Re: Lisa->USB keyboard adapter

Hi again,

Answering some of the questions posed here:

1. I don't think the Arduino sketch posed here will be much help for early Mac keyboards. Based on the information described at http://www.mac.linux-m68k.org/devel/plushw.php , the Mac used a different and slightly more complicated protocol, as well as an extra clock line (had to use that fourth wire for something, I guess). However, there's no reason I can see why an Arduino couldn't do the job.
2. Here's a link to an ADB->USB converter done via Arduino: http://blog.jomon-lab.com/arduino-projects/adb-to-usb-adapter-using-arduino-keyboard-function It's based on this work using something called a Teensy: http://geekhack.org/index.php?topic=14290.msg277407#msg277407 Bonus: here's how to hook up your non-ADB NeXT keyboard: https://learn.adafruit.com/usb-next-keyboard-with-arduino-micro/overview
3. Can you use a USB keyboard with a Lisa (i.e. do the opposite of what's done here)? I don't see any reason why not, but you'll have to make it your own project. If you want to use an Arduino, you will probably need an external USB host shield or an Arduino Due.

--Tom

On Saturday, August 30, 2014 2:29:47 PM UTC-4, Natalia Portillo wrote:
>
> A RJ11 mac128/512k/512ke/plus keyboard. I happen to have two untested of
> them.
>
> ADB thru arduino sounds interesting, have a link?
>
> Sent from my iPhone
>
> > On 30/8/2014, at 9:34, Simon Claessen <sim..._at_email.domain.hidden <javascript:>>
> wrote:
> >
> > a pre-adb mac keyboard? or do you meen a pre-usb adb mac keyboard?
> > there is a keyspan for that, but people have managed to make a arduino
> sketch for adb keyboards iirc.
> >
> > simon
> >
> >> On 30-08-14 05:08, Natalia Portillo wrote:
> >> Would it be compatible with a preADB mac keyb?
> >>
> >> Unfortunately I don't have an arduino to test xD
> >>
> >> Sent from my iPhone
> >>
> >> On 30/8/2014, at 1:40, Tom Stepleton <step..._at_email.domain.hidden <javascript:>
> >> <mailto:step..._at_email.domain.hidden <javascript:>>> wrote:
> >>
> >>> Ever wanted to use your Lisa keyboard to type on a modern computer?
> >>>
> >>> Probably not, but if you have, now you can. Thanks to Patrick
> >>> Schäfer's excellent documentation of his Lisa Keyboard Tester
> >>> (http://john.ccac.rwth-aachen.de:8000/patrick/KBDtester.htm) it was
> >>> straightforward to make an adaptor from one of the USB HID-device
> >>> capable Arduino devices (in my case, Arduino Micro
> >>> <http://arduino.cc/en/Main/arduinoBoardMicro>). The only other
> >>> components you need are a 1/4" phone plug socket and a 10kohm
> resistor.
> >>>
> >>> Software for the Arduino is attached. A picture of my setup:
> >>>
> >>> <
> https://lh6.googleusercontent.com/-W85DjEH8Z28/U_jYrlLj2RI/AAAAAAAAPGs/TbVHETnWz40/s1600/IMG_20140823_140228.jpg>
>
> >>>
> >>> The software is released into the public domain in accordance with the
> >>> statement appended below:
> >>>
> >>> --Tom
> >>>
> >>> *This is free and unencumbered software released into the public
> domain.*
> >>> *
> >>> *
> >>> *Anyone is free to copy, modify, publish, use, compile, sell, or*
> >>> *distribute this software, either in source code form or as a
> compiled*
> >>> *binary, for any purpose, commercial or non-commercial, and by any*
> >>> *means.*
> >>> *
> >>> *
> >>> *In jurisdictions that recognize copyright laws, the author or
> authors*
> >>> *of this software dedicate any and all copyright interest in the*
> >>> *software to the public domain. We make this dedication for the
> benefit*
> >>> *of the public at large and to the detriment of our heirs and*
> >>> *successors. We intend this dedication to be an overt act of*
> >>> *relinquishment in perpetuity of all present and future rights to
> this*
> >>> *software under copyright law.*
> >>> *
> >>> *
> >>> *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,*
> >>> *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF*
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> >>> *IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR*
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> OR*
> >>> *OTHER DEALINGS IN THE SOFTWARE.*
> >>> *
> >>> *
> >>> *For more information, please refer to <http://unlicense.org/>*
> >>>
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> >>> <keymap.h>
> >>> <lisa_keyboard.ino>
> >>
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> > --
> > Met vriendelijke Groet,
> >
> > Simon Claessen
> > drukknop.nl
> >
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