they have feeders that you can program or set up to your liking  I will
have to do some research to find them

Build your own.  The first design that came to mind is a hopper above
a chute to the bowl with a metering device between below the hopper.
My first idea is two disks separated by four open top and bottom
tubes.  The tubes are under holes in the top plate and are attached to
it.  The bottom plate has a discharge hole over the chute.  As the top
disk rotates at one or one-half revolution per hour, it picks up a
load of food, then dumps it down the chute, meanwhile the solid part
of the top disk keeps the food in the hopper and the solid part of the
bottom plate keeps the tube from emptying too soon or while loading.  

It would be fairly easy to build an electromechanical controller that
lets the disk rotate once, then stop to wait for the next command, and
to issue start commands via cam operated lever switches.  

I can see a two switch design: a cam with a pin on the shaft of a 12
hour timer motor (or two pins on a 24 hour timer) - the pin closes a
normally open switch in parallel with the normally closed switch
operated by a pin on the rotating disk. Closure of the timer switch
starts the disk turning and closes its keep-alive switch.  At the end
of the cycle, the timer switch has opened and the disk switch is
opened by the pin on the disk, causing the operation to come to a stop
waiting for the next timer switch closure.

I have never used an automatic feeder, so I have not tried any of these.
However, there are a number of programmable feeders available. Here is one
that dispenses dry food:

http://www.safehomeproducts.com/shp2/es/automatic_pet_feeders.asp

Canned food is usually considered to be much better for diabetic cats. Many
people have been able to bring their cats' glucose levels into normal ranges
by a carefully monitored feeding of premium canned food. Here are two
programmable feeders that can be used for either dry or canned food (with
ice packs in the base):

https://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=10283&N=2002+113908

http://www.petelectronicsystems.com/public_html/index.php?productID=210

MaryL

Google is your friend:

http://www.autopetfeeder.com/

It has a chip for you to record a several-second message that plays when it
turns.  It has 8 compartments, but one compartment will always be open.  We
bought one on eBay for our cat Five. She's conditioned herself that she
usually waits at the feeder at the times she knows it will activate.  If
she's not aware that it's about to activate and she is sitting in another
room when she hears the voice we recorded, get out of the way as she's a
furry freight train on speed!!!

You can program the digital timer for multiple times so you can feed once a
day for 8 days, twice a day for 4 days, etc.  Just remember one compartment
is always open until the lid turns to open the next compartment.  It also
has four ice packs (you fill them with water and freeze them) that go under
the food compartments in case you need to serve something that needs to be
kept cool.  Of course that set of ice packs won't last multiple days, so use
them or not as you see fit.  They are powered by three AA cells which last
quite a while for us on a twice-daily schedule.