"'michael.k...@gmx.at' via weewx-user" <weewx-user@googlegroups.com> writes:
> Regarding "phone home" I plan to experiment with such devices next year > https://www.rtl-sdr.com/rtl_433-ported-to-esp32-microcontrollers-with-cc1101-or-sx127x-transceiver-chips/ > My goal is to capture all the broadcasted values from my devices, cache > them locally, publish them in realtime using MQTT and make cached values > available using REST. In other words: build my own GW. I didn't find any > projects like that so far. In theory, it should be possible to combine any > wireless sensor which is broadcasting unencrypted values, into one such > gateway. My resources are very limited, so we'll see. I'm still hoping to > find something out there, that solved this already in the one or the other > way and made it available for the public. As this is how weewx users can get data, I think limited discussion is reasonably OT.. I am running 4 rtl-sdr dongles and am part of rtl_433 upstream. My view is that to get reliable data, you need to have a receiver on each frequency. I have one on 433.92 for Acurite devices, one on 915 MHz for Ecowitt, one on 315 for TPMS (not weather) and a second on 433.92 for TPMS (different location) but also picks up Acurite. rtl_433 does not receive Davis but rtldavis does. However, AIUI Davis transmitters change frequency every transmission and the receiver knows the pattern and changes proaactively to match, once synchronized. So I expect that while it might be possible to make this work on an ESP (vs a "real computer" with an SDR dongle), it is likely to take one receiver per frequency, where Davis's hop pattern counts as a frequency separately from normal 915. -- 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 weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/rmi8r5prlc0.fsf%40s1.lexort.com.
