[Oberon] PS/2-USB adapters; was Re: Project Oberon 2013 on GitHub?

[peter at easthope.ca]

>From jan at verhoeven272.nl  Thu Apr 10 15:10:44 2014
Date: Thu, 10 Apr 2014 15:10:44 +0200
> I guess you need something similar to this:
> http://www.alternate.nl/USB-naar-PS-2-adapter/html/product/865702

That adapter has a female PS/2 connector and a male USB A. 
I tested a similar adapter with a Logitech Model M-S48 mouse. 
The result was to burn out the Y axis photodiode.  It was hot enough to 
melt two spokes on the encoder wheel.  I haven't cut the adapter apart 
but will guess that it contains nothing but conductors. Whereas 
http://en.wikipedia.org/wiki/PS/2_port#Conversion_between_PS.2F2_and_USB
suggests that something more is needed, for the M-S48 at least.

The adapter in alternate.nl might limit the current it passes and work for 
all PS/2 mice.  Another possibility is an inexpensive USB mouse.

Regards,                    ... Peter E.


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