Korg Poly800/EX800 Users

Hi Jusuf,

I have to ask, which encoder did you employ, and did you read the data
sheet?  I ask because rotary "encoders" output a coded pattern meant to be
read by a microcontroller, generally something like on-off-off-on on pin 1
and off-off-on-on on pin 2. etc.  The poly 800  up/down buttons as I read
the schematic are simple switches, so depending on how you wired in the
encoder this could produce highly erratic results :*)

Tim

On Tue, 7 Aug 2007, jusufzemplin wrote:

> Hi,
>
> I tried to deploy rotary encoder, but only instead of Down/Up
> buttons. I simply connected it "parallely" with buttons. But I was
> able to get only 20-positions encoder, so you can imagine, what a
> turning is necessary for 00-99 cutoff for example...) . In my wiring
> I found my solution is not very reliable, values sometimes changed
> itselves, sometimes it behaved like all time pressed "Down" button...
> May this is THE Randomization what I asked for -)
>
> Jusuf
>
> --- In korgpolyex@yahoogroups.com, "korgpolyex800"
> <korgpolyex800@...> wrote:
> >
> > Jure,
> >
> > I forgot to mention that I've been looking at rotary encoders for
> the
> > EX800 to go where the tune pot is. For the Poly 800 itself, I think
> > we're going to have to drill a hole for it. But once in place, the
> > encoder would be able to drive the parameter values and patch
> numbers
> > too and also be used as a MIDI controller sender.
> >
> > But the encoder I'm looking at is about 20 bucks which is quite a
> bit
> > of money to add to a kit that is already likely to be about a
> hundred
> > bucks.
> >
> > I also intend to add new code when the Poly is in patch selection
> mode
> > (not parameter edit mode) so that you can up and down the selected
> > patch with the up and down keys. It drives me crazy that you have to
> > enter the patch number with two hits on the keypad when it would be
> of
> > some use to be able to just go up and down by one.
> >
> > Mike.
> >
> >
> > --- In korgpolyex@yahoogroups.com, "jure zitnik" <kokoon@> wrote:
> > >
> > > hey!
> > >
> > > i just got a totally awesome idea :D
> > >
> > > WHAT IF (!!!) you made it possible to edit/control (any)
> parameter value
> > > with a joystick! i've been meaning
> > > to add a rotary encoder to the poly for quicker editing of the
> patches
> > > (instead of the up/down buttons) but since there's already a
> > joystick, and
> > > since it's signal is obviously A/D'ed (midi out, right?) i'm sure
> > something
> > > like that could be implemented... for instance, you could press a
> button
> > > combo and a joystick axis would set the parameter value absolutely
> > in real
> > > time. or relatively, since it's spring-loaded. or both. or
> > switchable. or
> > > just when holding down a button, so you could then release a
> button,
> > release
> > > the joystick and then press the button again... you know what i
> mean? it
> > > would be SUPER-useful!
> > >
> > > umm... yeah :D
> > >
> > > jure
> > >
> > > On 8/6/07, David Mochen <davidmochen@> wrote:
> > > >
> > > >    Excellent!
> > > >
> > > > Thnx for your hard efforts. From this side, as an English to
> Spanish
> > > > translator, I'd be pleased to help, should you want to localize
> the
> > > > kit/manual/website into Spanish.
> > > >
> > > > Best!
> > > >
> > > > David
> > > >
> > > >
> > > > korgpolyex800 wrote:
> > > >
> > > >  Hi Poly Fans,
> > > >
> > > > For those of you new to the list, a little update on my mod
> project.
> > > >
> > > > Over the last 18 months, I have built a prototype hardware mod
> that
> > > > has a whopping 8K or ROM, 16K of flash EEPROM and another 16K
> of RAM.
> > > > This has allowed me to develop lots of new MIDI functions that
> the
> > > > Poly 800 MKI and EX 800 just never had. I've also been able to
> make
> > > > huge progress with some exciting new features that should give
> the old
> > > > synth some new character and flexibility.
> > > >
> > > > Check out my blog page at
> > > > http://patrioticduo.tripod.com/korgpoly800ex800mkiii/
> > > >
> > > > And now for the latest. Over the weekend, I all but completed
> the
> > > > global parameters editing software. We now have 64 available
> global
> > > > parameters that can be edited basically the same way as patches
> are
> > > > edited. You press the step key to drop into a new "Global"
> mode. Over
> > > > the next week or two I will actually connect those global
> parameters
> > > > to actual functions such as Omni on/off on power up, extended
> playing
> > > > range etc, sysx individual patch dump send (so you can send a
> single
> > > > patch to a second unit or to a computer) and odd/even cascade
> mode
> > > > (your two Poly's will now play 16 note poly together and patch
> changes
> > > > on the master can be automatically sent to the slave -
> something I
> > > > call "sync mode").
> > > >
> > > > Within the month, I'm going to switch over to writing the
> joystick
> > > > code and keyboard code for the Poly 800 itself. Rather than try
> to
> > > > work out where the code for the keyboard and joystick is in the
> Poly
> > > > 800 software I might as well just use the EX800 code that I've
> been
> > > > working with and just add my own routines for the joystick and
> > > > keyboard. That will allow me to configure the keyboard and
> joystick
> > > > with local control on/off and MIDI transmit channel settings.
> > > >
> > > > Once I get that code completed (which I estimate shouldn't take
> more
> > > > than about two or three months), I will then only have to do the
> > > > actual artwork for the new printed circuit board that will
> handle the
> > > > new EEPROM and RAM and package everything up into a mod kit
> that you
> > > > can all get your hands on. I'll have to put some instructions
> together
> > > > and pictures on how to remove the one chip that has to be taken
> out of
> > > > the main board etc. But basically, I think that I should have a
> mod
> > > > kit ready for primetime probably around November or December.
> > > >
> > > > Mike.
> > > >
> > > >
> > > >
> > > > ------------------------------
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> > >
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