[OpenTRV-dev] Radio fun!

Damon Hart-Davis dhd at exnet.com
Sun Jul 12 21:15:40 BST 2015


Hi,

In particular the slice that we’re using with the 0.1% max duty cycle...  I could try to dig out the Ofcom regs!  (IR2030/1/16?)

Rgds

Damon


> On 12 Jul 2015, at 21:08, Kevin Wood <kevin at the-wood-family.com> wrote:
> 
> Hi Damon,
> 
> I haven't checked the rules for 868 MHz in case there's anything that
> would prohibit it. I will see what I can find out.
> 
> Kevin
> 
> 
>> OK!
>> 
>> Is it legal on the frequency that we are using (or one that we can get to
>> quickly with a few register changes)?
>> 
>> Rgds
>> 
>> Damon
>> 
>>> On 12 Jul 2015, at 20:59, Kevin Wood <kevin at the-wood-family.com> wrote:
>>> 
>>> Hi All,
>>> 
>>> I've used the "Jeelib default" mode of FSK signalling at 50kbps around
>>> the
>>> house, albeit at 433 MHz, and it's reliable. I haven't been tracking
>>> missed packets but it's certainly workable over domestic distances. So,
>>> a
>>> ten fold increase in data rate might be available. Maybe more.
>>> 
>>> Best Regards
>>> 
>>> Kevin
>>> 
>>>> Hi,
>>>> 
>>>> For a project going in this month based on some of the OpenTRV tech, we
>>>> have some exciting radio juggling to do, see here:
>>>> 
>>>> https://sourceforge.net/p/opentrv/code-0/HEAD/tree/trunk/Arduino/COHEAT2015/RadioThoughts20150711.txt
>>>> 
>>>> All comments, suggestions, etc, welcome.
>>>> 
>>>> I’m not worried whether we can do it, I’d simply like to maximise
>>>> reliability and simplicity (and elegance),
>>>> and minimise my pain coding it up.
>>>> 
>>>> Oh, and steal the lessons for Launchpad using this as another vertical,
>>>> eg
>>>> with denser deployments than typical domestic.
>>>> 
>>>> Rgds
>>>> 
>>>> Damon
>>>> _______________________________________________
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>>>> OpenTRV-dev at lists.opentrv.org.uk
>>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>>>> 
>>> 
>>> 
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>> 
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> 
> 
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