Yes I produced a REXX script which I use in conjunction with a program called KEDIT to grab the last line of the dat file and reformat it for UIVIEW. I haven't published it because so far as I know KEDIT is no longer available and parts of the script use KEDIT editing functions. The php script extract I've shown on.. G6KIZ Watson W-8681 W8681 Wireless Weather Station reformats what is essentially the .dat file data into html.

I had to install Python scripting so I could write a noddy channel switching script for wxtoimg to control my R2ZX because the program managed to confuse the simple radio interface causing satellite passes to be missed so may one day convert my EasyWeather to UIVIEW script to Python and then I'll publish it. I don't really want to encourage people to buy this unit though as my personal view is that it is so poor it would be better to pay extra for a decent weather station.

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Nice bit of coding there Kwik, I was thinking of asking someone for a copy of their .dat file so I could write a php 'scraper' - but you've gone and done the deed.

Well done !

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Better check that it really is the dat file layout. From memory all I was doing was truncating the dat file to the latest few lines and chucking out any lines with invalid/missing data. I don't think I reformatted anything but can't guarantee that.

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Have you (or anyone else), got a breakdown of what each bit of data is in the .dat file ?

And what, if anything, may be user format in it ?

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KEDIT is still available:-

Mansfield Software Group

and REXX from

rexx.org - Mark Hessling's Home Page

-So I would be very interested in taking a look at copies of your scripts etc.. Could you possibly email them please? My address is harry.m1byt@NOSPAM.tiscali.co.uk -remove the obvious to reply.

I must say I have no complaints at all about the system, that is if I ignore the rather poor contrast of the display. For its cost (£65-60 delivered from ebay) it is producing some fairly good data, comparable to that produced by an official RAF station a couple of miles from my location. I have had the EW software running for almost a week now without any problems. I'm using the software downloaded from Fine Offset Eletronics Co.,LTD.
Which the above site suggests is V4.12, but which seems to be V2 if you click the 'about'.

It seems to be using what ever type of units the LCD is set to use and is a comma delimited file.

Copied below is a single complete record, just as it appears in the .dat file:-

1, 2008-06-29 15:58:52, 2008-06-29 15:53:52, 5, 65, 20.4, 77, 17.2, 13.2, 17.2, 1000.3, 1013.2, 1.7, 2, 3.4, 3, 8, S, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 000100, 05 41 CC 00 4D AC 00 13 27 11 22 00 08 00 00 00 ,

I've only spent 30 minutes looking at it, so please excuse any errors...

1. Record number
2. date + time stamp
3. date + time stamp (twice, there must be a reason for this?)
4. is probably the reporting interval
5. Indoor humidity
6. Indoor temperature
7. Outdoor humidity
8. Outdoor temperature
9. ?
10. ?
11. Abs pressure
12. Rel pressure
13. ?
14. ?
15. ?
16. ?
17. ? (Wind speed?)
18. Wind direction
19. ? Contains none text characters.
-
20. ? 0.0 \
21. ? 0.0
22. ? 0.0
23. ? 0.0 - These never seem to vary!
24. ? 0.0
25. ? 0.0 /
-
26. ?
27. ?
28. ?
29. ?
30. ?
31. ?
32. ?
33. 33. + 34 Could perhaps be the DCF time +date?
34. ?

You can tap into the data as it comes in from the USB port with SnoopyPro.exe

This part (the hex data)>
000100, 05 41 CC 00 4D AC 00 13 27 11 22 00 08 00 00 00 ,

Seems to be the only data I can actually see being sent from the display unit to the PC via the USB link. So from that, the rest of the data must be being decoded by the software to be placed in the easyweather.dat file.

The date + time stamp in the file at the star of each line is obtained from the PC's internal clock.

Marks (Kwikbreaks) php scraper suggests the following:

2/ date / timestamp (ISO format)

7/ outdoor humidity
8/ outdoor temp. (is this always C or user set ?)

12/ baro - relative (is this always hPa or user set ?)

13/ windspeed - appears to be metres per sec

15/ windspeed GUST - appears to be metres per sec

17/ wind direction - 16 options in your line 8 = S(outh)

22/ hourly rain - appears to be mm
22/ daily rain (? or 24 hr) - appears to be mm

Looking at the line I would expect:

2/ date / time stamp previous record
3/ interval as you suggest

9/ Dew Point (always C ?)
10/ Windchill OR Heat Index OR combination (feels like)

13 & 14/ rate of baro change ? - seen any minus numbers ?

Can't tell from record #1, but some of the others maybe Min. Max or running totals.

...... keep the info coming guys

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OK, see if we can improve on this....

The link below shows a screen grab of the EasyWeather display, which matches (should match) the final line of the data which follows it. New Page 1

Notice the bottom panel displays rainfall and at the very bottom that the Max figures which I am as yet unable to find a method to clear to 0.00 (reset to zero).

I have added a line feed in between each data block to make it a little easier on the eye.

305, 2008-06-30 17:31:52, 2008-06-30 17:16:46, 5, 55, 21.5, 48, 21.6, 10.1, 21.6, 1005.1, 1016.7, 1.0, 1, 2.4, 2, 4, E, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001400, 05 37 D7 00 30 D8 00 43 27 0A 18 00 04 00 00 00 ,

306, 2008-06-30 17:31:52, 2008-06-30 17:21:46, 5, 55, 21.6, 48, 21.2, 9.8, 21.2, 1005.2, 1016.8, 1.0, 1, 2.4, 2, 10, SW, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001410, 05 37 D8 00 30 D4 00 44 27 0A 18 00 0A 00 00 00 ,

307, 2008-06-30 17:31:52, 2008-06-30 17:26:46, 5, 55, 21.7, 48, 21.1, 9.7, 20.5, 1005.3, 1016.9, 2.0, 2, 3.7, 3, 8, S, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001420, 05 37 D9 00 30 D3 00 45 27 14 25 00 08 00 00 00 ,

308, 2008-06-30 17:31:52, 2008-06-30 17:31:46, 5, 54, 21.8, 49, 20.9, 9.8, 20.9, 1005.1, 1016.7, 1.4, 1, 2.4, 2, 12, W, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001430, 05 36 DA 00 31 D1 00 43 27 0E 18 00 0C 00 00 00 ,

309, 2008-06-30 17:32:07, 2008-06-30 17:32:07, 5, 54, 21.9, 49, 20.7, 9.6, 20.7, 1005.2, 1016.8, 1.7, 2, 3.1, 2, 8, S, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001440, 05 36 DB 00 31 CF 00 44 27 11 1F 00 08 00 00 00 ,

310, 2008-06-30 17:37:05, 2008-06-30 17:37:05, 5, 54, 21.9, 48, 20.9, 9.5, 20.9, 1005.2, 1016.8, 1.7, 2, 3.7, 3, 10, SW, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001450, 05 36 DB 00 30 D1 00 44 27 11 25 00 0A 00 00 00 ,

311, 2008-06-30 17:42:02, 2008-06-30 17:42:02, 5, 53, 22.0, 48, 21.0, 9.6, 21.0, 1005.1, 1016.7, 1.7, 2, 4.1, 3, 10, SW, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001460, 05 35 DC 00 30 D2 00 43 27 11 29 00 0A 00 00 00 ,

I notice for the first time since yeasterday, when I moved the sensors around, that I am getting slightly less than perfect reception from the sensors. I moved the combined transmitter + temperature sensor to a location which offered it some better shade - behind the far wall of the garage. Frame 94 along with three other frames shows some bad data - indicated by '---'

94, 2007-06-29 23:37:03, 2008-06-29 23:37:03, 5, 45, 23.7, ---, ---, ---, ---, 1002.7, 1014.3, ---, ---, ---, ---, ---, ---, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 1, 0, 0006D0, 05 2D ED 00 FF FF FF 2B 27 FF FF FF 82 00 00 40 ,

So checking the EasyWeather.dat file out with Notepad seems to be the way to determine how good or bad your reception is between display and the remote sensors.

I see a bit of an anomoly there...

The screen grab shows the wind from the NW and looking at the bottom says '(total records 311)' - but record 311 shows the wind as being SW.

312 matches the wind direction, so I have copied it below...

312, 2008-06-30 18:16:13, 2008-06-30 17:51:13, 5, 53, 22.0, 48, 21.2, 9.8, 21.2, 1005.1, 1016.7, 1.0, 1, 2.0, 2, 14, NW, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0, 0, 0, 0, 0, 0, 0, 0, 001470, 05 35 DC 00 30 D4 00 43 27 0A 14 00 0E 00 00 00 ,