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

Jan Verhoeven jan at verhoeven272.nl
Fri Apr 11 21:30:30 CEST 2014

peter at easthope.ca wrote:
> 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.

I have used them some times but never fried a mouse...
Perhaps this one is better: 

I'm not sure Chris lives in a place where inexpensive USB mice exist.... 
Contrary to inexpensive coconuts.


Jan Verhoeven

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