Re: Suggestion for battery powered RF controlled relay needed..

[Tim Hawes <timsyahoo@xxxxxxxxxxxxxx>]

I wonder whether a 12v doorbell battery would have enough ooomph /
last long enough to power the 12V one?

Does the cable for the thermostat have any spare cores?
And I did mean to ask in the first reply, what is peculiar about the
stat that requires the override to be at the room end rather than the
boiler end?

How about these two - they're perhaps closer to what you were after?
(I didn't have my CPC catalogue with me earlier :-)  )
<http://cpc.farnell.com/jsp/level5/module.jsp?moduleId=3Dcpc/345363.xml>
<http://cpc.farnell.com/jsp/level5/module.jsp?moduleId=3Dcpc/406456.xml>

HTH,

Tim.



On Fri, Dec 4, 2009 at 2:23 PM, Kevin Hawkins
<yahoogroupskh@xxxxxxx> wrote:
> Thanks Tim - exactly what I need except not battery powered . =A0I
have n=
o
> power available at the receiver.
>
> =A0 cheers Kevin
>
> Tim Hawes wrote:
>> Kevin,
>>
>> A few options here, not sure if they meet all your requirements
though:
>> <http://cpc.farnell.com/jsp/search/browse.jsp?N=3D411+1002594+500001>
>>
>> HTH,
>>
>> Tim.
>>
>> On Thu, Dec 3, 2009 at 1:39 PM, Kevin Hawkins
>> <yahoogroupskh@xxxxxxx> wrote:
>>
>>> Hi
>>>
>>> =A0 I have a need for a small battery powered box to fit on
the wall th=
at
>>> will provide a relay or dry contact closure output but is
controlled by
>>> RF - no local power is available for this. =A0. It needs to be
>>> cosmetically nice as it is to be sited adjacent to a
thermostat where i=
t
>>> will provide an overide function . =A0The battery lifetime
should be go=
od
>>> so an open collector or bistable relay is preferred.
=A0Perhaps a Zigbe=
e
>>> or Z-Wave solution for operation confirmation or alternatively
somethin=
g
>>> where RFXCOM could send the RF commands - or failing that
anything that
>>> could be automated in some way.
>>>
>>> =A0 Any suggestions ?
>>>
>>> =A0 =A0TIA K


------------------------------------