turnigy tgy 9x + frsky R9M Smart Port telemetry

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rafzal
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turnigy tgy 9x + frsky R9M Smart Port telemetry

Post by rafzal » Mon Nov 21, 2022 11:30 am

My first post at this forum so hello all.

I want try use FrSky R9M with Turnigy TGY 9X (Atmega64) with Er9x-FrSky Telemetry
I know that TGY 9X is quite old stuff but at this time I'm not able to buy something else.
FrSky_R9M_and_R9.jpg
FrSky_R9M_and_R9.jpg (25.05 KiB) Viewed 121 times
Previously I had FrSky DJT transmitter and D4R-II, and telemetry work fine. I have MAX3232 converter inside, and outside cables with connector for RS232 in DJT module.
MAX3232:
MAX3232inTGY9X.jpg
MAX3232inTGY9X.jpg (39.01 KiB) Viewed 121 times
RS232 cable outside:
RS232inTGY9X.jpg
RS232inTGY9X.jpg (89.67 KiB) Viewed 121 times
Now I use R9M transmitter wit R9 receiver.

As MikeB wrote in this thread:
viewtopic.php?t=11001
For the EU version:
Use the XJT(PXX) protocol and the R9M will operate in 25mW, 8 channel mode with telemetry.
Use the PPM protocol and set the switches on the R9M to select 200mW or 500mW output. You don't get telemetry with either of those.
The only configuration you don't get is 25mW, 16 channel with telemetry.

For the international version, XJT will give 10mW with telemetry. Use PPM and the switches for other powers, you won't get telemetry.

I'll see if I can add anything, but the '64 has very little flash space left (around 400 bytes).

Mike

I put R9M module in TGY 9X and change protocol to XJT and BIND to receiver R9 using BIND option. Binding was successful and RC channel start to work via SBUS.
XJT_protocol.jpg
XJT_protocol.jpg (13.17 KiB) Viewed 121 times
And I connected RS232 same as in DJT module (Rx Tx 5V GND). But telemetry don't work.

So I have some questions:

1. Telemetry work only on Smart Port module? So should I connect Smart Port Output from R9M module to input(to Rx) of MAX232? Or should I connect in another way?

2. Telemetry of signal (Rssi & Tssi) should work if SmartPort is not connected to R9 receiver?

3. I use Pixhawk wit Ardupilot, with DJT & D4R-II I used option "3" in uart options "FrSky D, See FrSky Telemetry", so should I use another option in here?
"4"-FrSky SPort or "10"-FrSky SPort Passthrough (OpenTX)
link:
https://ardupilot.org/plane/docs/common ... tions.html

I know that on receiver side I should connect in that way:
Image

4. Frsky R9M and R9 modules has ACCST 868Mhz EU firmware as provided by the seller. As i read about this modules if module will have ACCESS firmware I shoulden't be able to run anything on TGY9X? It's true?
If no - how I can check which firmware is installed?

I have er9x-r820 with FRSKY MOD:
version.jpg
version.jpg (12.42 KiB) Viewed 121 times
Off Topic
MikeB, Er9x is glorious, thank You for supporting this old stuff. I really appreciate that
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Last edited by rafzal on Tue Nov 22, 2022 1:06 pm, edited 1 time in total.


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MikeB
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Re: turnigy tgy 9x + frsky R9M Smart Port telemetry

Post by MikeB » Mon Nov 21, 2022 3:32 pm

In the Protocol menu, after having selected XJT, check if you are able to set the Type to R9M. With the ATMEGA64, there is limited support for the R9M module, there is not enough flash space for full support.

For the Telemetry, it should work if you connect the SPort signal on the back of the module to the Rx signal of the RS232 converter (use the same wire that connected to the Tx signal of the module).

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!

raza
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Re: turnigy tgy 9x + frsky R9M Smart Port telemetry

Post by raza » Wed Nov 23, 2022 2:23 pm

after selecting XJT protocol, avaiable types are; "D8", "D16" and "LRP"

i know that Atmega64 is limited, but still can I have in this configuration telemtry?

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MikeB
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Re: turnigy tgy 9x + frsky R9M Smart Port telemetry

Post by MikeB » Wed Nov 23, 2022 6:01 pm

You appear to have R820 on your Tx. R821 has been released. This may have the R9M type in it.
Try D16 and see if the SPort telemetry does work.

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!


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