22 Mar
2002
22 Mar
'02
5:33 p.m.
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
You mena it's beyond the ingenuity of these people who connect up
scanners/cameras/LCD panels/... to the ZX81 to add a serial port?
No, no, I meant a ZX81 doesn't have one built in. Of course we use the
Z80A-SIO (and -PIO). Modems were also commercially produced in the
mid-eighties which allowed a simple mod so they could also be used as
serial ports.
I've not tried it, but I can see no good reason
why you couldn't link up
just about any common serial chip/UART to the expansion connector, and
then buffer the outputs of that to/from RS232 levels.
It's been done any number of ways.
ZX-TEAM also has a ZX81-hosted BBS ;>)
Glen
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