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PS/2 Keyboards for Calculators
Posted by Eric on 3 December 2001, 01:15 GMT

Cullen Logan has written a technical document on something I've personally been interested in for a long time: using a regular PS/2 keyboard for a TI calculator (drivers are released for the TI-86; a TI-89 version is on its way). It's a good read for you technical types out there; basic schematics are now posted as well. Hopefully the ball will start to roll on this one...

Update (Nick B.): The ball has indeed started to roll, as it has been ported to the 83+ Silver Edition by Radical Software.

 


The comments below are written by ticalc.org visitors. Their views are not necessarily those of ticalc.org, and ticalc.org takes no responsibility for their content.


Re: PS/2 Keyboards for Calculators
danco  Account Info
(Web Page)

Wow! This is so cool. I've been looking for info for using a mouse with my 86 for a long time, but a keyboare would be even cooler. I plan to build this tonight, I'll post my results later if anyone's interested.

     3 December 2001, 01:37 GMT

Re: Re: PS/2 Keyboards for Calculators
SMKnight  Account Info
(Web Page)

Wow this looks cool, I really want to try it when the 89 version is available, so I'm interested in how it goes if you build it.

     3 December 2001, 02:51 GMT

Re: Re: PS/2 Keyboards for Calculators
danco  Account Info
(Web Page)

I have it built and running now. It works, but it isn't very reliable (i.e. doesn't get all characters, misinterprets keypresses, or displays characters for no reason). But, on the whole it's pretty cool, and faster than the built in keyboard. With future updates, I think it could be very usefull. Keep up the good work, Cullen!

     3 December 2001, 03:28 GMT

Idea
jtjdt  Account Info
(Web Page)

I just got a Great Idea
What if Ticalc.org used Cnet Cathup so you could update all of your old calculator programs with the click of a button. I know Symantec and various other companies use this software for the same purpose.


-JD

     3 December 2001, 07:38 GMT


Re: Idea
HBES27  Account Info
(Web Page)

I have a question for you, what is the point of oyur idea. It makes no sense, what do you mean by updating the programs witht he click of a button?

     4 December 2001, 00:39 GMT


Re: Re: Idea
lord_nightrose Account Info
(Web Page)

I have a question for you, what is the point of oyur post. It makes no sense, what do you mean by not spell checking it witht he click of a button?

     4 December 2001, 01:11 GMT

Re: Re: Re: Idea
jtjdt  Account Info
(Web Page)

Go to http://catchup.cnet.com
Try it out on your computer
Come back
Read my comment again
Then tell me what you think

-JD

     4 December 2001, 01:35 GMT


Re: Re: Re: Re: Idea
lord_nightrose Account Info
(Web Page)

Three words: Woot.

     4 December 2001, 10:23 GMT


Re: Re: Re: Re: Re: Idea
lord_nightrose Account Info
(Web Page)

I'm illiterate, and I can't count.

     5 December 2001, 08:33 GMT


Re: Re: Re: Idea
tge82  Account Info

LOL!

     4 December 2001, 05:41 GMT


Re: Re: Re: PS/2 Keyboards for Calculators
Cullen Logan  Account Info
(Web Page)

Reliability....yeah I have had some problems. :( the 86 is just too slow. The 83+SE text editor beta is out now just go to my page and follow the link on the keyboard page.

     4 December 2001, 05:09 GMT


Re: Re: PS/2 Keyboards for Calculators
GavinO  Account Info
(Web Page)

Hmmm. I wonder how hard it would be to use the device to read mouse signals. Probably lots more complicated, and you'd have to have some kind of resident interrupt to make use of it in other programs. The actual would be to get negative movement to trigger left arrow, etc, and left click to hit 2nd and right click to hit diamond or alpha or something. It would make c2c easier to play :) \/\/007

     5 December 2001, 21:11 GMT

Re: PS/2 Keyboards for Calculators
danco  Account Info
(Web Page)

Wow! This is so cool. I've been looking for info for using a mouse with my 86 for a long time, but a keyboare would be even cooler. I plan to build this tonight, I'll post my results later if anyone's interested.

     3 December 2001, 01:37 GMT

PS/2 Keyboards for Calculators
Chickendude  Account Info

Wow! this is neat! third post!?

     3 December 2001, 01:41 GMT

Re: PS/2 Keyboards for Calculators
Andrew  Account Info
(Web Page)

This is too cool. Anyone know where to get a female 6-pin Mini-DIN (PS/2) so that I don't have to cut up a keyboard cable?

~Andrew

     3 December 2001, 02:00 GMT


Re: Re: PS/2 Keyboards for Calculators
Michael Vincent  Account Info
(Web Page)

RadioShack

     3 December 2001, 04:12 GMT

Re: PS/2 Keyboards for Calculators
aksuur

im confused. how do you use a keyboard with a calc?

     3 December 2001, 02:02 GMT


Re: Re: PS/2 Keyboards for Calculators
aksuur

never mind. i was being stupid

     3 December 2001, 02:08 GMT


Re: Re: Re: PS/2 Keyboards for Calculators
BiggestBob68  Account Info

How Do You, Cause i'm confused.

     3 December 2001, 03:12 GMT


Re: Re: Re: Re: PS/2 Keyboards for Calculators
Robert Mohr  Account Info

Plug it into the link port (I'm assuming), and type, kinda like with VTI.

     3 December 2001, 21:13 GMT

Re: PS/2 Keyboards for Calculators
Michael Vincent  Account Info
(Web Page)

There's also a TI-83 Plus Silver Edition driver I've been working on with Cullen. It's faster than the TI-86 driver and has more features such as lower/upper case support with the shift key as well as a rudimentary text editor.

     3 December 2001, 04:11 GMT


Re: Re: PS/2 Keyboards for Calculators
JoelThePenguin  Account Info

This keyboard/calculator thing is kind of weird...does having one serve a purpose? Programming BASIC Faster? or is making one just "because"?

Never mind...

     3 December 2001, 06:44 GMT


Re: Re: Re: PS/2 Keyboards for Calculators
Michael Vincent  Account Info
(Web Page)

Well now you can type notes or whatever on your calcs *much* faster than on the built-in keypad. Yes, I am a nerd; but I can type only around 33 wpm on the 83+ keypad and I can type 119 wpm on a PC keyboard. Unfortunately the calc can't handle 119 wpm but it does let you type at a decent speed.

     3 December 2001, 14:22 GMT


Re: Re: Re: Re: PS/2 Keyboards for Calculators
lord_nightrose Account Info
(Web Page)

I can type almost as fast as I talk. That's about 200 WPM. On a TI-89, I can do about 80WPM.

     4 December 2001, 00:20 GMT


Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
JoelThePenguin  Account Info

Um....whatever. 200 wpm = 3.33 words per second. right.

80 wpm = 1.33 words per second. On a TI-89?!. OK...

     4 December 2001, 01:23 GMT

Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
Michael Vincent  Account Info
(Web Page)

I vaguely remember reading somewhere the world record speed is 160 or 180 wpm or something...

     4 December 2001, 01:57 GMT

Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
JoelThePenguin  Account Info

That sounds about right. I can do about 60-70 accurately (sp?). I think nightrose was being sarcastic.

I am wondering why I am posting on an old news item...

     4 December 2001, 04:24 GMT


Re: Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
lord_nightrose Account Info
(Web Page)

I c4n h4xx0r j00r b0xx0rs f+s+3r +h4n +h4+, w00t.

     4 December 2001, 10:26 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
vektrone  Account Info

what the crap is woot?? have i been hiding in a deep dark hole in the ground with my eyes closed, or is this something you made up just for the sake of having your own crazy word?

     4 December 2001, 23:24 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
lord_nightrose Account Info
(Web Page)

no, it's a semi-real word, used buy 'l33t h4xx0rs' everywhere. I have no idea what it means, but I know it's some sort of general exclamation denoting happiness or a sense of victory.

     5 December 2001, 21:46 GMT


Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
David Phillips  Account Info
(Web Page)

A quick Google search turned up an article on the subject. The link is listed as my web page.

     4 December 2001, 09:32 GMT


Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
lord_nightrose Account Info
(Web Page)

ok I exaggerated... more like 120 WPM typing and about 40 WPM on a calc...

     4 December 2001, 10:24 GMT


Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
lord_nightrose Account Info
(Web Page)

w00t.

     4 December 2001, 16:46 GMT


Re: Re: Re: Re: Re: Re: Re: Re: PS/2 Keyboards for Calculators
Tom Behrens  Account Info

w00t

btw, i thouht is was only h4x0rz

     10 December 2001, 02:49 GMT

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