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Experimenting with Sensor Strings
Posted: Thu Oct 25, 2018 8:37 pm
by G4MHJ
I am trying to understand the way to format sensor strings to produce meaningful outputs such as used in Twitter Feeds.
With Twitter being somewhat erratic of late is there anyway of adding a string somewhere else to show an immediate result.
With the help from another member I already have this string.
[hh]:[mm] Baro [thb0press-act] hPa | Temp [th0temp-act=C.1:--] °C | Hum [th0hum-act=.0:--]﹪| Wind [wind0dir-act=nldir:--] [wind0wind-act=bft.0:--] Bft | Rain Today [rain0total-daysum] mm. | Wind Gust [wind0dir-act=nldir:--] [wind0wind-max60=kmh.1] kmh. | Wind Chill [wind0chill-act]°C |
Although I use metric units I prefer to have Wind data in mph so that is one area I am trying to understand.
Re: Experimenting with Sensor Strings
Posted: Thu Oct 25, 2018 10:13 pm
by Mattk
Check out this page
https://www.meteobridge.com/wiki/index.php/Templates and note the general format is sensor-selector=converter.decimals:replacement see the Convertor section down the page a bit
With say the wind then the following will display/convert wind speed (max60, max over last 60 minutes) to Km per hour [wind0wind-max60=kmh.1] kmh, if you change it to [wind0wind-max60=mph.1] Mph then you will get max wind speed in miles per hour
Re: Experimenting with Sensor Strings
Posted: Sun Oct 28, 2018 12:10 pm
by G4MHJ
I have now moved on to creating and editing a mydata.http file as per the Wiki.
I have this experimental template as
[DD].[MM].[YYYY] [HH]:[mm][APM]
Temp [th0temp-act]°C ([th0temp-dmin]°C/[th0temp-dmax]°C)
Hum [th0hum-act]%
This is producing

- Screenshot 2018-10-28 at 10.00.38.png (17.65 KiB) Viewed 3429 times
Not sure why I am seeing strange characters though.
I am using a MacBook Pro, editing the my data.http direct through the network with either TextEdit or TextWrangler (same result).
Is there a way of avoiding this (A^) thing?
Re: Experimenting with Sensor Strings
Posted: Sun Oct 28, 2018 12:35 pm
by Mattk
Some templates based on character sets will handle characters such as the ° symbol others will not and there appears quite a few different variables with this and in some respects can be affected by browser versions, email versions and the like.
In your example and being HTTP format then I would leave out the decimal symbol as it is rather erratic, if this was an email template then it would work fine.
Re: Experimenting with Sensor Strings
Posted: Mon Oct 29, 2018 1:16 pm
by G4MHJ
I sorted the strange character thing - thanks.
Can I ask some more questions please.
In my Mydata.http I have an output of
Weather Data from the Erith Weather Station
29.10.2018 11:03AM
Temp 8.5C (High 8.4C/Low 2.6C)
Temp 8.5C (High 8.4C @ 20181029105754/Low 2.6C @ 20181029064524)
Dew Point 3.9C
Hum 73.0%
Wind 0.0 mph NE
Wind Chill 8.5C
Rain Today 0.0 mm/0.0 mm/hour
Baro 1002.4 hPa
Baro at Sea Level 1008.1 hPa
Solar Radiation 397.0 W/m2
Solar maximum possible 343 W/m2
UV Index 1.2
Sunrise 06:48
Sunset 16:39
Last Data 6
Last Good Data 11
(D)ay (N)ight Flag D
At this stage some of these lines are just experimental to see what is possible.
On the 2nd Temp line I would like to see @ 10:29AM rather than the full date & time string - is that possible?
The Solar Max statement is obviously wrong somewhere but I am not too worried about that at present.
I attach my screenshot of the template

- Screenshot 2018-10-29 at 11.05.02.png (116.65 KiB) Viewed 3411 times
Re: Experimenting with Sensor Strings
Posted: Tue Oct 30, 2018 5:44 am
by Mattk
Yes see the "Decimals" section near bottom of following link re formatting Date/Time etc
https://www.meteobridge.com/wiki/index.php/Templates
Re max possible solar for the day, do you have valid Latitude/Longitude set as well as pressure data available?
Re: Experimenting with Sensor Strings
Posted: Tue Oct 30, 2018 1:47 pm
by G4MHJ
Thanks for the Decimal hint.
Temp [th0temp-act]C (High [th0temp-dmax]C @ [th0temp-dmaxtime.ij:--=utc]:[th0temp-dmaxtime.kl:--=utc]/Low [th0temp-dmin]C @ [th0temp-dmintime.ij:--=utc]:[th0temp-dmintime.kl:--=utc])
This gives me
Temp 8.2C (High 8.3C @ 11:31/Low 4.6C @ 00:35).
Getting the idea a bit more now.
I have Lat/long set up and I checked via the url link on system tab. I might still have a baro error. My Console is giving 993.00mb (with no correction) and MBPro is showing 988.4mb. I guess the idea is to apply an offset to MB Pro due to internal heat.
Re: Experimenting with Sensor Strings
Posted: Tue Oct 30, 2018 10:16 pm
by Mattk
Check your station Altitude on the Station tab>Local Settings before changing any corrections