Design Keyboard Power-on Tech Info

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3 total messages Started by Clive Wilson Sun, 26 Mar 1995 00:00

#2428

Author: Clive Wilson
Date: Sun, 26 Mar 1995 00:00

15 lines
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Hello. I am interested to know the Pin-out of a Design Keyboard and the
format of signals which pass through the keyboard port.

What I am looking to do is simulate the signals which occur when the
keyboard power-on key is pressed, so that I can have an external device
switch on my Mac LC 630 automatically without anyone needing to be
present.

If you know anything about this or could steer me toward someone/where
that could help me I would be most grateful. I've checked the FAQ and
there seems to be nothing on this subject.

Cheers

Clive Wilson

Re: Design Keyboard Power-on Tech Info

#2429

Author: Clive Bruton/Typonaut
Date: Tue, 28 Mar 1995 00:00

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In article <clive-2603951746070001@ctwilson.demon.co.uk>,
clive@ctwilson.demon.co.uk (Clive Wilson) wrote:

> Hello. I am interested to know the Pin-out of a Design Keyboard and the
> format of signals which pass through the keyboard port.
> 
> What I am looking to do is simulate the signals which occur when the
> keyboard power-on key is pressed, so that I can have an external device
> switch on my Mac LC 630 automatically without anyone needing to be
> present.
> 

Like what, a big robotic finger?

Or do you mean software?


Clive Bruton (AKA the Typonaut :-)))))))))))))

clive@d-supp.demon.co.uk

Re: Design Keyboard Power-on Tech Info

#2430

Author: Robert Levandowski
Date: Sun, 02 Apr 1995 00:00

23 lines
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In <clive-2603951746070001@ctwilson.demon.co.uk> clive@ctwilson.demon.co.uk (Clive Wilson) writes:

>Hello. I am interested to know the Pin-out of a Design Keyboard and the
>format of signals which pass through the keyboard port.

>What I am looking to do is simulate the signals which occur when the
>keyboard power-on key is pressed, so that I can have an external device
>switch on my Mac LC 630 automatically without anyone needing to be
>present.

Simple.  Short pin 2 to pin 4 of the ADB connector.  To do a neat job,
maintain the short until pin 3 reaches +5 vdc.

If you unplug your mouse (with the computer off!) and look at the connector,
the bottom-left pin is pin 1, the bottom-right pin is pin 2, the top-left
pin is pin 3, and of course the top-right pin is pin 4.

Pin 1 carries the ADB signal; pin 2 is the power-key-sense line; pin 3
is +5 vdc, and pin 4 is ground.
-- 
--Rob Levandowski
  Computer Interest Floor associate / University of Rochester
  macwhiz@cif.rochester.edu     [Opinions expressed are mine, not UR's.]

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