exxos's Atari, Amiga & retro forum

stephen_usher wrote: 30 Sep 2025 13:52 I think that I'll just bring my "stunt" Sinclair QL and Raspberry Pi 400 to show off my diag ROM and the Pico based keyboard matrix emulator board, which should be able to emulate any keyboard matrix up to 8x12.


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Nice

Great stuff @stephen_usher :)

stephen_usher wrote: 30 Sep 2025 13:52 I think that I'll just bring my "stunt" Sinclair QL and Raspberry Pi 400 to show off my diag ROM and the Pico based keyboard matrix emulator board, which should be able to emulate any keyboard matrix up to 8x12.


IMG_4517.jpeg

@stephen_usher I loved your exhibit from last year, the telex/teletext using a Pi to create pages from the internet for an ancient telex machine via a soft modem ?

A perfect fusion of really old obsolete equipment, still able to be used is it was intended, with some modern help and interfacing - superb.

:geek:

That'll be a good one @stephen_usher, wondering if the keyboard matrix emulator could be used in my Atom.

Ticket and raffle entry bought and paid for :yay:

Now the wait. . . . .

PhilC wrote: 30 Sep 2025 16:08 That'll be a good one @stephen_usher, wondering if the keyboard matrix emulator could be used in my Atom.

Quite probably. Technically it's just a 8 line in and 12 line out level shifter for the Pico with an RS232 port, so it Just(tm) needs software on the Pico.

I'm looking at re-writing the QL specific firmware to be more generic anyway.

Just over one week to go now! :girldance:

Remember folks...

It would be easier if people could buy their tickets in advance, rather than on the door (especially exhibitors, as we have to sort out tables/locations before we start).

Thanks for your understanding. :D

Video posted along with a Promotion code for the raffle!!

:bravo: :thanksyellow:

Great! Nice one. Thank you @coonsgm ! :cheers: