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Spirit1 telemetry Hobbywing V4

Posted: Fri 20. Jun 2025 18:39:32
by ajadda
Hi,

after quite a while of research I have to ask my questions here:

What works is the governor, the correct speed is displayed and also controlled. The yellow cable of the Hobbywing is connected to the middle pin (ELE/PIT/AIL), i.e. with PIT.

So far, so good.

For telemetry, the Telem UNI cable connects the satellite port of the Spirit1 to the programming port of the Hobbywing. In the Settings app, “Hobbywing V4” is set for telemetry and the battery voltage, temperature and RPM are displayed in the telemetry window of the Settings app.

Here is my first problem:
When the helicopter starts up, the correct rpm is displayed during run-up, from approx. 2500 rpm the display jumps to a significantly lower three-digit value at some point. When the engine is switched off, plausible values are displayed again shortly before standstill. At final speed, the displayed value is approx. 4.5 times lower than in the governor window.

Second problem:
There is no display on the TX (set up according to the instructions and successfully implemented in other installations), only the voltages of the RX are displayed.
According to the instructions, the FrSky integration cable should be split for the telemetry transmission, with the red (middle) cable being plugged into AIL of the ELE/PIT/AIL port. When I do this, the Hobbywing is no longer armed.

The following components are used:
Spirit1 (V3.7.4) with FrSky Integration cable
Futaba R7003SB
Hobbywing 25A V4 (newest non-VBAR version)

What have I overlooked?
Thank you for any advice...

Regards,
Alexander

Re: Spirit1 telemetry Hobbywing V4

Posted: Sat 21. Jun 2025 12:38:23
by Mattes61
Hello Alexander,
I don't know that much with futaba, but one thing is very important for FrSky and Futaba with the integration cable -
It is important to connect a direct cable for powering the receiver because FrSky integration cable can not power the receiver -

Here some links maybe you have some overlooked in this sections:
https://manual.spirit-system.com/index. ... S_RECEIVER
https://manual.spirit-system.com/index. ... _Telemetry
https://manual.spirit-system.com/index. ... _Telemetry
https://manual.spirit-system.com/index. ... e=Governor
Screenshot 2025-06-21 133427.png
Screenshot 2025-06-21 133207.png
Best regards
Matthias

Re: Spirit1 telemetry Hobbywing V4

Posted: Sat 21. Jun 2025 13:21:12
by ajadda
Hello Matthias,

thank you very much for your help!

I am familiar with all the linked documentation and I also know that the RX must be supplied directly with power.
I had already implemented this via a Y-cable, whether with or without the direct connection, all problems remain the same.

Regards,
Alexander

Re: Spirit1 telemetry Hobbywing V4

Posted: Sat 21. Jun 2025 22:46:42
by PanzerIV
This actually sounds very similar to a problem that I am having while using Fbus with a W1, Scorpion ESC, and an Archer Plus RS.

Similar setups are working with Spirit GT, in three other helis. One with YGE 205 HV, one with HobbyWing V5 80 amp, and one in a gasser. Mixed between Acces and TD receivers.

Re: Spirit1 telemetry Hobbywing V4

Posted: Sun 22. Jun 2025 18:17:55
by ajadda
Well, I don't know if it's comparable, all the components and protocols are different from mine.
Maybe the Spirit version?!?
However, I also have other models where telemetry works perfectly, even with version 3.74, but with different hardware.

Regards,
Alexander

Re: Spirit1 telemetry Hobbywing V4

Posted: Mon 23. Jun 2025 15:16:08
by ZeXx86
If not using Spirit Governor, I would remove RPM cable from the PIT pin.
Possibly your radio could have Gear Ratio programmed. Please leave it at default (1:1 settings) because both Spirit and Radios will recalculate it which will result in a wrong values.

Re: Spirit1 telemetry Hobbywing V4

Posted: Mon 23. Jun 2025 19:36:00
by ajadda
Hi,

thanks for your advice...

The governor is in use and working correctly, so the RPM cable is needed on the PIT pin.

My radio has no Gear Ratio programmed, I only set percentage values for idleup 1 and 2. All the data I read is displayed in the Settings software. Strangely enough, the governor window always shows the correct RPM, the telemetry window does too at first, but from about 2500 rpm it suddenly shows a much smaller 3-digit value, which slowly increases with increasing RPM, but always shows a value that is way too low. Below approx. 2500 rpm, both windows (Govenor and telemetry) show the same value.

Unfortunately, I don't get any telemetry value on my transmitter, not even the wrong one, neither in telemetry mode Hobbywing V4 nor in Kontronik mode. Only the voltage values from the RX itself are shown.

The attached video shows the behavior in the telemetry window:
Spirit1 telemetry Hobbywing V4.mov
(3.56 MiB) Downloaded 15569 times
0:01 Engine run-up
0:10 Suddenly incorrect rpm
0:23 Final rpm
0:24 Engine shutdown
0:25 Suddenly correct rpm again

Regards,
Alexander

Re: Spirit1 telemetry Hobbywing V4

Posted: Wed 25. Jun 2025 18:48:41
by ajadda
Hi,

is there possibly an issue with the FrSky Integration cable?
In the manual the cable is shown with a red servo plastic, mine has a black one, must be an older version.
Could there be any change in the electronics that causes problems in my case?
The modification of my FrSky integration cable with the red cable to PIT already means that the ESC is not armed.
With the unmodified integration cable all function except telemetry are given.

Regards,
Alexander

Re: Spirit1 telemetry Hobbywing V4

Posted: Thu 26. Jun 2025 8:57:19
by Mattes61
Alexander you have to modify the Integration cable like in the manual showed, with this modified cable and FrSky receiver it works for me -

Regards
Matthias

Re: Spirit1 telemetry Hobbywing V4

Posted: Thu 26. Jun 2025 16:50:54
by ajadda
Hi Matthias,

yes I know, but as I wrote, if I do so, the ESC is will not arm.
That is why I was asking, if there maybe could be a problem with my integration cable.
Are there probably older and newer versions, as mine has a black servo plastic, the one in the manual has a red one.

Regards,
Alexander