[Coco] Arduino as a Mouse/Keyboard interface?
msmcdoug at iinet.net.au
Thu Jul 5 08:22:32 EDT 2012
On 5/07/2012 9:53 PM, Frank Swygert wrote:
> USB keyboards can be plugged into a simple adapter and plugged into a PS/2
> port, so they must have some kind of code detecting the type port, or the
> PS/2 port has some differentiating signal it sends to the keyboard and the
> keyboard switches modes. Couldn't this fact be used to implement a keyboard?
> I know USB mice act the same way, so I don't think it's in the keyboard
You can only use the simple passive USB->PS/2 adapters (like those that ship
with some Logitec keyboards) on keyboards/mice that are able to talk *both*
USB and PS/2 protocols. These passive adapters pretty much just change the
You can also get active converters that convert USB to PS/2. They're more
expensive - but still under $10 - and have an IC inside.
Either way, you'd still need to connect the keyboard via PS/2 signalling to
the Arduino. The USB port on it would still be unused in this case.
| Mark McDougall | "Electrical Engineers do it
| <http://members.iinet.net.au/~msmcdoug> | with less resistance!"
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