RE: Re: [Development] Lights, using two micros.

["Keith Doxey" <ukha@xxxxxxx>]

Its easier to have 4 different PIC programs set to Codes 1,2,3,4 and people
order

Dimmer Module "A"
Dimmer Module "B"
Switch Module "C"

etc.

Having them all listening to the same serial line means that ALL LIGHTS ON
is easy. You only need to send it over 1 serial line because all devices
would be listening for <myCode> and <broadcast> messages.

Keith

> -----Original Message-----
> From: Dr John Tankard [mailto:john@xxxxxxx]
> Sent: 03 June 2001 12:38
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: [Development] Lights, using two micros.
>
>
> --- In ukha_d@y..., "Keith Doxey" <ukha@d...> wrote:
> > Individual dimmer modules could be a great way to go.
> >
> > Onboard 12C508.
> >
> > 8 pins - 2 for power leaves 6.
> >
> > a.	serial input
> > b.	Relay Output
> > c.	Triac Opto drive
> > d.	Zero cross detect
> > e.	Address 0
> > f.	Address 1
> >
> > Allows 4 different PIC addresses on one serial line from Rabbit
> > PIC 12C508 or 12C509 is about 70pence. It would do almost all the
> work in
> > the dimmer.
> I could implement several serial ports on a Rabbit port so each
> dimmer has its own serial port, which would free up the two address
> lines. Or i could gate the zero cross so that a powerup i assign a
> address one at a time. Ie open up zero cross, that module then
> listens for a address on the serial line and stores it in ram.
>
> Just a idea
>
>
>
>
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