TI-H: Re: Free Alps GlidePoint Trackpad
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TI-H: Re: Free Alps GlidePoint Trackpad
I looked in a my new catalog, and they don't have it in anymore, so they
may have run out. Ask though. They were like $10 if you just bought them
though, so if you can ask, maybe you can still get them, maybe they are
free yet also. Ask. They might just mot have enough to put in the main
catalog. (they have another catalog that you only get if you order with
items in lower quantity or clearance stuff)
>
>
>Directional joystick for now. The stick is the hardest part anyways.
When
>you move it, it turns 2 pots, 1 for X, 1 for Y. That means there are 2
>lines for 4 buttons. My plan was to have 2 relays (or transistors if
anyone
>can show me how, everything I tried doesn's work) on each of these
lines. 1
>is a 5vdc coil, the other is a 3.8vdc. The 3vdc is an SPDT. When the
stick
>is one way, the voltage is 0. When it is in the middle, it is about
4.8.
>When it is the other way, it is just below 5 (all depending on the
>calibration). The calibration knob just rotates the whole pot. So,
you can
>calibrate it to leave the buttons alone in the middle, and push 'em
down
>when you move it. The buttons are a piece of cake. 0vdc when not
pushed,
>5vdc when pushed. Simple!
>
>I'll order some disks to get the touchpad. Maybe we can work together
to
>get it to work. If anyone has any questions about the joystick
adapter, how
>to do it, or line voltages and pin-out (not officially completed, but I
can
>easily tell you), just send me e-mail reb@netride.com
>
>
-Robert
>Brack
>
>
>-----Original Message-----
>From: Richard Piotter <richfiles1@hotmail.com>
>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>Date: Thursday, February 12, 1998 1:46 PM
>Subject: Re: TI-H: Joystick connector
>
>
>>
>>Go for it!!! Joysticks rule! Is it a positional or directional
joystick.
>>Positional measure exactly where the stick is and directional are like
>>buttons, right, left, up, down...
>>
>>Another thought, Someone tried connecting an ADB mouse to the calc I
>>think. Turned into a big argument though about chips. Oh well, anyway,
I
>>have an Alps Glidepoint track pad, like on a notebook, but in it's own
>>little box and it plugs into a computer. It has Ground, 5v+, and two
>>data lines, like the link port! The one I got was FREE from Mac Mall
>>just for ordering. If we could get it to work, it's the same size as
the
>>LCD on a calc (hint, hint) and all you have to do is get a pack of
disks
>>and you have it free!
>>
>>Richard Piotter
>>richfiles1@hotmail.com
>>
>>>
>>>I got a huge brainstorm in the middle of band the other day. Since
we
>>=
>>>weren't playing, I got out a pad and started scribbling out an =
>>>experimental schematic. This is still preliminary, but I figured out
a
>>=
>>>way to interface a joystick to my calc (gamepads will be done a
little
>>=
>>>differently). The first thing I did when I got home was pull apart
my
>>=
>>>joystick and use my DMM to measure voltage on everything. I then
fixed
>>=
>>>my schematic. I haven't built it yet, but I'd like some feed-back.
=
>>>This should work with and game currently out. I will be posting a =
>>>finished schematic at ticalc.org within two weeks. Tell me what you
=
>>>think.
>>>
>>>
>>=
>>> -Robert Brack
>>>
>>=
>>> reb@netride.com
>>>
>>
>>
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>>
>
>
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