Re: ActiveHome and DST "tricks"?

[Rich <rich@xxxxxxxxxx>]

OK, my thinking was that the CM11A will apply the dusk/dawn
calculation to whatever time it has.  If you tell it is 6pm and dusk
is 7pm then it will activate at 7pm.  It doesn't need to know DST
because it isn't calculating dusk (or dawn) at DST time, rather it
uses whatever time it has.

I could be wrong on this, so I will check my unit tomorrow and see if
it switches my lights on at dusk.  I currently have DST unchecked and
have sync' ed my CM11A with my PC which has DST.

Rich



On Wed, 8 Apr 2009 16:27:08 -0700 (PDT), MPSAN <empea3@xxxxxxxxx>
wrote:

>On Apr 6, 5:59 pm, Rich <r...@xxxxxxxxxx> wrote:
>> I have the same issue as you.
>>
>> My solution is to forget the DST setting and simply update the time in
>> the spring and fall.  I know it defeats the purpose, but I couldn't
>> resolve the time changes when trying to use the DST feature.
>>
>> Maybe someone else will have a better solution.
>>
>> On Fri, 3 Apr 2009 12:21:32 -0700 (PDT), MPSAN <emp...@xxxxxxxxx>
>> wrote:
>>
>> >Hello ALL:
>>
>> >I was wondering if there were any "tricks" to using ActiveHome 3.42
>> >and DST.
>>
>> >Here is the issue.
>>
>> >I put in the DST dates. DST is required if the Dawn/Dusk times are
>> >going to be correct. However, once DST is in effect, it adds 1 hour to
>> >the system time. The software should realize that if DST is already in
>> >effect, that the system time is already correct, and the time uploaded
>> >to the CM11A would be the same as the System time!
>>
>> >I can, of course uncheck DST, but then the CM11A clock is correct but
>> >Dawn/Dusk is wrong.
>>
>> >I get around this by keeping DST checked and before any updates to the
>> >CM11A I set the system time back 1 hour. This is a pain to remember
>> >and if I forget the lights come on 1 hour early! Anyone know if there
>> >was ever a fix to this, a way around this, or another program I should
>> >try? This is, after all, only a CM11A and has very little memory. I
>> >mention this as it does not make sense to get a program like HomeSeer
>> >that cost a lot more than the CM11A.
>>
>> >TIA
>
>Rich, the problem is that if you ignore DST settings then Dusk/Dawn
>will be wrong. I think that what I am doing is the only work around.
>ie: set system to 1 hour early and then update CM11A with DST set.
>Then the CM11A clock is correct and dusk/dawn is good. After I
>disconnect the CM11A I then set the XP System clock ahead 1 hour again
>and all is OK. It is OK if I do not connect the CM11A again and do an
>update and forget the above "fix".