TW523 X-10 Gadget
24-Jul-91 18:35:54
Sb: #12307-TW523 X-10 Gadget
Fm: Roy S. Laufer 72435,1025
To: Greg Halper 73167,3442
Home Control Concepts sells them (unfortunately they have a $100 minimum
purchase, but one can always use some extra appliance modules). The CP290
is child's play compared to the TW523. The CP290 takes standard hexcode
output via a standard RS232 interface at 600 baud with simple checksum's to
deal with. I've wriiten (and uploaded) simple ARexx scripts that when
utilized with NazCron (or similar programs) can control all X-10 modules.
Unfortunately it can not sense external X-10 signals by other devices. The
TW523 can receive X-10 signals as well as transmit, but it is MUCH more
complex. Inorder to transmit it must sense the zero point of the AC signal
and use it to generate a complex series of syncronized high or low bit
strings. Receiving is even more difficult. It must be possible to poll
the devices output for a signal, then syncronize it to the zero point of
the AC cycle and decode it into the housecode and device code. The package
came with some broad information and a library that can be linked with PC
code. The library is interrupt driven and runs in the background, and
unfortunately is VERY IBM compatible specific. I would imagine it would
require a rather sophisticated programmer, and some very low level software
that comes close to the hardware. A feat I think I'm not anywhere ready
for. It would require the expertise needed to design a device handler. If
you think that you're up to the task, you can e-mail me your address and I
will xerox the technical information.