Using higher PPM inputs for head tracker?

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Rally205
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Using higher PPM inputs for head tracker?

Post by Rally205 »

Hi guys,
I have searched all over but can't find an answer to this. I would like to use the higher PPM inputs ( 9-16 ) primarily for a head tracker. Is it possible to do this through the trainer port?
Thanks Marcus

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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

Yes, but you cannot configure them in the trainer menu.
You need to set "PPMx" as source to the mixes that control your camera's pan and tilt.

João

EDIT: ErSky9x also supports SBUS as input on the trainer port.
SBUS is much faster than PPM.
I have never used the higher channels though, but it should work.


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Kilrah
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Re: Using higher PPM inputs for head tracker?

Post by Kilrah »

Note that it makes little sense using higher channels for the inputs since you can remap things anywhere you want anyway. Doing so would only lengthen the frame and introduce lag.
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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

Yep, true, he could use for example PPM5 (or any other PPMx) to control any channel in the mixer.. Just set it as source in the mixes used for the camera..

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Ok. Thanks for the replies. Let me add a little more info and see if it is still possible. I plan to use a Frsky XJT tx module with an x8r rx. Using Sbus with a ppm expander to gain 16 physical outputs. I have the first 8 channels on the rx used for control surfaces and motor control. I want to then connect the pan and tilt etc to the Sbus ppm expander.
Is that possible?
I have tried using ppm9 as a source in the mix for channel 9 but it does not work. Only ppm 1-8 seems to work with the head tracker.

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Kilrah
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Re: Using higher PPM inputs for head tracker?

Post by Kilrah »

That is possible and does NOT require your headtracker to be on high channels. You're confusing input and output.

What's your HT configuration, on what channels does it put out data?
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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

what version of ersky9x do you have installed on your radio??
Radio setup /version

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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Kilrah I can set it to any channel from 1 to 12.

João I am using version 3702-mike r221
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Kilrah
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Re: Using higher PPM inputs for head tracker?

Post by Kilrah »

Then set them anywhere e.g. 1-3 then in the radio mixer select say PPM1 on the line for CH9, and your tracker's CH1 will be put out on the receiver's CH9.
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Ah. Ok. In that case I am confusing input/output. I was thinking the 16 available ppm inputs were used by the 16 outputs. So you could mix and match but only within those 16. :?
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Re: Using higher PPM inputs for head tracker?

Post by bob195558 »

Not sure if this will help, but for Head Tracking Mixes on my Taranis using erSky9x firmware,
I use channels 7 and 8 which is what my goggles use.
Head Tracking Mixes Settings_b.jpg
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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

yes, but you don't have to connect them to Channels 7 and 8 only because the head tracker outputs on both channels..
You can connect them for example on channels 6 and 7 if they are available.

In that case it would be:

CH6 100% PPM7
CH7 100% PPM8


Just a little example

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Yes. Thanks guys. I already have it setup like that. In my obviously incorrect thinking that I had limited inputs I was trying to use ppm9 and above just as an experiment for when I increase the outputs but that does not work.
Why?
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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

strange, it should work, if your head tracker really outputs on channel 9.. Perhaps I am also missing something..

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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Do you ever have one of those moments where you suddenly realise what an idiot you are. I am an intelligent guy or at least I believe I am but I just went back to the manual and looked at the flow diagram for the mixer and input/output and it dawned on me how stupid I can be. :idea: :lol: :oops:
It all makes sense now. Thank you so much for humoring a simpleton. Excuse me whilst I take the walk of shame.
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

As I see it João there is only ppm 1- 8 available through the trainer port. At least according to the manual.
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MikeB
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Re: Using higher PPM inputs for head tracker?

Post by MikeB »

Since the manual was written, I added support for SBUS trainer input with 16 channels, and extended the processing of the PPM input to accept up to 16 channels.

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jhsa
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Re: Using higher PPM inputs for head tracker?

Post by jhsa »

I think the manual you are referring to was written for Er9x which only supports PPM1 to 8 :)

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Aaaaargh. Back to confusion :lol:

I did try it on ppm9, 10 and 11. No joy.
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MikeB
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Re: Using higher PPM inputs for head tracker?

Post by MikeB »

Are you certain your trainer input source is sending more than 8 channels?
What revision of firmware do you have on the radio? 16 channel trainer support was added in r214.

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jhsa
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Re: RE: Re: Using higher PPM inputs for head tracker?

Post by jhsa »

Rally205 wrote:Kilrah I can set it to any channel from 1 to 12.

João I am using version 3702-mike r221
He says he has r221..

João

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Yep. R221. I have ppm 1-16 available in the mixer inputs but nothing above 8 works for me. Not an issue really but strange that it does not work.
Just out of curiosity and a lack of imagination what would use Sbus through the trainer port?
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Kilrah
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Re: Using higher PPM inputs for head tracker?

Post by Kilrah »

A receiver with SBUS out to do wireless trainer for example.
Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Cool. So I take it the trainer port can power the rx too?
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MikeB
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Re: Using higher PPM inputs for head tracker?

Post by MikeB »

The Futaba style trainer socket should have battery power on it so that may power the receiver for wireless trainer. The Jack plug cannot supply power.

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Thanks for the "input" everyone. ;)
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MikeB
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Re: Using higher PPM inputs for head tracker?

Post by MikeB »

I did just test the PPM trainer input. I configured one radio to output 10 channels on the trainer output and connected it to another radio. With one of the sticks configured on channel 9, then a mix on the other radio with source of PPM9 responded to the stick on the first radio. I also changed which stick was controlling channel 9 and that change showed the new stick controlling the PPM9 mix.
So, I reckon PPM9-PPM16 are working as PPM trainer inputs.

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

I must be missing something then. I set my HT to output on ppm7,8 and 9 and then set a mix for channel 7,8 and 9 with the source as ppm7,8 and 9. Weight etc as default. Channel 7 and 8 respond but nothing on 9. If I set the HT to output ppm1,2 and 3 and and configure the mixes appropriately then all 3 channels respond. Anything above ppm8 does not work for me.
In the trainer menu I have the everything as default.
Is there anything I have missed?
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MikeB
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Re: Using higher PPM inputs for head tracker?

Post by MikeB »

At the moment, after the test I did, the HT is suspect as not sending more than 8 channels out. Does it have something to configure the number of channels to send? This may be a different setting to specifying which channels to use.

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Rally205
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Re: Using higher PPM inputs for head tracker?

Post by Rally205 »

Not at home at the moment but I will check later. It is the Quanum/ diy head tracker. Configured with the gui.

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