There's also quadrature phased encoders that can give you up & down
signals in conjunction with a D-flip flop. That could still produce
somewhat erratic results without an addional de-bounce/de-chatter circuit.
Tim
On Tue, 7 Aug 2007, jure zitnik wrote:
> i had a schematic of a simple circuit, no microcontroller needed, don't
> remember how it works. but it's supposed to work and it's like 1 IC and a
> resistor. will check it out, maybe even throw it together and test it, i
> intended to anyway, just forgot about it :D
>
> jure
>
> On 8/7/07, Tim Bieniosek <tab27@...> wrote:
> >
> > 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 <korgpolyex%40yahoogroups.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 <korgpolyex%40yahoogroups.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.
> > > > > >
> > > > > >
> > > > > >
> > > > > > ------------------------------
> > > > > > Booking a flight? Know when to buy with airfare predictions on
> > > MSN
> > > > Travel.<http://g.msn.com/8HMBENUS/2755??PS=47575>
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
> >
> >
>