DSM Smart RX telemetry

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27 Jul 2025 19:11 #78730 by hexfet
DSM Smart RX telemetry was created by hexfet
Thanks, that info was helpful. I found the edgetx and MPM changes for the Smart support.

Please try this test build ea7fb0e . The Smart battery voltage and temperature will (hopefully) appear in the Volt2 and Temp fields on the telemetry test page. That was the easiest thing to do since the UI didn't change. Are there other values important to display?

The Bat value is the sum of Smart battery telemetry cell values 1-10. I followed what MPM does here even though up to 18 cell values can be reported.

Use the Datalog feature to capture specific telemetry values. The only way to get all telemetry data out is by adding a protocol option to send the data out the trainer port, then decode it externally. Do you have an FTDI adapter to capture that data? That would be helpful for debugging.

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29 Jul 2025 16:23 #78733 by Îluminatus23
Replied by Îluminatus23 on topic DSM Smart RX telemetry
First of all: Thank you so much!!!!
I was waiting in the other threat and today i saw your Message Here.
After flashing the Firmware and the lib, i can't See any difference unfortunatly.
What else can i do?
Here is a Screenshot.
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29 Jul 2025 20:27 #78734 by hexfet
Replied by hexfet on topic DSM Smart RX telemetry
You're welcome. The picture was helpful, thanks.

Best would be if you can capture the telemetry data from the trainer port. Do you have an FTDI adapter or logic analyzer to do that? If so I'll make a build to support it.

If not, we'll need to run through some debugging cycles with you trying various test builds. If you're up for that, please try test build 9b273a5 . In this build the standard FLOG values for Bat, RPM, and Temp are suppressed. Only the SmartRX telemetry for Bat and Temp will be shown.
- The RPM background should always be red, indicating the FLOG values are being ignored.
- If Smart RX battery telemetry is being received, the Bat and Temp fields should have white backgrounds.

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30 Jul 2025 18:35 #78735 by Îluminatus23
Replied by Îluminatus23 on topic DSM Smart RX telemetry
Thank for that super fast Development.
Unfortunatly i dont have such a cable.
Here you can See how IT Looks Like after the Update.
By the way: I have to use the dsm2 protocol to bin the newer Planes.

Thank you!!!
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01 Aug 2025 03:43 #78736 by hexfet
Replied by hexfet on topic DSM Smart RX telemetry
Thanks for testing.

I ran simulated telemetry data in the emulator and found a couple issues. Please try test build bc8b9c6 .

May sound like a silly question, but are you certain the model you are binding with supports Smart telemetry? I ask because I think one of the bugs would have crashed the tx if Smart telemetry was received.

Anyway, based on the emulator testing the new test build should show something in the Bat and Temp fields if Smart telemetry is being received.

Won't have much time to do more until next week.

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01 Aug 2025 04:45 #78737 by Îluminatus23
Replied by Îluminatus23 on topic DSM Smart RX telemetry
Thank you for your great help!

That is my last chance to keep my great Devo12S. I have a lot of these UMX planes. And at least two newer ones with SMART telemetry (UMX Turbo Timber EVO, UMX ME 262). I have tested both this morning and the screen still looks like in my last post.
What else can i do?

Thanks again and a great weekend!

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