You can use a BME280 sensor for the pressure. Here is one I use: https://www.amazon.com/Adafruit-BME280-Temperature-Humidity-Pressure/dp/B013W1AJUY/ref=sr_1_7?dchild=1&keywords=bme280&qid=1618020646&sr=8-7
I been using this driver for a couple of years without any issues on one of my RPIs. On Friday, April 9, 2021 at 3:57:59 PM UTC-4 [email protected] wrote: > Well that would certainly do it. Thank you for your help! > > On Fri, Apr 9, 2021 at 12:22 PM Lucas Heijst <[email protected]> wrote: > >> The pressure sensor is in the Davis console; you can’t read this data >> with this driver. >> >> Op vrijdag 9 april 2021 om 16:06:21 UTC-3 schreef [email protected]: >> >>> Hi Luc, >>> >>> Ok I took a look at the weewx web interface and it does look like it's >>> receiving data, which is good! I had not checked before because I thought >>> the driver was not working. It's just this that fails: >>> >>> pi@wxpi:~ $ sudo PYTHONPATH=/usr/share/weewx python3 >>> /usr/share/weewx/user/rtldavis.py --cmd="/home/pi/work/bin/rtldavis --tf US" >>> >>> Weewx itself seems fine though, no errors in the logs. >>> >>> Not a big deal for me, but if you would like to continue troubleshooting >>> the driver I am happy to help. >>> >>> Unrelated (?) question. I don't seem to be getting any pressure data. >>> Station is a Vantage Pro 2. Maybe the loop period needs to be longer? Happy >>> to attach some data if that is helpful. >>> >>> Cheers, >>> --a >>> >>> On Fri, Apr 9, 2021 at 4:37 AM Lucas Heijst <[email protected]> wrote: >>> >>>> Hi Arlen, >>>> >>>> Running weewx directly seems to be broken. I have to look at that. >>>> Please set debug=1 in weewx.conf and run weewx as a daemon. >>>> Then send the log file from start till the first error. >>>> >>>> Op vrijdag 9 april 2021 om 03:53:36 UTC-3 schreef [email protected]: >>>> >>>>> Hi Luc, >>>>> >>>>> Sorry for the thread necromancy but I'm not really sure what the norms >>>>> are around starting new threads or opening github issues. I'm having the >>>>> same issue as uvedhe, but I believe that I am getting data, it just takes >>>>> a >>>>> while. >>>>> >>>>> For example, here's what happens when I run rtldavis directly >>>>> >>>>> pi@wxpi:/ $ $GOPATH/bin/rtldavis -tf US >>>>> 23:31:41.484368 rtldavis.go VERSION=0.15 >>>>> 23:31:41.485107 tr=1 fc=0 ppm=0 gain=0 maxmissed=51 ex=0 >>>>> receiveWindow=300 actChan=[0] maxChan=1 >>>>> 23:31:41.485224 undefined=false verbose=false disableAfc=false >>>>> deviceString=0 >>>>> 23:31:41.486233 BitRate: 19200 >>>>> 23:31:41.486286 SymbolLength: 14 >>>>> 23:31:41.486329 SampleRate: 268800 >>>>> 23:31:41.486366 Preamble: 1100101110001001 >>>>> 23:31:41.486403 PreambleSymbols: 16 >>>>> 23:31:41.486439 PreambleLength: 224 >>>>> 23:31:41.486479 PacketSymbols: 80 >>>>> 23:31:41.486517 PacketLength: 1120 >>>>> 23:31:41.486553 BlockSize: 512 >>>>> 23:31:41.486589 BufferLength: 2048 >>>>> Found Rafael Micro R820T tuner >>>>> 23:31:41.926203 Hop: {ChannelIdx:0 ChannelFreq:902419338 FreqError:0 >>>>> Transmitter:0} >>>>> Exact sample rate is: 268800.001367 Hz >>>>> 23:31:42.103009 GetTunerGain: 0 Db >>>>> 23:31:42.103037 SetFreqCorrection 0 ppm Successful >>>>> Allocating 1 zero-copy buffers >>>>> 23:31:42.106932 Init channels: wait max 135 seconds for a message of >>>>> each transmitter >>>>> 23:32:52.437316 TRANSMITTER 0 SEEN >>>>> 23:32:52.437491 Hop: {ChannelIdx:19 ChannelFreq:911952597 FreqError:0 >>>>> Transmitter:0} >>>>> 23:32:54.999338 600557FFC100B25F 2 0 0 0 0 msg.ID=0 >>>>> 23:32:54.999764 Hop: {ChannelIdx:41 ChannelFreq:922991108 FreqError:0 >>>>> Transmitter:0} >>>>> 23:32:57.561300 80055C206900FA0A 3 0 0 0 0 msg.ID=0 >>>>> 23:32:57.561605 Hop: {ChannelIdx:25 ChannelFreq:914963100 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:00.124869 E0045C800300563E 4 0 0 0 0 msg.ID=0 >>>>> 23:33:00.125445 Hop: {ChannelIdx:8 ChannelFreq:906433342 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:02.686749 500359FF73008A63 5 0 0 0 0 msg.ID=0 >>>>> 23:33:02.686858 Hop: {ChannelIdx:47 ChannelFreq:926001611 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:05.248703 400358FD0100E608 6 0 0 0 0 msg.ID=0 >>>>> 23:33:05.248811 Hop: {ChannelIdx:32 ChannelFreq:918475353 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:07.812769 800456205B005B07 7 0 0 0 0 msg.ID=0 >>>>> 23:33:07.812888 Hop: {ChannelIdx:13 ChannelFreq:908942094 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:10.374274 E00362800300BF59 8 0 0 0 0 msg.ID=0 >>>>> 23:33:10.374381 Hop: {ChannelIdx:36 ChannelFreq:920482355 FreqError:0 >>>>> Transmitter:0} >>>>> 23:33:12.936296 500458FF7100FD61 9 0 0 0 0 msg.ID=0 >>>>> >>>>> As you can see, it takes >60s to start parsing data. When I try to run >>>>> the weewx driver, it crashes after ~10s >>>>> >>>>> 23:19:53.355369 Init channels: wait max 135 seconds for a message of >>>>> each transmitter >>>>> Traceback (most recent call last): >>>>> File "/usr/share/weewx/user/rtldavis.py", line 1407, in <module> >>>>> payload = lines[0].strip() >>>>> IndexError: list index out of range >>>>> >>>>> Sometimes rtldavis is faster or slower, but rarely does it start in >>>>> <10s. From reading other comments, it sounds like the driver times out >>>>> after 10s of no data here. >>>>> >>>>> Any ideas what might be happening here? The antenna that I have on >>>>> there is a cheap set of rabbit ears (dipole), could certainly get a >>>>> better >>>>> one, the station is about 80ft (25m) away on the roof of the next >>>>> building >>>>> over. Hardware is a raspberry pi and and an RTL-SDR blog brand R820T2 >>>>> RTL2832U SDR. Pi is running latest raspbian. >>>>> >>>>> Thank you for all your hard work, I am so close! >>>>> On Wednesday, May 8, 2019 at 1:37:45 AM UTC-7 [email protected] >>>>> wrote: >>>>> >>>>>> uvedhe wrote on github : >>>>>>> >>>>>> I will answer this in the weewx-rtldavis topic in the >>>>>>> weewx-development forum. >>>>>>> Luc >>>>>>> >>>>>> uvedhe <https://github.com/uvedhe> commented 14 hours ago >>>>>>> <https://github.com/lheijst/weewx-rtldavis/issues/1#issue-441358316> >>>>>>> >>>>>> I can successfully run $GOPATH/bin/rtldavis which returns various >>>>>>> entries, like these: >>>>>>> >>>>>>> 19:10:43.856163 Init channels: wait max 17 seconds for a message of >>>>>>> each transmitter >>>>>>> 19:11:01.793521 Init channels: wait max 17 seconds for a message of >>>>>>> each transmitter >>>>>>> 19:11:01.794049 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} >>>>>>> 19:11:19.732536 Init channels: wait max 17 seconds for a message of >>>>>>> each transmitter >>>>>>> 19:11:19.732580 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} >>>>>>> >>>>>>> Hi uvedhe, >>>>>> >>>>>> The rtldavis log show you didn't receive any data. >>>>>> >>>>>> The rtldavis program use default the EU-frequencies. You use the EU >>>>>> version of the Davis Vantage, right? >>>>>> The program runs succesfully on a Raspberry PI, Not sure if it will >>>>>> run on OS X 10 too. >>>>>> >>>>>> You could try to run the rtldavis program with several other ppm >>>>>> settings to check if any data will b read like: >>>>>> $GOPATH/bin/rtldavis -ppm 3 >>>>>> or >>>>>> $GOPATH/bin/rtldavis -ppm -3 >>>>>> >>>>>> Luc >>>>>> >>>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "weewx-development" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/weewx-development/jhGleLxu-p0/unsubscribe >>>> . >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/weewx-development/93e51a21-294a-4736-982a-83efabc4e03dn%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/weewx-development/93e51a21-294a-4736-982a-83efabc4e03dn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "weewx-development" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/weewx-development/jhGleLxu-p0/unsubscribe >> . >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-development/297b95f2-6904-4d9b-aced-dd52d6b2dd4an%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-development/297b95f2-6904-4d9b-aced-dd52d6b2dd4an%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "weewx-development" group. 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