Build/Mod simple midi keypad to trigger patch changes on GR-55/VG-99

Started by mapperboy, October 17, 2013, 09:08:57 AM

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mapperboy

Greetings to all VGuitar addicts!
A project like this may be buried somewhere but right now I can't find anything...
Does anyone have a DIY set of plans to build the simplest possible midi telephone style keypad so that I can punch-in for example "199-Enter" and switch the GR-55/VG-99 to patch 199? (yeah I know the GR has things arranged in banks of 3 for its numbering scheme but that should be just a midi mapping chore).
I was thinking small like a little calculator keypad that I could attach to my strap or wear on my belt.
Sometimes I just don't want to reload the GR-55/VG-99 patch sequences like some do for a known set so that I just decrement/increment  through them for known set tune changes.  Cause I do a lot of improv I want to be able to spontaneously switch to something far away from the patch I'm on without having to do the pedal/bank dance.
(I guess there are midi i-apps out there but I don't own nor intend to own an i-device. I hate Apple so maybe I'm screwed huh?
-M
 
"No such thing as spare time.
No such thing as free time.
No such thing as down time.
All you got is life time. Go!"
- Henry Rollins

Elantric

Get a used 2011  ipod Touch 3 + iK Multimedia Irig MIDI adapter and a $5 IOS MIDI control app  - like MIDi Wrench.


Or review the Arduino Teensy 3.0  DIY thread
https://www.vguitarforums.com/smf/index.php?topic=8532.0


or


MikeTranch

Hi Mapper,

I'm in the early stages of an arduino (http://arduino.cc/en/Main/ArduinoBoardNano) based project using this keyboard from Amazon: http://tinyurl.com/lhpx8cy

It will plug into the GR55 midi in.  I want to free up the GK Sw1 and Sw2 for patch use, and I refuse to bend down to scroll the wheel on the floor.  I'll also have small push buttons for incr/decr patch and/or incr/decr bank.  And maybe a simple 7 segment display for the patch #.

BTW, as far as I can tell, the GK Sw1 and Sw2 buttons are the _only_ control available for incr/decr patch or bank.  I was looking for a way to do it with Assigns or MIDI CC messages, but no dice.  I'd image there's a SYSEX message for it, but I haven't been able to find that yet.  So my project will remember the patch # at power down, and on power up it will send that PC message. 

I'd be interested in your thoughts, suggestions.  I plan to get going on this in the coming weeks, and will eventually blog about it

www.mikesmicromania.com

and post an update to this thread...