I do it the dumb way. I have my sensors send data when they're ready. I have a service running on the weewx box that subscribes to the MQTT messages and writes them to a temp file. I modified the driver to read from the temp file. I check to see if the data is older than 20 minutes and ignore it if it is.
There's probably a proper way to do this, without editing driver code. On Fri, Mar 15, 2024 at 4:18 PM Greg from Oz <[email protected]> wrote: > My bme280 only does pressure and temperature. I have it on a sonoff SV. > What bme280 are you using? Do you have a part number? > I am getting the humidity and temp from the zigbee because it is in the > house and the bme280 is in the shed and it is hot in there but I can add > one for the house I guess? > I will see if I can get the same BME280 as you are using. > Do you have info where you bought it? > Thanks > > On Saturday 16 March 2024 at 10:10:57 UTC+11 Jimi Lawson wrote: > >> What device does your station/weewx run on, couldn't you connect the >> bme280 to it and use the temp/humidity/pressure reading from it ? that's >> what I do. >> >> On Friday 15 March 2024 at 21:21:37 UTC Greg from Oz wrote: >> >>> Thanks Tom. >>> >>> Probably not something I could do. I know nothing about python. >>> Maybe later when I have time to look at it again. >>> I will see if I can find a device that transmits in regular intervals. >>> >>> On Friday 15 March 2024 at 23:55:13 UTC+11 Tom Keffer wrote: >>> >>>> You have many single data points, separated with long stretches of >>>> nulls --- no lines. That's why line_gap_fraction isn't working. >>>> >>>> By design, WeeWX drivers don't cache data. See the guidelines >>>> <https://www.weewx.com/docs/5.0/custom/drivers/#general-guidelines> for >>>> writing drivers. >>>> >>>> However, you could write a simple service that retains the last value >>>> and uses it if a null value is seen. Perhaps up to a maximum time. But, >>>> there's nothing like that in WeeWX. >>>> >>>> On Thu, Mar 14, 2024 at 6:54 PM Greg from Oz <[email protected]> wrote: >>>> >>>>> Here is a snippet of the database: >>>>> select dateTime ,inTemp, inHumidity, pressure from archive where >>>>> dateTime >= 1710459900 ; >>>>> +------------+--------+--------------------+-------------------+ >>>>> | dateTime | inTemp | inHumidity | pressure | >>>>> +------------+--------+--------------------+-------------------+ >>>>> | 1710459900 | 23.99 | 54.019999999999996 | 968.3500000000003 | >>>>> | 1710460200 | NULL | NULL | 968.3142857142858 | >>>>> | 1710460500 | NULL | NULL | 968.3166666666667 | >>>>> | 1710460800 | NULL | NULL | 968.2166666666667 | >>>>> | 1710461100 | NULL | NULL | 968.1583333333334 | >>>>> | 1710461400 | 24.26 | 53.23 | 968.1000000000001 | >>>>> | 1710461700 | 24.5 | 53.34 | 968.0833333333335 | >>>>> | 1710462000 | NULL | NULL | 968.1416666666668 | >>>>> | 1710462300 | NULL | NULL | 968.0916666666667 | >>>>> | 1710462600 | NULL | NULL | 968.1285714285715 | >>>>> | 1710462900 | NULL | NULL | 968.225 | >>>>> | 1710463200 | 25.01 | 52.795 | 968.1666666666666 | >>>>> | 1710463500 | NULL | NULL | 968.1083333333335 | >>>>> | 1710463800 | 25.52 | 51.754999999999995 | 968.1357142857144 | >>>>> | 1710464100 | NULL | NULL | 968.1083333333332 | >>>>> | 1710464400 | NULL | NULL | 968.0916666666667 | >>>>> | 1710464700 | NULL | NULL | 968.0083333333332 | >>>>> | 1710465000 | 25.82 | 50.49 | 968.0142857142857 | >>>>> | 1710465300 | 26.03 | 50.535 | 967.9583333333334 | >>>>> | 1710465600 | NULL | NULL | 967.8333333333335 | >>>>> | 1710465900 | NULL | NULL | 967.8000000000001 | >>>>> | 1710466200 | NULL | NULL | 967.75 | >>>>> | 1710466500 | 26.54 | 50.095 | 967.6833333333334 | >>>>> | 1710466800 | NULL | NULL | 967.6916666666666 | >>>>> | 1710467100 | NULL | NULL | 967.6999999999999 | >>>>> | 1710467400 | NULL | NULL | 967.7500000000001 | >>>>> +------------+--------+--------------------+-------------------+ >>>>> 26 rows in set (0.000 sec) >>>>> >>>>> On Friday 15 March 2024 at 08:39:12 UTC+11 Tom Keffer wrote: >>>>> >>>>>> You may just have the option line_gap_fraction >>>>>> <https://www.weewx.com/docs/5.0/reference/skin-options/imagegenerator/#line_gap_fraction> >>>>>> set too low. >>>>>> >>>>>> On Thu, Mar 14, 2024 at 2:18 PM Greg from Oz <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Hi, >>>>>>> I have removed my fineoffset usb and replaced it with SDR but the >>>>>>> outside fine offset station doesn't sent inside temperature, inside >>>>>>> humidity or barometer. >>>>>>> >>>>>>> I have added a BME280 sensor and can get the barometer readings >>>>>>> every 30 seconds and that is working and graphing OK. >>>>>>> >>>>>>> I have a zigbee battery powered device that I am using to get the >>>>>>> inside temperature and inside humidity but I cannot get the graphs to >>>>>>> show >>>>>>> a solid line nor can I get the readings to consistently show on my web >>>>>>> page >>>>>>> because those readings come in a random times. >>>>>>> >>>>>>> Is there any way to make the readings "stick" until a new reading is >>>>>>> received so the graphs look right and the readings are always on the web >>>>>>> page? >>>>>>> >>>>>>> Look at the inside temperature graph on my web page to see what I >>>>>>> mean: >>>>>>> https://weather.ubeaut.work/ >>>>>>> >>>>>>> Thanks >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "weewx-user" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/weewx-user/555c8101-8f4f-45ad-8dc7-03a7b2fbb7ean%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/weewx-user/555c8101-8f4f-45ad-8dc7-03a7b2fbb7ean%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "weewx-user" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> >>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/weewx-user/53147a8b-34d0-49fa-ab86-78bf8c931029n%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/weewx-user/53147a8b-34d0-49fa-ab86-78bf8c931029n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/79dc9f68-8550-4906-a69c-c08f744a9609n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/79dc9f68-8550-4906-a69c-c08f744a9609n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Peter Quinn (415)794-2264 -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAA1SM2021iVn19WvfD6yud6bwi0haDGHbd4Dw-4A_ZB_ZqQ78g%40mail.gmail.com.
