🚀 go-pugleaf

I don't know of one but I am interested in getting such a capability myself.
For $20 I may want to buy one of the units "on spec" as you did.

Also, I may be able to write a suitable program or contribute to the writing
thereof.  It should ideally run in a cartridge so you don't need a disk drive
for the security system.  It would be even better if it didn't need an RS-232
interface.  The joystick ports on the Atari can be used for both input and
output, and the serial I/O port can be converted into an RS-232 port with the
addition of a couple of level translator chips (that's what an R:verter is,
folks).

Please post the phone number and address of DAK and the catalog date and order
number of this BSR gadget!!!

Is anyone else out there in net-land interested in collaborating on the design
of a cheap BSR security system controller package to run on a bare bones 800XL
with no disk drive and no 850 interface?  At last report the XL is going for
$69.95 by itself.

-John Sangster
jhs@mitre-bedford.arpa