ZD720 gyro

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23 Jun 2013 22:26 #11265 by Pianobill1
ZD720 gyro was created by Pianobill1
Need help. I am trying to make work a ZD720 tail gyro with Devo10...rx1002. The gyro blinks red slowly which means no gain.

Does anyone have a config for this?

Much appreciated....

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24 Jun 2013 06:03 #11293 by rbe2012
Replied by rbe2012 on topic ZD720 gyro
Where did you connect your gyro? You define a mixer for this channel with "absolute" as input method and set the scale to the value you want. Add a second and third page if needed and assign a switch to them, also set absoluter values.
Keep in mind that in advanced mixer gui the value range is -100% to 100%, not 0-100% as in other firmwares.

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24 Jun 2013 17:30 #11308 by Pianobill1
Replied by Pianobill1 on topic ZD720 gyro
I'm on channel 4 and 7(gain). I tried 5 for the gain as well. I also confirmed the servo into channel 4 of rx1002 works as well as the Gyro on another receiver (FlySky).
I see read what you are saying...but still having difficulty getting my head around Deviation. Thus the request for a config.

Just looking for a config so that I can get it to work....maybe then some of his stuff will make sense. :)

The heli is just a simple Hausler450 with tail gyro ZD720. I am working great on all other servos (ail,ele,pitch).

Thanks

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24 Jun 2013 19:56 #11314 by rbe2012

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24 Jun 2013 22:58 #11315 by Pianobill1
Replied by Pianobill1 on topic ZD720 gyro
So I tried the example configs and still the same result. I was aware of the last two posts...not the first. So I installed flyguy's ini from the first post...but same results. I have tested again the Gyro + substituted another servo. Could it be the gyro is not compatible with the rx1002?

I have uploaded the current config I am using if anyone wants to take a look....

Thanks for any help!
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25 Jun 2013 06:26 - 25 Jun 2013 06:27 #11330 by rbe2012
Replied by rbe2012 on topic ZD720 gyro
Your config looks a little bit weird...

(1) cyclic3 should be ch6, not 5, when yoyu connect your servos to ch1, ch2 and ch6 like usual (you're free to do whatever you want, but I am not sure what you have done in reality 'cause you mentioned you have ch5 for gain)
(2) ch6 gives always 0 - why?

Did you connect the components in your heli like this:
ch1 - ele servo
ch2 - ail servo
ch3 - esc for throttle
ch4 - rudder servo / gyro in
ch5 - gyro gain
ch6 - pitch servo

If so, you config should look like this (otherwise some channels changed):
1-ELE - cyclic1 as you have
2-AIL - cyclic2 as you have
3-THR - complex as you have
4-RUD - EXPO/DR as you have
5-GEAR - gyro gain as below
6-(PITCH) - cyclic3
Virt1-Virt3 as you have done

5-GEAR: select a switch to use (I usually take MIX), create a complex mixer with fixed curves and the values you want, e.g. on the first mixer page -50% without switch, on the second 0% (gyro off) with MIX1, on the third +50% with MIX2. Or (maybe easier) with a EXPO/DR mixer like this:



If you have the chance to switch the gain value you should easily see if switching the MIX changes anything (be careful - no gyro on MIX1). If so, everything is fine and you simply have to set the correct value(s).

Could it be the gyro is not compatible with the rx1002?

I don't think so. Have you tested the two frame rates (11 and 22ms) which should be selectable at the rx? This could be the only thing what could cause incompatibilities.
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Last edit: 25 Jun 2013 06:27 by rbe2012.

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25 Jun 2013 19:49 #11354 by Pianobill1
Replied by Pianobill1 on topic ZD720 gyro
Thanks for your help and responses. One of the best forums I have been on in terms of member responses.

I took the config "as is" from the original author and put tail gyro on ch 4, pitch on 5 and gyro gain on 6. I also changed the config and then connected as you outlined. Still blinks slow red indicating no sens signal from rx.
Since I have a devo10, I do not use the tx to config. (no pretty pictures like devo8/12). I am learning Deviation from editing the config file and reading LOTS of examples. Maybe this is my mistake. I was thinking if I could only get a config that works, I could learn from that and mess around with values. I'm seeing I should have probably spent the extra $$$ and got a devo8 to learn from the menus.
After all the configs I have uploaded to this tx (too many to count) with EXACT results, I'm thinking it is worth looking at some compatibility issue. I just put on order for a HB730 including servo to see what that does. Should have end of week.

Once again, thanks for your help!

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25 Jun 2013 21:02 #11357 by rbe2012
Replied by rbe2012 on topic ZD720 gyro
Sorry, only little time now.
You can use the Devo8/Devo12 emulators to generate a config which can be used with Devo10 too - so you have a colored graphical interface. I like editing ini-files too but it feels much easier for me to make some changes in the gui and see how they look in the ini file to understand it.

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