Hi, I’ve been working on this for a while and have even tried a better antenna.
I have RTL-433 running on aPi4 on my desktop using an old generic dongle and an antenna on the shelf above, about 2.1m from the floor. This successfully decodes signals every minute (actually three quickly repeated).
The second device is a LILYGO T3. After some searching around here and trying several of the setups, I upgraded OMG to the latest.
My config is env:lilygo-rtl_433-fsk with
‘-DOOK_MODULATION=false’
‘-DRF_FREQUENCY=917’
and I have edited User_config to use my AP and a fixed address.
This sees a signal every hour or so and interestingly, decodes it as either an AOK-5056 or the Holman-WS5029.
I have added an external antenna (a generic ‘mobile’ mag base, good for the higher frequencies) on the same shelf with same results.
The Holman Receiver is on my desk and appears to update every minute OK.
Has anyone any thoughts on what to try next, or is it just that the T3 is ‘deaf’?
Exactly which version of the LILYGO T3 do you have, especially which MHz version?
In general a LilyGo is not a receptive as a RTL_SDR stick connected to RTL_433 on a RPi, but I would have thought that you’d get more received messages that one an hour.
I also do not know if there is any special issue with the LilyGo and the (older PWM) note added to the Holman Industries iWeather WS5029 weather station decoder info.
The decoder also states
Frequency: 917.0 MHz ± 40 kHz
so you should also try to adjust the frequency in the WebUI from 916.95 - 917.05 in 0.01 step, leaving each for a few minutes to see it things improve.
LilyGo reception is especially particular with the right frequency with FSK decoders. My own weather station doesn’t get received with 868.3 MHZ or 868.4 MHZ, but works perfectly fine with 868.35 MHz
I hope some of this helps in improving your reception.
