Just an update.
Had issues with the first converter I received, as no mouse was actually working, i.e. no cursor movement.
Then recently I received a replacement converter, which now has proven to function like initially expected.
Apparantly the previous problems had something to do with a firmware issue (?).
(me having no soldering skills, nor with MCU-programming, I ordered a fully pre-assembled kit)
So, while testing various options/hardware with this new one, I now even got it to work with that ancient(1999) Microsoft Intellimouse Intellieye optical mouse I wrote about earlier !
(it is a dual USB-native, connected via USB->PS2 passive adapter)
- Another thing I've learned, is that changing mice while converter is powered makes it not work.
If I do that, I then will have to cycle the power to give the converter enough time to 'reboot' and recognize/acknowledge the new mouse... or something like that. Or turn off power before switching, same difference.