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Cheerson CX35
- ajtank
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21 Oct 2016 09:44 #55248
by ajtank
Cheerson CX35 was created by ajtank
Other than JXD506, H26WH, H28WH and Q303, Cheerson CX35 is another quadcopter with moving camera gimbal. The movement is controlled by a slider on the stock transmitter. It features altitude hold and the throttle stick is always centred. It has one takeoff button for arming and another descend button for landing.
I am unable to bind CX35 with existing protocols. I have uploaded SPI captures here
a) power up / throttle up / throttle down / bind
b) takeoff button / throttle up / throttle centre / descend button / throttle down
c) slider centre / slider up / slider centre / slider down / slider centre
Appreciate any feedback, thank you.
I am unable to bind CX35 with existing protocols. I have uploaded SPI captures here
a) power up / throttle up / throttle down / bind
b) takeoff button / throttle up / throttle centre / descend button / throttle down
c) slider centre / slider up / slider centre / slider down / slider centre
Appreciate any feedback, thank you.
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21 Oct 2016 17:01 #55257
by goebish
Replied by goebish on topic Cheerson CX35
As for the Q303, this is a totally new protocol.
I can take a look but having captures from only 1 stock transmitter probably won't allow to fully crack those protocols.
I can take a look but having captures from only 1 stock transmitter probably won't allow to fully crack those protocols.
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27 Oct 2016 06:29 #55431
by ajtank
Replied by ajtank on topic Cheerson CX35
Please wait for me to get a few more captures for the CX-35
a) high rate
b) return to home
c) still picture
d) video
I will post them later tonight
a) high rate
b) return to home
c) still picture
d) video
I will post them later tonight
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27 Oct 2016 13:15 #55439
by ajtank
Replied by ajtank on topic Cheerson CX35
More captures have been uploaded, thanks.
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27 Oct 2016 13:16 #55440
by goebish
Replied by goebish on topic Cheerson CX35
Thanks, I'll take a look at that during the week-end.
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04 Nov 2016 15:49 - 04 Nov 2016 15:52 #55678
by goebish
Replied by goebish on topic Cheerson CX35
Looks like the latest captures went wrong, only the first one is fine so I do not have the "take off" flag to make a test build.
Last edit: 04 Nov 2016 15:52 by goebish.
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04 Nov 2016 16:12 #55679
by ajtank
Replied by ajtank on topic Cheerson CX35
Sorry and I will redo the capture later. Enjoy your weekend.
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05 Nov 2016 06:51 #55708
by ajtank
Replied by ajtank on topic Cheerson CX35
Some captures have been redone. Please check if they are acceptable.
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05 Nov 2016 19:50 #55729
by goebish
Replied by goebish on topic Cheerson CX35
Looks good, I'll let you know if I need more.
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18 Dec 2016 15:17 - 18 Dec 2016 15:21 #56945
by goebish
Replied by goebish on topic Cheerson CX35
Here's a first test build:
www.dropbox.com/sh/rtlponu4hcctzcr/AABsu...zHk87LdpioQxP7a?dl=0
Select Q303 protocol and CX35 format option, I'm not sure at all it does work as the captures are pretty confusing.
Channel 5: arm (takeoff/descend)
Channel 7: snapshot
Channel 8: video
Channel 11: camera gimbal (should be assigned to a pot)
I couldn't find the RTH flag in your RTH capture ...
www.dropbox.com/sh/rtlponu4hcctzcr/AABsu...zHk87LdpioQxP7a?dl=0
Select Q303 protocol and CX35 format option, I'm not sure at all it does work as the captures are pretty confusing.
Channel 5: arm (takeoff/descend)
Channel 7: snapshot
Channel 8: video
Channel 11: camera gimbal (should be assigned to a pot)
I couldn't find the RTH flag in your RTH capture ...
Last edit: 18 Dec 2016 15:21 by goebish.
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18 Dec 2016 15:50 #56947
by ajtank
Replied by ajtank on topic Cheerson CX35
Thanks for the build. It can bind but cannot take off. Is take off = +100 and descend or idle = -100?
I will re-capture the RTH again tomorrow after work. It is now close to midnight and the quad is just so noisy.
I will re-capture the RTH again tomorrow after work. It is now close to midnight and the quad is just so noisy.
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18 Dec 2016 15:54 - 18 Dec 2016 21:40 #56948
by goebish
Replied by goebish on topic Cheerson CX35
Take off is supposed to be >0 (so, +100 is fine).
Well, at least it binds, that's a good beginning ...
Please make another capture where you just bind, take off then descend, without touching anything else.
Well, at least it binds, that's a good beginning ...
Please make another capture where you just bind, take off then descend, without touching anything else.
Last edit: 18 Dec 2016 21:40 by goebish.
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18 Dec 2016 16:07 #56949
by goebish
Replied by goebish on topic Cheerson CX35
Also, can auto altitude hold be disabled ?
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18 Dec 2016 16:22 #56950
by goebish
Replied by goebish on topic Cheerson CX35
I updated the build, please retry when you have a chance 
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18 Dec 2016 16:30 #56952
by ajtank
No, it cannot be disabled. The throttle stick is always centred. It also does not have headless mode.
Replied by ajtank on topic Cheerson CX35
goebish wrote: Also, can auto altitude hold be disabled ?
No, it cannot be disabled. The throttle stick is always centred. It also does not have headless mode.
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18 Dec 2016 17:05 - 18 Dec 2016 17:05 #56955
by goebish
FYI, most of those "toy grade" protocols are using 1 way communication, you can capture with the quad turned off, that doesn't matter.
Replied by goebish on topic Cheerson CX35
ajtank wrote: I will re-capture the RTH again tomorrow after work. It is now close to midnight and the quad is just so noisy.
FYI, most of those "toy grade" protocols are using 1 way communication, you can capture with the quad turned off, that doesn't matter.
Last edit: 18 Dec 2016 17:05 by goebish.
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19 Dec 2016 01:10 - 19 Dec 2016 01:27 #56966
by ajtank
Replied by ajtank on topic Cheerson CX35
Oh I don't know this. If it is 1-way communication then the RTH as well as other commands will be transmitted even without binding. This will save a lot of work.
I also got a spare receiver board. I can ship it to you after the trial build is ok. However if the algorithm is similar to Q303 then you probably do not need it.
I also got a spare receiver board. I can ship it to you after the trial build is ok. However if the algorithm is similar to Q303 then you probably do not need it.
Last edit: 19 Dec 2016 01:27 by ajtank.
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19 Dec 2016 13:49 - 19 Dec 2016 13:50 #56985
by ajtank
Replied by ajtank on topic Cheerson CX35
After loading the new build the binding becomes unstable. Binding is not 100% successful. Even if it binds, it lasts for a short time say 5s only. However I can take off during the short binding duration. I also have uploaded another RTH capture.
Last edit: 19 Dec 2016 13:50 by ajtank.
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19 Dec 2016 13:54 #56986
by goebish
Replied by goebish on topic Cheerson CX35
Ok, I think I understand why it is unstable, please retry with this updated version:
www.dropbox.com/sh/rtlponu4hcctzcr/AABsu...zHk87LdpioQxP7a?dl=0
Also, I think it's on low rate as it is now, can you confirm that ?
The dumps are quite confusing, I don't understand all the flags thoroughly.
www.dropbox.com/sh/rtlponu4hcctzcr/AABsu...zHk87LdpioQxP7a?dl=0
Also, I think it's on low rate as it is now, can you confirm that ?
The dumps are quite confusing, I don't understand all the flags thoroughly.
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19 Dec 2016 14:24 #56987
by ajtank
Replied by ajtank on topic Cheerson CX35
The binding is now stable. I however cannot determine if it is now low rate without flying outside. My last captures were all at high rate.
If you can detect the RTH flag in my last capture then I will redo the capture once again without the quad.
If you can detect the RTH flag in my last capture then I will redo the capture once again without the quad.
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