure of MIDI channel, data type etc.

I'd like to send my collaborator a MIDI file that can test the set-up, but am unsure of how to proceed. Apologies for my lack of electronics chops, I am just hoping to get info that is oriented toward the MIDI end of things, based on the default setup.

Cheers,

Heath

Last edited by Heath; 05-29-2013 at 09:58 AM.
Reply With Quote
  #2  
Old 05-30-2013, 01:58 PM
John's Avatar
John John is offline
Moderator
 
Join Date: Jan 2009
Posts: 3,007
Default

Hi Heath, welcome to the forum.

The information you need can be found in the MD24 firmware manual. The PDF is linked at the MD24 product page:

http://midiwidget.com

The "Default Configuration" section provides a description of the MD24 factory default settings. The default is that the MD24 responds to MIDI notes 60-83. However, the default output is logic on/off (basically a "gate" signal for each note). To get servo control output, a sysex configuration message must be used to change the output type from logic on/off to a servo PWM signal.

Servo position can be controlled by any of the following:

- Note number
- Note velocity
- CC value
- Program number
- Pitch wheel

The channel can be any MIDI channel 1-16. (Each output can respond to a different MIDI channel).

Just let me know what message type and MIDI channel you'd like to use for each MD24 output. I will post a sysex file to configure the MD24 to generate the servo PWM signals.

It's also important to note the wiring of the servos to the MD24. You can find a wiring diagram in the MD24 hardware user manual, also available as a PDF at the MD24 product page.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 12:07 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.