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This is great Mike, thanks.. Question, would it be possible to increase the number of custom telemetry fields in the future?

Thanks

João

It may be possible, but what for?

Mike

You never know the future. At the rate things get developed. i wouldn't be surprised if they were needed soon

João

You may use a Scaler as well if you just need to re-name something. I'll add more custom items if/when they are needed.

Mike

That is what I meant. There is the possibility. Thanks Mike

João

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MikeB wrote: ↑Wed Jan 16, 2019 10:38 pm It may be possible, but what for?

Mike

Hi, Mike! Would it be possible to increase the number of custom telemetry fields?
After you add XFIRE protocol for AR9X board I am starting experimenting with Express LRS.
But ELRS sends 10 custom sensors, one that I needed is TX power (TPWR in OpenTX)

Here is screen from TX16S with ERLS and from AR9X with Custom sensors Also Custom sensor 1 show TX_RSSI1 in strange value, at the erskyTX "239" and at TX16S at the same spot "-16dB". I guess that I need some scaler but what Multiplier and divider should I use for it? I could also record raw telemetry log from debug menu if it's needed.

Thank you

Try the test version I've just posted. For the RSSI value, it looks like the value is a signed, 8-bit value, so just try subtracting 256.
There should be 10 custom sensors, and the Tx power one (Cus7), should have the correct value.

Mike

Wow it was fast Everything works! For RSSI I created scaler with offset -256 and now it matches the RSSI values at the OSD
One small issue about TX power it shows 0 for 50mw and 250mw.
10mw, 25mw, 100mw, 500mw and 1000mw shown right.
And also new sensors from 7 to 10 are present only in the drop-down menus and are not present at first screen of Telemetry => Sensors, where they can be renamed.


Thank you very much!

Try the one I've just posted, names should be available. The TxPower uses a table of values to look up the actual power from the index returned by the Rx. I've added 250, as I can see in openTx, but I've had to guess that 50 follows in the table, openTx source code doesn't show it.

Mike

Perfect, thank you names available for all custom sensors! 250mw power also shows correctly.
And about power 50mw it's well known bug in Crossfire protocol. I found this quote from one of ELRS developer at ELRS Discord server:

We need it as an enum option in the CRSF protocol. Currently it doesn't exist

Also found that new custom sensors not available in the Telemetry => Logging menu, just in case if you want to add it in future test version for other radios also

Thank you one more time for fast response and great firmware for my 10 years old TX