RE: Audio Amplifiers DIY

["Shane Harrison" <shane.harrison@xxxxxxx>]

Hi Mark,

I have ethernet control of the Linet network hence no desire or need to
have
direct ethernet.

RS485 was an *easy* extension to what I am doing already since just
needed
to change PIC.

Cheers
Shane

> -----Original Message-----
> From: Mark Harrison [mailto:Mark.Harrison@xxxxxxx]
> Sent: Friday, October 18, 2002 8:41 PM
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Audio Amplifiers DIY
>
>
> Shane,
>
> I'd potentially be interested if it were xAP-controllable...
>
> ... that would, AIUI, suggest RS485. There are others far more
> technical than me who can explain why.
>
> .. have you considered, however, ethernet control?
>
> M.
>
> -----Original Message-----
> From: Shane Harrison [mailto:shane.harrison@xxxxxxx]
> Sent: 9 July 2002 17:04
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Audio Amplifiers DIY
>
>
> Hi there,
>
> Question for the Ians, Frank, Keith types out there in HA land.
>
> Intention is to distribute whole house audio speaker outputs from node
0
> (after considering all options).  I have had a 4 channel
amplifier design
> with digital volume control sitting around for awhile.  About
to
> lay it out.
> As some might remember I intend using Linet network for control.
>
> I already intend having a 16C620A PIC device on the card so I thought,
hey
> ... that has the same pinout as the 16F628 you xAP guys have been
raving
> about. The card is designed to plug into an edge connector (rack
mounted),
> why not run (in addition to the Linet control lines) a serial
> connection to
> the edge connector.  Would mean substituting the 16C620A with a
16F628 and
> using Maxim chips give RS232 or RS485 output to the edge
> connector. It might
> then be slightly useful to someone else - you never know.
>
> Now the questions.
> 1) Anyone actually interested ?
> 2) RS232 or RS485 ?
>
> Depending on the answers I'll send another email requesting some
design
> clarifications for 2) !
>
> Note at this stage I would only be implementing hardware support
> as I don't
> personally need the serial connections.
>
> Cheers
> Shane
>
>
>
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