Arnie, if you load the parameter that steven was running on his that should be ok for all your settings and you would just have to adjust any settings to do with having a different throttle maybe!!
I did read somewhere that you need to increase the throttle more than 50% for it to take off!! and obviously when returned to half way again it would hover at the current altitude.
I remember steven posting on facebook about throttle curves for the pixhawk as his was not climbing fast until he made some changes and apparently he had some help from 3DR to set his parameters for the splash drone.
Might be worth a dry test run with no props once you got parameters sorted, let it idle and see when you increase the throttle where it starts to increase the revs for take off!!
That sounds like the plan.... I put props on last night indoors... started up holding stick at bottom and let it carefully...gradually go to center. The motors spun up a lot faster as I knew they would, but not enough to make it try to lift off. So it should be ok... Just a different experience from the spash auto or dji where the motors are basically at idle when the stick is center. I will load the parameters over the weekend and see if there is any difference. I doubt I will be able to test fly this weekend because of the storm heading this way...That puts me out at least another week for a first test flight weather permitting...
They did mention sprung throttle and one of the developers said he has used it, so I might join there and ask a couple of questions to him!
May be worth proceeding with caution with the different modes as I believe they differ to the splash drone. If I read correctly the stabilized mode is actually a manual mode with no assistance from the flight controller as in barometer/compass/gps.....
alt hold will use the barometer to maintain the height automatically but just thought id make you aware in case you did not know about the stabilised mode!!!!!
Delboy, Been reading also.. Stabilize mode is auto level so the controller keeps the bird level but you control the height. Alt hold is more like atti mode where the barometer maintains height, but still no gps and it will drift. Loiter mode is gps assisted mode. There is a series of video's that goes through set up , flight modes, etc. on the painless 360 channel at youtube. This is a link to the first one www.youtube.com/watch?v=uH2iCRA9G7k
Now that I have a better idea how everything works, i am in the process of stripping everything down to figure out the best permanent mounting positions for everything. BTW the controller does not need to be pointed with the arrow to the front, it can be mounted in any position you want as long as you apply the offsets in mission planner. The shell is very tight for mounting everything. I will send a picture of my final solution once i have it figured out.
I did try putting the Pix 90 degrees sideways so it was oriented like the original auto controller but pushed all the way to the front. That provided less room than the way its done in the pictures from the above links.
The build that I did includes the following:
Pixhawk- Hobyking HKPilot 32 / External GPS 915 mhz mavlink radio Minum OSD in plastic case for fpv Splashdrone video transmitter Splashdrone gimbal controller board Pixhawk USB - Led module
In order to make everything fit, I had to put the mavlink radio on the power board and then stacked the minum osd on top of it.
I stuck the video transmitter to the same side of the drone as the R9D transmitter for the RC. They are now on the left side of the drone.
I put the splashdrone gimbal controler on the Power board and the usb led on top of it. Those components are held down by Velco so they can be easily removed.
This is a really really tight fit, but it does all fit and with the GPS on top of the lid, the interference created by all the electronics will hopefully not be an issue.
The HKPilot/Pixhawk is held to the board with the anti-vibration foam tape supplied with the kit.
The power module is simply laid in behind the battery.
I used the power connector that originally supplied the auto controller as an aux power input to the Pix for a redundant power connection since the Pix supports this. The main power connection is off the power module which monitors the voltage and current.
I put a second mast up to bring the video antenna outside since the hole is there anyway and it seems to have improved the video from the limited testing I have done so far. Once im done testing everything, I will seal the hole to make it waterproof.
Everything is up and running, calibrated and ready to go for a test flight. Probably wont happen for a while due to the current blizzard and my travel schedule. Would not anticipate being able to test fly until at least middle to end of Feb so this will probably be the last post on this subject for a while.
You are right, Pixfalcon does not have aux servo outputs, but with the quad, there are 4 unused outputs. I am far away from home now, but one I back next weekend, I will look at the Mission planner if it is possible to output gimbal on unused channels 5-8. I know that shutter control can go on channel 8. For me follow me mode is also very desiranle to film our wakeboarding sessions. I don't see this useful for any activities on the land, because it cannot avoid obstacles and in many cases it is limited by the maximum speed. PixHawk is a capable controller, but there is a reason 3DR decided to use a separate computer for all smart functons with their Solo.
Just want to confirm, that you can setup RC5-RC8 outputs to control the gimball in Mission planner. The main difference in output on those channel compare to Aux outputs is PWM frequency is 400Hz instead of 50Hz. Looks like it shall not be an issue with the BGC based controller that comes with Splash Drone. I am still waiting for more details on reliability of their design. There are some reports on glitches with altitude during switching modes, but I would prefer their compact design over full size PixHawk. Also. they have OSD and telemetry module on a single board, which would save even more space. You can find it in HK store.
I am very impressed with Arnie's progress on integrating PixHawk and very interested to see the flight times and how the interference is worked out by moving GPS/compass on the mast.
Flew my first successful flight with the Pixhawk Splashdrone today. Did not have a lot of time so only up for a short flight. Flew pretty good on default settings. I was going to try to do an auto tune, but stopped after it auto landed on its own. Did not initially understand why and did not want to push my luck so I stopped at that point. Upon getting it home and downloading the log, it appears it auto- landed due to the low battery failsafe being tripped. Not sure why as the OSD showed it was still over 15 volts and the failsafe is set for 14.4. Have to research if there is a timer for how long it has to be at the min voltage for the failsafe to kick in. Im thinking it may have dropped voltage when I goosed the throttle at one point. In any case, I was very pleased at how it flew with no tuning at all.
Word of warning for anyone else trying this. My first flight attempt, the drone immediately flipped over upside down when trying to take off. Turns out I had the motor 2 and 3 wiring flip flopped by accident. The mission planner has a screen where it lets you press a button and run one motor at a time to test. This was how I figured out the wiring was wrong.
Also having a log is a great thing, as I can now actually see everything going on and be comfortable with how the drone is performing as opposed to just praying with the auto controller. They should really add some logging to it. With the auto controller you are kind of really flying blind. Both the Dji Phantom 3 and the Pixhawk provide logging which is a huge help and really gives me a feeling of comfort being able to confirm things are running as expected. The Pixhawk is super configurable which can be both a blessing and a curse depending on your perspective and how much time you want to put into it. There is a lot to learn....
Arnie, congrats on the first flight. I had a lot of troubles calibratibg power module to show correct voltage on my other PixHawk. The best way I found is to run a full baterry drain test on the floor with connected voltmeter and reverted propellers to prevent take off. It would be harder to do on Splash Drone because you can' t mount propellers opposite way. Logs are the best feature on PixHawks they have tons of information, but you need to know what to look for. Try the automatic log analysis tool in Mission Planner. It is very good to pinpoint problems. By the way, how you attached the gps mast on the cover? I would look at possible options to attach it on the shell.
Hi Vladm, Thanks for the info. As far as I can tell the battery is reading properly. I did have to adjust the voltage at one point to show the measured voltage, it was off a few tenths of a volt. It seems fine since then I check periodically at different battery levels when its on the bench and it seems to match. I have found the auto log analysis tool and you are correct, thats how i figured out that my auto land was due to low battery. Unfortunately it will be a while until I can test again, but so far this is working out, and for me will be the right solution as I like to have the level of control over things along with visibility that the Pixhawk provides.
I have the antenna screwed down to the cover as this seems like the best place. I initially tried to bolt it to a plate that was for testing hot glued to the bottom of the drone, but I did not like this solution as the mast was sitting pretty close to the props and also was closer to the motors which could cause more electro magnetic interference. There is really nowhere it can go on the shell because of the props and the angles on the shell.
The sprung throttle may need a little work but is not a show stopper. In alt hold or Loiter mode, the props spin faster on the ground than what you would expect, but the drone doesnt lift off untill you push the stick up.. In stabiliaze mode the drone will lift off with the throttle at center positon, but only a few feet high. Playing with the throttle curve on the controller may fix this at some point, but for now I want to get everything else worked out first. Probably the best answer is to find somewhere to get the tension spring for the controller from. If the tension spring were to be installed, the left stick would still spring back left and right, just not up and down and the problem would be gone. Im thinking It may not be a big deal operating without the throttle spring and it seems like thats the standard setup for a pixhawk.
HI All, Back to flying again. Flew 3 batteries today...Found out not to trust the failsafe autoland. It does work, but is ending my flights too short.. I purchased a SKYRC Imax charger and now have visibility into the battery charges.. With the Pixhawk set to autoland at 14.2 volts, which is how I believe the Auto controller was set up, I have been landing at around 5 - 6 minutes of flight with the gimbal/camera attached. With the new charger I can see that the batteries were only around 45-50 percent depleted, since the charger shows the amount of mah it is putting back into the battery. From everything I have read, its safe to deplete the batteries to around 80 %, so the failsafe autoland has been making the drone land much too soon which makes sense since I use to get around 10 minutes with the auto controller and the electronics draw very little current compared to the esc's and motors so the change in the electronics should have a negligible effect on flight time. Im dropping the auto land voltage to 14 v which should be safe and will re tune the voltage sensor and see what happens. BTW, I read a few posts today about people having issues with the Auto not holding altitude properly. From my experimenting, I can tell you the cover has a huge effect on this. I have tried flying without the washer and also with a small unsealed whole on top, since I put the FPV antenna and GPS on the cover and had to run the wires through a hole. In this configuration before sealing the cover and using the rubber gasket, I had LARGE altitude swings with lateral flight, with the bird dropping significantly as it traveled forward. After sealing the hole and using the gasket, the issue has gone away completely and there is very little vertical change with a straight lateral flight. I had this same effect with the Auto controller and the Pixhawk. Just an FYI if it helps anyone.
Hi Arnie, I am glad to hear about your progress. I have some progress on my drone as well. Here is my PixRacer setup. It comes with own PDB, I've added mini telemetry, will add mini OSD and planning to run Gimbal, camera and LED lights on a separate battery. I am replacing almost everything. Still planning to keep GPS/Compass inside and may be move compass out from GPS if I have to shield GPS from EMI. Also got some waterproof connectors for the gimblal, but still not sure if I want to use them. There is a big chance to brake them in a crash.
jefroe64: thanks for the reply. still up in the air, so to speak. I'll keep looking.
Aug 3, 2019 0:20:36 GMT
workevader: Hi, new to forums all together. Was wondering if anyone knows how to check to see if you need to update the firmware before you actually do it? Not sure where or how to ask this in a thread or whatever.
Jul 28, 2019 21:33:13 GMT
sharkstewards: Problem with monitor- static image and red/green light when turned on. Moisture? Advice?
Jun 10, 2019 23:51:25 GMT
ocrich: Hello, I have a new sd3 and the 4K camera doesn’t work... dead. The other factory camera seems to work ok but often not at all. Seems to be intermittent. The 4K is totally dead, any ideas if it’s a software issue or camera issue ? Thanks
Apr 16, 2019 8:19:00 GMT
cj49660: Need help updating my spry, is this the place for help?
Apr 13, 2019 19:27:09 GMT
palometa: I have tried repeatedly to update the firmware over the last month...many times...with no success.
Mar 14, 2019 14:04:00 GMT
markdal: Hi Guys, I don't have my Splash Drone ye. I am in the process of closing don both my Companys, of which I am the Chief Pilot since 2007. In retirement I intend to use a Splash Drone from my boat. Not sure of posting here?
Feb 15, 2019 6:45:34 GMT
skillzmb: 360 Cam on Splash drone!!
Jan 4, 2019 0:23:28 GMT
atlantic: Camera Lens Fogged? It clears when I leave it over a low heat source but fogs up again within 30 mins after being removed?
Nov 13, 2018 9:28:25 GMT
zuluboy: I don't want fly until I'm sure the commissioning is good,
Oct 25, 2018 8:18:12 GMT
zuluboy: Hi Any out there with some knowledge of body replacement on Splash drone 3 auto, need wiring diagram on the motor connections, transferred all the guts to new body, marked the motors wires all seems fine tested without props, one motor running hot
Oct 25, 2018 8:15:52 GMT
ambudrone: Wherever direction I push the joystick, the motor stops to that direction.
So if I push it forward then the two frontal motors stop. If I push it backwards, then the two motors at back stop. can anyone find a quick solution? THX
Sept 13, 2018 13:18:30 GMT
propwash: screnegar: I suggest you get the latest user manual and read it MANY times. And, read all the threads in the PRO discussion. Download the latest PRO firmware V2.3, install it and learn how to use the Flight Assistant software.
Sept 12, 2018 1:16:07 GMT
propwash: screnegar: SplashDrone PRO Discussion, 7th thread "Wire connection receiver to flight controller Help"
Sept 12, 2018 1:08:34 GMT
screnegar: Also do you repair Drones?
Sept 10, 2018 18:21:22 GMT