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Typhoon H 480 PX4 v1.10 (Stability issues ;-)

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While the Thunderbird is as easy yet more comfortable to fly than the stock typhoon, it opens a whole new world of possibilities for aggressive/dynamic flying and automated missions. And with those, crashes may happen every now and then. As Yuneec's supply of spare parts and spare drones is what it is, this has kept me busy for the last week or so... ;-)


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h-elsner

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This is a good idea to keep the frame modular. There is only a need to replace what is really broken.
Also a good platform to create a barebone Thunderbird for sport and fun.

br HE
 
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Discover the ON/OFF LED sequence will be useful too.
The LEDs are driven by the ESCs of the drone and they can be toggled if required. However at the moment, the ESC driver is using almost its full allocated memory, and that being one of the most critical components of the system, capable of spectacular malfunctions, I'm going to leave them just on for a while. The ESC driver "application" should be modified to communicate over uORB "communication bus" to ST24/RC input "application" for the light switch to work. Not a big deal, but as we're running close to memory limits, I'll leave it for now as it is. Also any modifications done to that driver/part of the PX4, are such that require a lot of testing before I can dare to release it... ;)

Another interesting feature of the "TAPESC" driver, is the capability to reverse the running direction in software. That may (will!) find some use, after I've completed the printable model of the Thunderbird (with some TH compatible parts). I may take another look at the LEDs also then. ;)
 
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Awesome work and I have in mind to implement it on my drone. If you need any parts for testing let me know. I have a few FC's and other parts like mainboards and so on. I want to help to see a finished product. Do you know this can be implemented on the H plus or do they use a different processor? Also on this Thunderbird can I use different motors? I have in mind a project to build a hexacopter to be used with my insta 360 one R and to use the hardware from a typhoon H or H plus. I build the one in the picture and I use Inav on it but it is not that stable as I want to be. I tried on a different build to port the board from an H plus I got it to work but the motors I use (the same one as in the picture) won't spin. That was an embarrassment for me because I decided to build everything without testing first :)))
 

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A and B motors have different inclinations. How do you measure the angle and what is the value to not measure it here too?
Few degrees. :D I'm going to make a some kind of printable assembly jig for them. It's not that precise, the inclination is there to provide some yaw authority, that makes the Typhoon/TB so enjoyable to fly. Another drones with inclined motors (that I know/have flown) were DJI's S1000 airframes, that were very similar to TBird to fly (very sweet) although their overall mfg quality was pretty poor. Hexacopter or octo without inclined motors is much more sluggish and inprecise in yaw, despite of flight controller tuning.
 

h-elsner

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Discover the ON/OFF LED sequence will be useful too.
55​
55​
04 (len)​
14 (msg type)​
09 (comp ID)​
00​
EC (CRC)​
55​
55​
04​
14​
09​
01​
EB​

I think 01 is off but I'm not sure.

To change the home altitude ST16 sends also message type 20 but with lenght 7. Examples:
55​
55​
07​
14​
0B​
14​
1E​
71​
78​
FF​
55​
55​
07​
14​
0B​
AC​
26​
71​
78​
67​
55​
55​
07​
14​
0B​
AC​
26​
70​
78​
72​
55​
55​
07​
14​
0B​
A0​
28​
71​
78​
A3​
55​
55​
07​
14​
0B​
20​
1C​
72​
78​
E7​

br HE
 
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