RE: [Development] Lighting update - meeting report

["Brian G. Reynolds" <brian.g.reynolds@xxxxxxx>]

Guy's I have t  admit that I understood absolutely NONE of this! but it did
sound like you are all doing a very good job, well done.

My offer still stands of some dosh though.

Thanks,

B.

> -----Original Message-----
> From: Dr John Tankard [mailto:john@xxxxxxx]
> Sent: 05 July 2001 07:56
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] [Development] Lighting update - meeting report
>
>
> Hi all,
>
> Just a update as a result of a YM session last night:
>
> Present Keith, Stuart, John
> Apologies Kieran (out with Madonna)
>
> Kicked of with a update, the existing prototype is being ported
> from a 16C65
> t  a 16C63 this will reduce the cost and size of the final version.
The
> software side of the main routines is now complete and the prototype
> (currently residing on a PICDEM-2 demo board) is performing the
dimming
> functions t  fire a triac (actually 8 all at once). All the work has
been
> done using a ICEPIC but it is not anticipated that there will be any
> problems switching t  physical pic except changing some fuse settings.
The
> current board is running at 10Mhz but I hope t  reduce this t  4Mhz.
>
> Next where t  go next. Keith will be receiving the circuit
> diagram t day (if
> I can find it) of the prototype triac dimmer s  he can work on
> improving the
> design. next t  be discussed was how we operate the dimmer, there
> will be 3
> interface types:-
>
> 1)Rabbit t  allow for control over TCP/IP (No work has started on
> this yet)
> 2)Simple contact closure switches
> 3)Remote Keypads (lots of possibilities here)
>
> This approach gives allow it t  be used by both people who have
> 1.5 t&e home
> run from light switches or people who have CAT5 t  the switches, or a
> mixture of the two
>
> The keypads would work on RS485 which would allow more than one for
each
> dimmer pack, each keypad would have a minimum of one 12c508 or similar
t
> handle the conversation with the 16C63 back in the dimmer.
>
> Keith had a brilliant idea about how t  simplify the situation
> with contact
> closure users, we would mount the 12c508's on the motherboard of
> the dimmer
> and run the 1.5mm t&e back t  the dimmer pack, the 12c508 would
then still
> talk with the master pic on the RS485 bus thus making the
> programming of the
> 16c65 much simpler and it would mean that the same motherboard
> could be used
> for both applications just by adding the extra 12c508's for home
> run 1.5 t&e
> operation
>
> There is quite a lot of work now t  be done developing this part of
the
> system in terms of programming
>
> Next meeting date t  be confirmed but likely t  be toward the end of
the
> month
>
> IF anyone has a wish list of features they would like/dream of in
> the dimmer
> could you please email me off list and I will repost the full list t 
the
> group
>
> John
>
>
>
>
>
> ____________________________________
> Automated Home UK
> http://www.automatedhome.co.uk
> ____________________________________
>
> Your use of Yahoo! Groups is subject t  http://docs.yahoo.com/info/terms/
>
>




____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________

Your use of Yahoo! Groups is subject t  http://docs.yahoo.com/info/terms/