(keitai-l) Re: about external keyboards for i-mode phones

Henry,

Impressed with your zealous... always like to hear about reverse engineering
projects.

This is what i found. let me know if you want me to look any deeper for you
(have a bit of spare time sounds like fun) - the link below could be the
zaurus-based document you saw??

http://free01.plala.or.jp/~mobile/zaumaga/labo/kb/keyboard_lab.htm
ザウルスポケット(MI-110M)と携帯キーボードCE-KB1との間の通信プロトコル
data transfer protocol info between the zaurus pocket(MI-110M) and keitai
keyboard CE-KB1
(the person who wrote the document believes it to be correct... but things
may have changed and there may be the possibility that he reverse engineered
something wrong himself)


hoped to find more for you... i guess there isn't as much there as i
thought. good luck, let us know how it goes.

-stu



----- Original Message -----
From: "Henry Minsky" <henry_minsky@hotmail.com>
To: <keitai-l@appelsiini.net>
Sent: Tuesday, May 01, 2001 5:20 PM
Subject: (keitai-l) Re: about external keyboards for i-mode phones


>
> I am in the process of reverse-engineering the P503i external
> keyboard, in order to be able to stuff GPS data and other data
> into an iAppli applet via the keyboard cable. The external keyboard
> works with Java applets, so it ought to be possible to use
> a small one-chip translator to convert a serial data stream into
> simulated key-presses, although I don:t know what data rate can be
> supported with this scheme under Java. I would expect maybe four or five
> digits per second, but it might handle more if the firmware happens
> to be written in that way.
>
> I am getting a logic analyszer in a couple of weeks, but meanwhile
> I took the keyboard apart, and it has three wires to the phone.
> Based on some other reverse engineering I saw on the web for a
> Zaurus keyboard, I would guess
> this will be a serial connection at 9600 baud, either async or
> synchronous with a clock signal on one of the wires.
>
> More info in a couple of week.s If anyone else has more info,
> please tell me!
>
> Henry
>
>
> >From: rolf van widenfelt Reply-To: keitai-l@appelsiini.net To:
> >keitai-l@appelsiini.net Subject: (keitai-l) about external keyboards for
> >i-mode phones Date: Sun, 29 Apr 2001 23:52:56 -0700
> >
> >
> >i am trying to find out more about controlling an i-mode phone from an
> >external keyboard. two models i have looked at support some kind of
> >external keyboard (i-board), namely NEC (N503i) and Panasonic (P503i).
> >perhaps there are others, but has anyone tried these? is it possible to
> >control everything about the phone from the external keyboard?
> >
> >does anyone know where i can find out more about the serial protocol that
> >these external keyboards use? i imagine that there are some "keitai
otaku"
> >sites (probably in japanese).
> >
> >thanks!
> >
> >-rolf
> >
> >[ Did you check the archives? http://www.appelsiini.net/keitai-l/ ]
> >
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