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Male
About
Please tell us a bit about your UAV interest
aerial filming when travel DIY long endurance quadcopter
Hometown:
Hong Kong
Activity Feed
"Thanks randy ^^ greatly appreciate your effort in talking to us **ALL** !!
My flight log can be downloaded here:
https://drive.google.com/file/d/0B_T04E4z0FBlVl9SaGFPcmt4UkE/view?p...
I guess the funny error codes are indeed due to some single…"
My flight log can be downloaded here:
https://drive.google.com/file/d/0B_T04E4z0FBlVl9SaGFPcmt4UkE/view?p...
I guess the funny error codes are indeed due to some single…"
"hi tower~
I guess I am hitting a small bug. tower 3.2.0 crashes when I try to change parameter EKF_GPS_TYPE from 0 to 3. whereas I can change for example GPS_HDOP_GOOD parameter without a problem.
my arduCopter is 3.3.2-rc2 on pixhawk.
Thanks,…"
I guess I am hitting a small bug. tower 3.2.0 crashes when I try to change parameter EKF_GPS_TYPE from 0 to 3. whereas I can change for example GPS_HDOP_GOOD parameter without a problem.
my arduCopter is 3.3.2-rc2 on pixhawk.
Thanks,…"
"you can try giving your ESC+motor extreme change of throttle input. if there is out-of-sync issue waiting to happen, these test should kick them right out!
make sure you use your fight controller hardware to drive your ESC/motor speed. for making…"
make sure you use your fight controller hardware to drive your ESC/motor speed. for making…"
"Today tested AC3.3.2-rc2 on my quad-copter. It has a Lidar-v2 and px4flow.
In AC3.3.1, I was unable to arm in AltHold when FLOW_ENABLE = 1. It happened the GPS reception is also bad (so bad it couldn't pass the 3D-fix pre-arm check if I armed it in…"
In AC3.3.1, I was unable to arm in AltHold when FLOW_ENABLE = 1. It happened the GPS reception is also bad (so bad it couldn't pass the 3D-fix pre-arm check if I armed it in…"
"Hello,
While following the wiki to configure PX4FLOW and Lidar-Lite v2 on AC3.3.1, I am wondering when does the autopilot actually use the PX4FLOW camera. Would anyone mind to let me know if I am right or wrong in the following.
- Autopilot reads…"
While following the wiki to configure PX4FLOW and Lidar-Lite v2 on AC3.3.1, I am wondering when does the autopilot actually use the PX4FLOW camera. Would anyone mind to let me know if I am right or wrong in the following.
- Autopilot reads…"
"http://copter.ardupilot.com/wiki/altholdmode/#tuning
http://copter.ardupilot.com/wiki/arducopter-parameters/#throttle_ac...
make sure to study the wiki carefully. it is a very good online source."
http://copter.ardupilot.com/wiki/arducopter-parameters/#throttle_ac...
make sure to study the wiki carefully. it is a very good online source."
"if this feature is going to be in AC3.4 I definitely will install the 3.4-rc1 and test my copter immediately.
thanks for all the great work the AC3.3 is now more vibration resistance. If 3.4 has this feature than it is not only tolerate but even…"
thanks for all the great work the AC3.3 is now more vibration resistance. If 3.4 has this feature than it is not only tolerate but even…"
"Hi Randy, do you have any decision on how to resolve this issue?"
"I believe this is another scenario of "GPS-correction overriding pilot input". In my case I fly with rc8. My copter triggers battery failsafe LAND mode. GPS quality is very bad. It leans forward by itself regardless of my full-pitch-back input. I am…"
"Thanks Randy for your explanation.
So is it possible that when failsafe-land kicked in, I was actually fighting with the EKF/GPS? Maybe EKF/GPS was pushing the copter forward and my RC2 was pulling the copter back?
If this is true, I think the…"
So is it possible that when failsafe-land kicked in, I was actually fighting with the EKF/GPS? Maybe EKF/GPS was pushing the copter forward and my RC2 was pulling the copter back?
If this is true, I think the…"
"Thanks Randy for looking into my issue~ ^^
My landing/take-off point has poor GPS reception. This location is surround by tall buildings and a hill of 100~200 meters height. So I switch to alt-hold mode when I attempt to take-off and landing,…"
My landing/take-off point has poor GPS reception. This location is surround by tall buildings and a hill of 100~200 meters height. So I switch to alt-hold mode when I attempt to take-off and landing,…"
"Though a bit off-topic but I can share some data on my LiPo testing.
I think there are 2 issues mixed together:
1) LiPo "mAh" can be over-rated. The steep descent of LiPo terminal voltage may happen earlier than expected.
2) LiPo "C" can be…"
I think there are 2 issues mixed together:
1) LiPo "mAh" can be over-rated. The steep descent of LiPo terminal voltage may happen earlier than expected.
2) LiPo "C" can be…"
"Thanks Trent for looking into my log. That's my problem RC2 at max but no RCout response.
Around the moment after flight-mode = LAND (the green box in the plot below) :
- ThrOut = 65%
- RCOUT does not clip at max
- pitch follows nicely the desPitch.…"
Around the moment after flight-mode = LAND (the green box in the plot below) :
- ThrOut = 65%
- RCOUT does not clip at max
- pitch follows nicely the desPitch.…"
"What really strange to me is that "pitch" actually follows nicely with the "desPitch" as you can see from the plot.
It is the "desPitch" diverges from the "RC2" input. Why this can happen? Doesn't "desPitch" take input from "RC2"?
Thanks all for…"
It is the "desPitch" diverges from the "RC2" input. Why this can happen? Doesn't "desPitch" take input from "RC2"?
Thanks all for…"
"Hi all,
Sorry for re-posting several times on this forum as I was unable to catch attention from people ^^!..
Would anyone mind to have a look into my log? It was a flight with 3.3-rc8. During battery failsafe LAND, my copter didn't land straight…"
Sorry for re-posting several times on this forum as I was unable to catch attention from people ^^!..
Would anyone mind to have a look into my log? It was a flight with 3.3-rc8. During battery failsafe LAND, my copter didn't land straight…"
