Author Topic: Combining WeeWx and APRS  (Read 1705 times)

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Offline CW2274

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Re: Combining WeeWx and APRS
« Reply #25 on: May 13, 2020, 03:54:05 PM »
The Davis display head measures "inside" temperature with a poorly placed sensor somewhere in the body of the display unit. It's strange that they did that. In the past, it's always been 5-8 F high from the actual inside ambient, so I will also need to re-attach the little 40 mm fan that I'd placed over the rear vent holes on the display case to attempt to pull the inside-case temp down a bit to make it closer to inside room ambient.
The "display head" is referred to as a "console". As far as the inside temp, why don't you merely use the offset? The fan will do you little good getting an accurate ambient temp reading.

Offline N7UV

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Re: Combining WeeWx and APRS
« Reply #26 on: May 13, 2020, 10:28:25 PM »
Thanks - I didn't know I could program an offset. Is it linear? I'd much prefer that they provided an external temp sensor to plug in, but if that's the best that can be done, it's better than nothing.

Cheers and 73 - Jon N7UV

Offline CW2274

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Re: Combining WeeWx and APRS
« Reply #27 on: May 13, 2020, 11:12:25 PM »
Thanks - I didn't know I could program an offset. Is it linear?
Well, if you mean is it the same no matter what the temp is, yes. If you subtract 5F, it will be minus 5F no matter what the temp is.

See page 25.

https://www.davisinstruments.com/product_documents/weather/manuals/07395-234_IM_06312.pdf

Offline kq6up

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Re: Combining WeeWx and APRS
« Reply #28 on: December 01, 2020, 08:15:28 AM »
All the links for https://github.com/weewx/weewx/wiki/cwxn (CWXN) appear to be dead.  Has this function been incorporated in the main body of code for weewx?

-Chris KQ6UP

Offline WA4OPQ

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Re: Combining WeeWx and APRS
« Reply #29 on: December 01, 2020, 11:08:01 AM »
You can still download it here: http://lancet.mit.edu/mwall/projects/weather/releases/weewx-cwxn-0.4.tgz

But it has issues with rain accumulation and humidity. I install the above package then substitute a repaired cwxn.py file