Re: thermometers?

[Charles Sullivan <cwsulliv@xxxxxxxxxxxx>]

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.