Re: thermometers?

[Joe Pfeiffer <pfeiffer@xxxxxxxxxxx>]

Charles Sullivan <cwsulliv@xxxxxxxxxxxx> writes:

> On Sun, 13 Sep 2009 20:08:54 -0600, Joe Pfeiffer wrote:
>
>> Charles Sullivan <cwsulliv@xxxxxxxxxxxx> writes:
>>
>>> On Sat, 12 Sep 2009 20:25:02 -0600, Joe Pfeiffer wrote:
>>>
>>>> Charles Sullivan <cwsulliv@xxxxxxxxxxxx> writes:
>>>>>
>>>>> I use a bunch of Oregon Scientific wireless temperature and
>>>>> temperature/ humidity sensors + an RFXCOM 433.92 MHz RF receiver +
>>>>> Heyu software (http://www.heyu.org) running on a Linux PC system.
>>>>
>>>> Is that the THGR268?  Might be the way to go...
>>>
>>> The THGR268 will work, up to 3 units.  Beyond that you'll need to
>>> select a different model which transmits at different intervals.
>>> Otherwise there will be signal corruption when 2 units repeatedly
>>> transmit at the same time.
>>>
>>> How many sensors do you expect to be using?
>>
>> Oops, thought I saw that it transmitted on a value change...  I'm
>> looking at roughly half a dozen.
>>
>> At the moment, putting a thermistor on an XBee module is looking like my
>> best option...
>
> You could add THGR800 for up to 3 more or RTGR328N for up to 5 more or
> THGR810 for up to 10 more.

Thanks -- that's very helpful!  But they don't seem to have anything
that looks like a permanent installation...
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)