[OpenTRV-dev] Getting some OEM stuff

[Bo Herrmannsen]

Morning Kevin

Its not on purpose that I pester you so much about this, its more that i'm
just a 2nd rate PCB monkey and not a very good programmer :-D

But it makes sense to go for 868, i did not think of the conrad valves.

Logging this morning heat up of hot water to arduino serial console and
then my plan is to get the 3 CT's i have back in the fuse box ( they barely
fit)

is my logic ok here;

1 emon TX v2 should cover all i need in utility closet:


heat meter with 2 ways IR com (2 digital pins)
water meter with bouncy reed switch (1 digital pin)
electricity with 3 ct's and one AC

if any pins left then i allready have one DS18B20 chip in the top pocket of
the hot water cylinder


can one emon TX do the job or do i need 2?




2014-09-06 8:54 GMT+02:00 Kevin Wood <EMAIL ADDRESS HIDDEN>:

> Hi Bo,
>
> Been sidetracked onto getting a "boiler node" working for a second home
> before winter arrives (that's also loosely OEM / Opentrv related, so I'm
> going in the right general direction!) for the moment but I haven't
> forgotten about getting OEM working on the OpenTrv!
>
> I would say go for 868, on the basis that the OpenTRV stuff is fixed at
> this due to the rad. valves. That said, the OEM stuff I'm playing with is
> 433, due to some other requirements I have.
>
> Best Regards
>
> Kevin
>
>
> On 05/09/14 20:12, Bo Herrmannsen wrote:
>
>> Just so i dont shoot myself in the foot, but what freq should i choose
>> when getting OEM stuff?
>>
>> I want to plan ahead so that the RFM12Pi module from OEM also can be
>> used to talk to OpenTRV units...
>>
>> I have just figured how to read out my Heat Meter from the IR optical
>> interface which is a 2 way port that requires that you send data and
>> then get data back... so it was not as easy as you would expect...
>>
>> now my next step is to get ready to log the data, for that i need a pi
>> of course and then the radio module and their emontx v3... with some
>> clever thinking that emontx should be able to monitor both water,
>> electricity and heat at the same time...
>>
>>
>> @Kevin: any progress on talking to OpenTRV units from OEM ?
>>
>> --
>>
>>                   |||||
>>                 @(~Ô^Ô~)@
>> -------------oOo---U---oOo-------------
>> |                                     |
>> |  Bo Herrmannsen                     |
>> |                                     |
>> |                                     |
>> | "blessed are the "cracked",         |
>> |  for its they who let in the light" |
>> |                         Ooo         |
>> |_________________ooO____(   )________|
>>                   (   )    ) /
>>                    \ (    (_/
>>                     \_)
>>
>>
>>
>>
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-- 

                 |||||
               @(~Ô^Ô~)@
-------------oOo---U---oOo-------------
|                                     |
|  Bo Herrmannsen                     |
|                                     |
|                                     |
| "blessed are the "cracked",         |
|  for its they who let in the light" |
|                         Ooo         |
|_________________ooO____(   )________|
                 (   )    ) /
                  \ (    (_/
                   \_)
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