Be sure it will work. There are plenty of code samples for driving a
Matrix Keyboard for almost any kind of micros. Also for RS232. Choose
whatever makes you feel more comfortable. For this application, if
they have enough I/O pines, they are all the same.
And for RS232, 10feet of cable are easy cake. I use to drive cables
up to 15 feet at 115200bps with no problems.
Regards,
Javier///
--- In "salazarluquin_sf"
<> wrote:
>
> Ok. Thank you. I am going to try to do what you say to me with the
> micro. I hope that it works. I thought the same thing about the
> signal propagation problem but I needed the second opinion to make
> conclusions. Thank you a lot.
>
> Regards,
> Sergio
>
> --- In "javierroitman" <javierroitman@>
> wrote:
> >
> > The problem is that you cannot use such a long cable with a
> passively
> > driven keypad. Do not go over 1-2 feet for reliable results. The
> keypad
> > is supposed to be *very* close to the TS7000.
> > If you need to move the keypad far away from the TS you should
> better
> > consider implementing the keypad scanning code in a
microcontroller
> and
> > connect it to the TS through a serial port.
> > Or find the way to have the TS close to the keypad...
> > I guess that you will also want to have an LCD next to them, and
> the
> > LCD does not like long cables either(not longer than 6 inches).
> > It is not a matter of the kind of cable you are using. It is a
> matter
> > of signal propagation and no cable will work reliably for your
> lengths.
> >
> > Regards,
> > Javier////
> >
> >
> > --- In "salazarluquin_sf"
<salazarluquin@>
> > wrote:
> > >
> > > Hello, I Am trying to use a cable of 10 feet with my keypad and
I
> use
> > > the code of sample that provide with the documentation of the
ts-
> 7200
> > > nevertheless the keypad does not work very well. I think that
it
> is a
> > > kind of noise in the cable. What can I do to solve this problem
> or
> > what
> > > type of cable I have to use? Thank you.
> > > Note: I use the same cable in 4 feet and works well, but I need
> it
> > for
> > > 10 feet.
> > >
> > >
> > >
> > >
> > > Sergio
> > >
> >
>
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