In the past I had sensors with different frequencies and did frequency hopping. It was a little slow but worked. Now everything is the same frequency (I got rid of the sensors on dift. frequencies). I think the idea of rtl_tcp http://manpages.ubuntu.com/manpages/trusty/man1/rtl_tcp.1.html is that it allows data from one single specific SDR dongle to be read by multiple radio programs, for example rtl_433 which does accept input from tcp I think looking at the "-d" option in the manpage. Or I could just shell out $25 bucks and get another dongle. The overall idea I am examining is (1) arduinos with sensors and RFM96W radios transmit using radiohead "RH ASK" to the rtl-sdr. (2) the rtl_tcp service on my computer sends it to one rtl_433 for each respective weather station. (3) "RH ASK" device driver (number 67) in rtl_433 gets data. (2) modify rtl_433 driver (number 67) to accept my data (3) rtl_433 output can then be used as input to the weewx-sdr driver (4) weewx-sdr driver would have to be modified also each weather station has its own instance of weewx which has a separate (instance of the) weewx-sdr driver which has its own (instance of the) rtl_433 driver. In this setup each weewx instance can access all the data.
On Thursday, April 28, 2022 at 6:28:32 PM UTC-7 [email protected] wrote: > I would assume that you would need to separate SDR dongles, since the > rtl_433 instance #1 would claim the usb port for the SDR Dongle. What are > the frequencies for both the weather stations? If the frequencies are the > same; i.e. 433MHz or 915MHz, you should be able to decode both stations > with one dongle. Or if they are different; i.e. 433MHz and 915MHz and > don't mind the possibility of missing packets, you should be able to decode > both stations with one dongle by hopping between both frequencies. > > On Thursday, April 28, 2022 at 9:24:05 PM UTC-4 [email protected] wrote: > >> how about if you run two instances of rtl_433 and one dongle using >> rtl_tcp sending to both rtl_433s. >> >> On Thursday, April 28, 2022 at 5:43:45 PM UTC-7 William Garber wrote: >> >>> Suppose you have two weather stations each represented by a respective >>> different simultaneously running instance of weewx. Both instances of >>> weewx use weewx-sdr as driver for a rtl-sdr radio device connected by usb >>> to the computer. You have to configure the rtl-sdr radio using rtl_433 >>> which in turn uses the rtl-sdr linux driver. >>> >>> The question may be really dumb but don't you have to have two separate >>> rtl-sdr radio devices (each on different usb connections) to run both >>> weather stations at the same time? >>> >> -- 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/def8cf7b-13e5-44da-b29a-0ad8db78d5b3n%40googlegroups.com.
