Keypad Emulation

Archiver

I want in a model railroad (Hornby Zero One command control system)
situation to use a stamp for programming one touch entry giving a
keypad a series of keypad entries followed by the entry key.

eg If I push button 'A' (one of up to say 50 buttons)the stamp then
advises kepad (16 key pad momentary relays)a series of instructions
(Engine 14, Slave 4, Inertia 3, forward direction, enter)

I will need to be able to update the stamp easily by PC when
new/additional/change of instructions is required.

Charlie

Archiver

--- In basicstamps@yahoogroups.com, "sswcharlie <techj@i...>"
<techj@i...> wrote:
> I want in a model railroad (Hornby Zero One command control system)
> situation to use a stamp for programming one touch entry giving a
> keypad a series of keypad entries followed by the entry key.
>
> eg If I push button 'A' (one of up to say 50 buttons)the stamp
then
> advises kepad (16 key pad momentary relays)a series of instructions
> (Engine 14, Slave 4, Inertia 3, forward direction, enter)
>
> I will need to be able to update the stamp easily by PC when
> new/additional/change of instructions is required.
>
> Charlie

Sounds to me that you have 16 relays, each associated with a "keypad"
button function and a single button/contact closure for a "one touch"
operation. (kind of like a speed dial on a telephone)
I think all you need is one input to the stamp and 16 outputs from
the stamp. Now when the input detects logic or state change, "goto" a
specific routine of pulsed output channels (relays) always ending
with the "enter" relay channel and returning to look for another "one
touch button push.

Do I understand the application?

---Guy

Archiver

Hi

What I am trying to achieve is a quicker and less keypad entering to call up
a locomotive. If I set up a series of single switches, say 15 or 20, and if
you press one it should start the sequence of keypad entries ending with the
enter key. The stamp would need to recognise which button is being pushed
so it can select which sequence to operate the keypad.

I had a system working some years back using a timer, decade counter, relays
etc, but it required a lot of setting up and soldering etc for each one and
I thought a stamp type micro would enable setting up etc a lot easier.

Appreciate your comments.
Charlie


Subject: [noparse][[/noparse]basicstamps] Re: Keypad Emulation


> --- In basicstamps@yahoogroups.com, "sswcharlie <techj@i...>"
> <techj@i...> wrote:
> > I want in a model railroad (Hornby Zero One command control system)
> > situation to use a stamp for programming one touch entry giving a
> > keypad a series of keypad entries followed by the entry key.
> >
> > eg If I push button 'A' (one of up to say 50 buttons)the stamp
> then
> > advises kepad (16 key pad momentary relays)a series of instructions
> > (Engine 14, Slave 4, Inertia 3, forward direction, enter)
> >
> > I will need to be able to update the stamp easily by PC when
> > new/additional/change of instructions is required.
> >
> > Charlie
>
> Sounds to me that you have 16 relays, each associated with a "keypad"
> button function and a single button/contact closure for a "one touch"
> operation. (kind of like a speed dial on a telephone)
> I think all you need is one input to the stamp and 16 outputs from
> the stamp. Now when the input detects logic or state change, "goto" a
> specific routine of pulsed output channels (relays) always ending
> with the "enter" relay channel and returning to look for another "one
> touch button push.
>
> Do I understand the application?

Archiver

Charlie-

This may be reasonably Stamp-able depending on the characteristics of
your existing keypad. Can you provide specifications, or a pointer
to specifications, to describe things like the keypad's model, scan
rate, logic levels, interface protocol, etc.?

Regards,

Steve

On 13 Jan 03 at 19:20, Charlie wrote:

> Hi
>
> What I am trying to achieve is a quicker and less keypad entering to
> call up a locomotive...