- Posts: 1016
JJRC H20 Hex Quad
30 Jan 2016 12:23 #42408
by goebish
Replied by goebish on topic JJRC H20 Hex Quad
Ok, this is not really a rounding problem but something else, give me a few minutes to fix it 
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30 Jan 2016 13:08 #42411
by SeByDocKy
Replied by SeByDocKy on topic JJRC H20 Hex Quad
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30 Jan 2016 14:14 #42416
by goebish
Replied by goebish on topic JJRC H20 Hex Quad
Thanks for reporting.
Can you try to set rudder channel to a fixed value of 0 and check if the problem remains ? (obviously you won't be able to control yaw)
Can you try to set rudder channel to a fixed value of 0 and check if the problem remains ? (obviously you won't be able to control yaw
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30 Jan 2016 14:36 - 30 Jan 2016 14:36 #42417
by petsmith
Tested with rudder channel fixed to 0, no more yawing left & right. It finally able to hold its headings.
Then, I made another test with Expo 100 and it also worked, no more yaw drifting. Changed the Expo back to 45, yaw drifting again.
Replied by petsmith on topic JJRC H20 Hex Quad
goebish wrote: Thanks for reporting.
Can you try to set rudder channel to a fixed value of 0 and check if the problem remains ? (obviously you won't be able to control yaw
Tested with rudder channel fixed to 0, no more yawing left & right. It finally able to hold its headings.
Then, I made another test with Expo 100 and it also worked, no more yaw drifting. Changed the Expo back to 45, yaw drifting again.
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01 Feb 2016 03:43 #42479
by petsmith
Replied by petsmith on topic JJRC H20 Hex Quad
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01 Feb 2016 13:17 #42487
by goebish
Replied by goebish on topic JJRC H20 Hex Quad
Thanks for reporting back 
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04 Feb 2016 22:27 #42595
by goebish
Do you have the data ? or maybe they're already in another thread... too much protocols
Replied by goebish on topic JJRC H20 Hex Quad
SeByDocKy wrote: Other good news, the actuall protocol binds the JJRC H11D & H20C. But actually, we need to add a lot of functions
- video
- photo
- Headless
- Onekey return
- Reset (gyros calibration)
- camera tilting
I need to capture the associated SPI data
Do you have the data ? or maybe they're already in another thread... too much protocols
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04 Feb 2016 22:31 - 04 Feb 2016 22:37 #42596
by SeByDocKy
For this one I can't remember, but I recently captured data for the JJRC H20W (different from the H20C), for the JJRC H29G and the Fayee 805
Replied by SeByDocKy on topic JJRC H20 Hex Quad
goebish wrote:
SeByDocKy wrote: Other good news, the actuall protocol binds the JJRC H11D & H20C. But actually, we need to add a lot of functions
- video
- photo
- Headless
- Onekey return
- Reset (gyros calibration)
- camera tilting
I need to capture the associated SPI data
Do you have the data ? or maybe they're already in another thread... too much protocols
For this one I can't remember, but I recently captured data for the JJRC H20W (different from the H20C), for the JJRC H29G and the Fayee 805
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18 Feb 2016 09:59 #43236
by schallundrauch
Spare motor finally arrived... I can confirm this build fixes the heading-/yaw-problem (awesome!), but please note that some Expo for rudder is needed. Not a problem for me, but when I started testing with a simple 1-to-1 curve, the problem came (randomly) back after using rudder. It sometimes stopped when using the rudder again. Now I'm using some Expo and the problem is gone With Expo 25 it was still a bit glitchy, but Expo 35 seems to be already enough for a stable flight. Thanks a lot for having another great flyer. Also, thanks to petsmith for doing the tests!
Replied by schallundrauch on topic JJRC H20 Hex Quad
Spare motor finally arrived... I can confirm this build fixes the heading-/yaw-problem (awesome!), but please note that some Expo for rudder is needed. Not a problem for me, but when I started testing with a simple 1-to-1 curve, the problem came (randomly) back after using rudder. It sometimes stopped when using the rudder again. Now I'm using some Expo and the problem is gone
With Expo 25 it was still a bit glitchy, but Expo 35 seems to be already enough for a stable flight. Thanks a lot for having another great flyer. Also, thanks to petsmith for doing the tests! Please Log in or Create an account to join the conversation.
27 Feb 2016 21:41 #43784
by Dreamer338
Replied by Dreamer338 on topic JJRC H20 Hex Quad
and I thought that the yaw jitter was due to me 'landing' it in water some time ago 
Thank you!
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