[rescue] using type 4 keyboards on usb?
mouse at Rodents-Montreal.ORG
Fri Aug 28 01:58:12 CDT 2009
>> [...Sun keyboards and serial lines...]
> Wouldnt something like what FTDI makes (their 6pin TTL->RS232->USB
> dongle) work in this case?
Quite possibly. It might work directly; it might need an inverter.
(Oh, and, it might need a 5V power supply for the keyboard if the
dongle doesn't provide one, but that much is true of the other options
too.) Or it might not work - I don't know FTDI's stuff.
> I'd try it, but I've got a 3v FTDI dongle and the Type 5 keyboard I
> have looks to be 5v if the specs are to be believed.
Yes, those keyboards are 5V. If you're competent to build such things,
it's only a couple of transistors to level-shift between 5V and 3.3V.
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