Re: HAI Omnistat (RS232 controllable thermostat)

No need for all of that. I already wrote my eventghost driver and I
have two way communication with
my commandfusion interface to my omnistat controller.

The only issue is that it's half duplex so it makes communication more
difficult with timing issues
because the omnistat will not receive any commands while it's
communicating it's ack response. The delay
is variable based on how many registers I try to write with a command
so it took quite a bit of per command
expirimentation to shave my delay timing down on my commands to keep
them as short as possible while
not sending the next command during an ack response from the
thermostat.

It's pretty fluid now and rarely misses a button press on the remote
but it can happen if you do multiple button
presses too fast.

I just don't like having to spend 20(+) hours writing a driver for a
device because the communication protocol
and documentation require a whole lot of expirementation on my end to
figure out exactly what each register
is supposed to do.

It only took three or four hours each to write my Onkyo, Denon,
Pioneer Elite, LG (ect) drivers because their documentation
is clear and concise even though some of those devices are infinately
more complex then a household thermostat.

On Feb 25, 12:23 am, stbluesrul <paul.l.cra...@gmail.com> wrote:
> Go with zwave and zwave commander from Melloware.  You can use
> commandfusion to send HTTP GET to zwave commander and in turn control
> the thermostat.  Just no two way feedback.  You'll need the zwave
> commander iPhone app for that.
>
> On Feb 24, 10:11 am, Fiasco <dgvoll...@gmail.com> wrote:
>
>
>
> > Another knock on the HAI thermostat.   It's not full duplex and it
> > won't receive a new command until it has responded with an ack
> > message.
>
> > The protocol documentation is crap with poor descriptions of the
> > registers.
>
> > I would look for alternates if you want a network or serial
> > controllable thermostat.
>
> > On Feb 23, 1:58 am, Fiasco <dgvoll...@gmail.com> wrote:
>
> > > I hate protocols like this because you HAVE to have some kind of
> > > control device between CommandFusion and the Thermostat.
>
> > > Obnoxious nasty dirty little protocol.
>
> > > On Feb 22, 11:40 pm, Jarrod Bell <jar...@guilink.com> wrote:
>
> > > > yuck... man I hate the HAI protocols. Nasty!
> > > > Goodluck with it Fiasco!
>
> > > > Jarrod
>
> > > > On Feb 23, 4:27 pm, Fiasco <dgvoll...@gmail.com> wrote:
>
> > > > > I am writing a plugin for the HAI Omnistat series of thermostats for
> > > > > eventghost.
>
> > > > > It is an obnoxious little RS232 protocol (like DirecTV) but I'm
> > > > > gradually assuming control over more and more of the functions and
> > > > > feedback of the device.
>
> > > > > Thread is here
>
> > > > >http://www.eventghost.org/forum/viewtopic.php?f=10&t=2335
>
> > > > > Will post some screenies of my CommandFusion interface for it when I
> > > > > get it made.- Hide quoted text -
>
> > > > - Show quoted text -- Hide quoted text -
>
> > > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

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