Requesting 915MHz config for lilygo-rtl_433

[lachesis]

Is your feature request related to a problem? Please describe. I have two Lilygo LORA32 boards that I bought for use with rtl_433 via OpenMQTTGateway. One is on 433MHz, which works great with the out of the box config, while the other is on 915MHz, for use with a weather station in the US. I tried flashing both with lilygo-rtl_433 config. The 433MHz one sees my cheap sensors, while the 915MHz one sees nothing, and claims to be on "mhz": 433.92.

Describe the solution you'd like Please add another config like lilygo-rtl_433 to the web flashing UI that sets the frequency of the board to 915MHz.

Describe alternatives you've considered I could probably build this software myself, but it looks like it has a lot of dependencies and it scares me. :) The web flash utility is so easy to use, so I'd love to use it with the 915MHz device as well.

Additional context Not sure, let me know if anything else is needed.

[NorthernMan54]

To change the frequency you can use a MQTT command, details are here

https://docs.openmqttgateway.com/use/rf.html#rtl-433-device-decoders

Please ensue to use the correct gateway name

[lachesis]

Oh interesting, I did not see that option. I am having an issue getting it to work however. I tried publishing to all 3 of:

home/OpenMQTTGateway/commands/lilygo_rtl433_915 home/commands/lilygo_rtl433_915 home/lilygo_rtl433_915/commands home/lilygo_rtl433_915/commands/mhz home/lilygo_rtl433_915/commands/lilygo_rtl433_915

with the message: {"mhz": 915.0}

But the "mhz" value in the SYStoMQTT topic did not change. I also tried a power cycle both before and after publishing. This did not help either. Here is a screenshot from my MQTT Explorer if you can tell me what I'm doing wrong?

Thank you!

[lachesis]

Ah, I tried the topic home/lilygo_rtl433_915/commands/MQTTtoRTL_433 and I now see that the board responds to the mhz and status commands, but the SYStoMQTT mhz value does not update and I do not see any decoded messages.

[lachesis]

Oh I believe my sensor (weather station) uses FSK. It is this decoder in rtl433:

    [78]  Fine Offset Electronics, WH25, WH32B, WH24, WH65B, HP1000 Temperature/Humidity/Pressure Sensor

I see that this decoder is not listed on the doc page that you linked, and I believe I've seen that FSK is not supported, only OOK. If that's the case, you can go ahead and close this issue!

Here is the dump from a run with -A in rtl_433:

Detected FSK package    2023-04-23 18:11:48
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
time      : 2023-04-23 18:11:48                    Protocol  : 78
model     : Fineoffset-WH24                        ID        : 195
Battery   : 1            Temperature: 6.4 C        Humidity  : 61 %          Wind direction: 213       Wind speed: 2.4 m/s       Gust speed: 3.4 m/s       Rainfall  : 3138.3 mm     UV        : 54            UVI       : 0             Light     : 6696.0 lux
Integrity : CRC
Analyzing pulses...
Total count:  105,  width: 12.00 ms     (12004 S)
Pulse width distribution:
 [ 0] count:    1,  width:    0 us [0;0]    (   0 S)
 [ 1] count:    2,  width:    3 us [3;3]    (   3 S)
 [ 2] count:   41,  width:   57 us [55;60]  (  57 S)
 [ 3] count:    8,  width:  116 us [115;117]    ( 116 S)
 [ 4] count:    4,  width:  174 us [173;175]    ( 174 S)
 [ 5] count:    2,  width:  232 us [232;233]    ( 232 S)
 [ 6] count:    1,  width:  349 us [349;349]    ( 349 S)
 [ 7] count:    4,  width:    7 us [7;9]    (   7 S)
 [ 8] count:   18,  width:    1 us [1;1]    (   1 S)
 [ 9] count:   20,  width:    2 us [2;2]    (   2 S)
 [10] count:    1,  width:   16 us [16;16]  (  16 S)
 [11] count:    2,  width:    5 us [5;5]    (   5 S)
 [12] count:    1,  width:   32 us [32;32]  (  32 S)
Gap width distribution:
 [ 0] count:    3,  width:    2 us [2;2]    (   2 S)
 [ 1] count:   37,  width:   57 us [50;59]  (  57 S)
 [ 2] count:    5,  width:  174 us [174;174]    ( 174 S)
 [ 3] count:    3,  width:  231 us [231;233]    ( 231 S)
 [ 4] count:    4,  width:  116 us [116;117]    ( 116 S)
 [ 5] count:    3,  width:  368 us [348;408]    ( 368 S)
 [ 6] count:    2,  width:  522 us [465;580]    ( 522 S)
 [ 7] count:    1,  width:  290 us [290;290]    ( 290 S)
 [ 8] count:    1,  width:   91 us [91;91]  (  91 S)
 [ 9] count:    2,  width:   33 us [31;35]  (  33 S)
 [10] count:    1,  width:   24 us [24;24]  (  24 S)
 [11] count:    2,  width:   11 us [11;12]  (  11 S)
 [12] count:   13,  width:    4 us [4;4]    (   4 S)
 [13] count:   18,  width:    3 us [3;3]    (   3 S)
 [14] count:    2,  width:   17 us [17;18]  (  17 S)
 [15] count:    4,  width:    6 us [6;7]    (   6 S)
Pulse period distribution:
 [ 0] count:    1,  width:    2 us [2;2]    (   2 S)
 [ 1] count:   32,  width:    5 us [5;5]    (   5 S)
 [ 2] count:   27,  width:  116 us [114;118]    ( 116 S)
 [ 3] count:   10,  width:  235 us [231;265]    ( 235 S)
 [ 4] count:    6,  width:  173 us [173;175]    ( 173 S)
 [ 5] count:    6,  width:  309 us [290;348]    ( 309 S)
 [ 6] count:    4,  width:  450 us [406;523]    ( 450 S)
 [ 7] count:    2,  width:  610 us [581;639]    ( 610 S)
 [ 8] count:    3,  width:   43 us [39;47]  (  43 S)
 [ 9] count:    2,  width:   31 us [31;32]  (  31 S)
 [10] count:    2,  width:   62 us [57;67]  (  62 S)
 [11] count:    3,  width:   18 us [18;19]  (  18 S)
 [12] count:    1,  width:    7 us [7;7]    (   7 S)
 [13] count:    3,  width:    3 us [3;3]    (   3 S)
 [14] count:    1,  width:   23 us [23;23]  (  23 S)
 [15] count:    1,  width:   12 us [12;12]  (  12 S)
Pulse timing distribution:
 [ 0] count:    1,  width:    0 us [0;0]    (   0 S)
 [ 1] count:   20,  width:    3 us [3;3]    (   3 S)
 [ 2] count:   78,  width:   57 us [50;60]  (  57 S)
 [ 3] count:   12,  width:  116 us [115;117]    ( 116 S)
 [ 4] count:    9,  width:  174 us [173;175]    ( 174 S)
 [ 5] count:    5,  width:  232 us [231;233]    ( 232 S)
 [ 6] count:    4,  width:  363 us [348;408]    ( 363 S)
 [ 7] count:    8,  width:    7 us [6;9]    (   7 S)
 [ 8] count:   21,  width:    1 us [1;1]    (   1 S)
 [ 9] count:   23,  width:    2 us [2;2]    (   2 S)
 [10] count:    3,  width:   17 us [16;18]  (  17 S)
 [11] count:    2,  width:    5 us [5;5]    (   5 S)
 [12] count:    3,  width:   32 us [31;35]  (  32 S)
 [13] count:    2,  width:  522 us [465;580]    ( 522 S)
 [14] count:    1,  width:  290 us [290;290]    ( 290 S)
Level estimates [high, low]:  15889,     90
RSSI: -0.1 dB SNR: 22.5 dB Noise: -22.6 dB
Frequency offsets [F1, F2]:   -2716,   2894 (-41.4 kHz, +44.2 kHz)
Guessing modulation: No clue...

[NorthernMan54]

Sir you are correct FSK modulation is not currently supported. It is something we are working on, hopefully we are successful.

Also the command structure for your setup would be

home/lilygo_rtl433_915/commands/MQTTtoRTL_433 {"mhz":915}

[lachesis]

Resolved by pull request #1812! Thanks guys.