[OpenTRV-dev] REV7 board working and talking!

[Damon Hart-Davis]

Hi,

> On 5 Jan 2015, at 18:19, Bruno Girin <EMAIL ADDRESS HIDDEN> wrote:
> 
> Right, so let me try to decode this:
> T|C16 is (measured) temperature in Celsius with hexadecimal fraction.

This is just Celsius temperature in 16ths.

(I should probably to make that T|Cel16 eventually to be more compatible with UCUM.)

> vC|% and v|% are probably the valve opening percentage but what are the 2 values?

v|% is the current open percentage.

vC|% is the *cumulative* movement which allows me to monitor and optimise noise and battery consumption, and I have a nominal budget of 400% (eg the equivalent of two full opens and closes) each day for now. Happily I’m in that ballpark.  (See the entry for 2015/01/02 here http://www.earth.org.uk/OpenTRV-archive.html#update-archive for example.)  vC|% rolls at a high enough number (8191 max value for now) that it should be obvious when a reset or roll has happened.)

> tT|C is the target temperature in Celsius.

Yes, and should probably become tT|Cel

> No idea what O and vac|h are.

Occupancy (3 definitely, 2 probably, 1 unlikely, 0 not reported).

Room vacancy in hours.

> 
> Also, if % indicates a percentage, why do we have a value of 196 for vC|% in the last record?

Because it’s cumulative, even if counter-intuitive.

And for once I can legitimately demand that my valves give me 400%!

Rgds

Damon


> 
> Bruno
> 
> 
> Bruno Girin, CTO, EnergyDeck Ltd
> Email: EMAIL ADDRESS HIDDEN, Mobile: +44 7990 545 927, Tel: +44 20 3108 9365
> Web: www.energydeck.com, Twitter: @EnergyDeck
> Address: IDEALondon, 69 Wilson Street, Shoreditch, London EC2A 2BB, UK
> 
> 
> On 5 January 2015 at 18:05, Damon Hart-Davis <EMAIL ADDRESS HIDDEN> wrote:
> After a small hardware mod (around the 32768Hz crystal) the REV7 production board is working!
> 
> (I haven’t tried the motor stuff yet, note.)
> 
> First (logged, JSON stats) radio comms for the record (I rebooted it after the first one, and turned off privacy after the second one)!
> 
> [ "2015-01-05T17:15:53Z", "", {"@":"dd82","+":0} ]
> [ "2015-01-05T17:16:23Z", "", {"@":"dd82","+":0} ]
> [ "2015-01-05T17:33:27Z", "", {"@":"dd82","+":1,"T|C16":285,"O":3,"vac|h":0} ]
> [ "2015-01-05T17:39:29Z", "", {"@":"dd82","+":2,"vC|%":100,"v|%":100,"tT|C":27} ]
> [ "2015-01-05T17:42:27Z", "", {"@":"dd82","+":3,"T|C16":286,"O":3,"vac|h":0} ]
> [ "2015-01-05T17:45:27Z", "", {"@":"dd82","+":4,"v|%":4,"vC|%":196,"tT|C":7} ]
> 
> Note that this means that most subsystems are working including the PCB antenna, which is a huge relief!
> 
> Rgds
> 
> Damon
> 
> 
>