DJI A2 PLEASE READ BEFORE YOU BUY (New firmware may change my opinion)
- Thread starter Droider
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soler
Member
To be honest it's working well for me. Position hold is good, seams really fixed in position but a little twitchy in high wind but stays in place. No problems with the receiver transmitter connection as I am using a Futaba radio. No random fly aways like you have reported. It could be better by having a S.Bus port out so that you could use the full set of available channels so I still have a second reciever for the Z15
Flying with a S800 and Z15
Andy
Just curious on the way points. Why do you want way points and what are you going to use them for?
Droider
Drone Enthusiast
Thanks Andy
I have TEN usable channels in the assistant. It just seems that with the Spektrum set up there is something not right. how many channels do you have with ther Futaba and which radio are you using?
The Gimbal control is totally shabba. I have a Radian on the roll but the tilt is just all over the place and the speed setting is a joke as it restricts the amount of tilt you can get NOT the speed!
Any one else getting anything usable?
Dave
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I use eight waypoints per floor. With the Naza 2 I can do two floors per mission. This is from a panorama shoot for a realestate client last week. Rightmost icon is for fullscreen. No waypoints=no job.
http://www.zemhtech.com/panoramas/BigSkyCam/CondoViews/Floor 15c.html
Cheers,
Andy
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soler
Member
I have the 8FGS Transmitter. So I have 12 channels plus 2 digital channels, I can assess all though the A2 (not sure about the digital channels) but there is only 4 outputs on it so not enough to control the zen, that is why I am using a second receiver for the zen linked to the same transmitter.
With the A2 I am using 8 channels. 7 internal channels which are throttle, elevator, ailerons, rudder, flight mode, IOC and one Pot for gains the external channel is for the landing gear (I could use the intelligent gear which will free up a channel but I need to test this). The zen uses the remaining 6 channels.
I have not tried the gimbal control yet but may give it a go to see if mine has the same problems as you mentioned.
With the A2 I am using 8 channels. 7 internal channels which are throttle, elevator, ailerons, rudder, flight mode, IOC and one Pot for gains the external channel is for the landing gear (I could use the intelligent gear which will free up a channel but I need to test this). The zen uses the remaining 6 channels.
I have not tried the gimbal control yet but may give it a go to see if mine has the same problems as you mentioned.
My Naza 2 with ver 4 firmware was flying like it was stapled to the sky, zero twitch. Don't see how the A2 could be any better.
People over here. . . http://www.multi-rotor.co.uk/index.php?topic=4561.0 seem to be using it OK Dave, is there something in your set up that's causing the problem?
Peter
Peter
Carapau
Tek care, lambs ont road, MRF Moderator
I think Dave is a fair bit ahead of the the guys on the multi-rotor.co.uk Only one of the guys seems to have got in the air so far according to the thread in the link and he hasnt done extensive testing yet it seems. It would be good to hear if others are having similar problems.
Jumpy07
Member
Suppose quite a few variables at play...that said A2 has much better sensors than Naza.. and GPS is much more sensitive, I was always slow to get GPS lock on Naza.. A2 locks in seconds.. can only restate .. my A2 is a lot more locked in than the Naza on the same frame.. but early days for me.. my hex is 6kg and 950mm.. DJI don't recommend the Naza for frames larger than 650mm.. that said I know a lot of people that use them on large frames fine. Not knocking the Naza.. I have a few and they are great.. just comparing it against A2 on the same frame.
All good news
BTW my Naza 2 is on a large 1000mm octo, a cinestar clone from Famous Hobby.
Hi Andy and Jumpy07, I am new to this all but would eventually like to use drones for commercial use. One of them was in realestate. Can I please ask a few questions about your experience and business? I live in US in the midwest. BTW Jumpy07, Very cool bird and setup.
-Terry
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ChrisViperM
Active Member
Hi Terry
Have a look at this thread if you are interested in the business side of Multirotors:
http://www.multirotorforums.com/sho...ly-long-term-as-a-creative&highlight=business
Regards
Chris
Have a look at this thread if you are interested in the business side of Multirotors:
http://www.multirotorforums.com/sho...ly-long-term-as-a-creative&highlight=business
Regards
Chris
Droider
Drone Enthusiast
Well
I have now removed the A2 from the new ADX and replaced it with a WKM and I now have my comfy slippers back!
Issues
GPS fly away as whitnessed by Speed Gonzalas and Eyball. On a shoot we a real nightmare from the start
Issue 1 Gimbal control
We had a whole load of mither getting the gimbal control to function for tilt. The gains are ridiculous with any adjustment other than 50% locking it up or reversing the action.
Speed control is useless all it seems to do is limit the movement of the tray and does not reduce the speed for TX contol of tilt. (this was an issue in the early days of the WKM)
Issue 2
Gimbal affecting gains
I tested and tested my A2 to death with a fixed weight to represent the camera and gimbal load. and got it pretty dialled. BUT then we attached the gimbal and it went in to shake down! There is a note in the assistant that "says if you experience shaking/vibration after you have set the manula control speed in the gimbal pain reset it to factory"! USELESS
Issue 3
GPS. This is the most scary one. I can fly her for 1 pack or ten and you never know when its going to take off to god knows where. After sorting out the shaking after the gimbal was fitted we resided ourselves that we would just not use any tilt in the shot which was bloody annoying. That said once we got the gains sorted with the gimbal on she flew nice. It was very windy with really strog juste and she held position nicley and the Radian/CX730 combo got some nice panning shots locked in GPS to the spot. I was getting more confident. We moved on to some other sets and even though the wind was horrific she managed to get some usable footage. Our last shoot of the day was some down hill bikers. flying in atti between the trees was as usual a bit nerve racking but we got the shots required. The light was amazing so I thought I woud just do a slow climb out of the forrst to reveal the mountains and the surrounding Forrest.. Flying in atti up through the trees I got to a point that revealed the most amazing scene, so flick to GPS and start my pan...... whoosh as soon as I flicked to GPS she was off at 32º somewhere! Flicking back in to atti stopped the dash for china and with shaking hands I brought here back down to a hover in front of us.. flicked to GPS adian of off she went.. this time a small christmas tree and a rapid flick back to atto brought here back under control.
So when I got home I ordered up a WKM and that is now what is on the machine and she is once again flying lovely.. and I have full telemetry.
I have another A2 machine sat here with a replacement WKM to go on it until the issues are sorted out.
Conclusion
Gimbal control 0/10
General flight characteristics in atti 9/10 great streight line flight and smoooooth as you like
GPS lock. to the spot. amazing accuracy BUT unpredictability with my unit makes it useless 0/10
TX interfacing. NO telemetry available unless using iosd (idont) so no temps, secondary GPS reporting, Voltages and altitude possible UNLESS you go for the subs adaptor (not available) so you can use a standard receiver that supports telemetry to your TX.
I am sure these issues will get sorted but for now unless my A2/GPS is faulty its useless.
I am going to persevere with the machine I still have an A2 on and its just waiting for the weather to clear up and I will go fly to see if it behaves better in GPS than the first one. If it does then I will send the first A2 back for testing by DJI... thats if they are bothered.
If you want a challenge go for it, if you want comfy slippers stick with the WKM until I can get mine flying nice and reliable
Dave
I have now removed the A2 from the new ADX and replaced it with a WKM and I now have my comfy slippers back!
Issues
GPS fly away as whitnessed by Speed Gonzalas and Eyball. On a shoot we a real nightmare from the start
Issue 1 Gimbal control
We had a whole load of mither getting the gimbal control to function for tilt. The gains are ridiculous with any adjustment other than 50% locking it up or reversing the action.
Speed control is useless all it seems to do is limit the movement of the tray and does not reduce the speed for TX contol of tilt. (this was an issue in the early days of the WKM)
Issue 2
Gimbal affecting gains
I tested and tested my A2 to death with a fixed weight to represent the camera and gimbal load. and got it pretty dialled. BUT then we attached the gimbal and it went in to shake down! There is a note in the assistant that "says if you experience shaking/vibration after you have set the manula control speed in the gimbal pain reset it to factory"! USELESS
Issue 3
GPS. This is the most scary one. I can fly her for 1 pack or ten and you never know when its going to take off to god knows where. After sorting out the shaking after the gimbal was fitted we resided ourselves that we would just not use any tilt in the shot which was bloody annoying. That said once we got the gains sorted with the gimbal on she flew nice. It was very windy with really strog juste and she held position nicley and the Radian/CX730 combo got some nice panning shots locked in GPS to the spot. I was getting more confident. We moved on to some other sets and even though the wind was horrific she managed to get some usable footage. Our last shoot of the day was some down hill bikers. flying in atti between the trees was as usual a bit nerve racking but we got the shots required. The light was amazing so I thought I woud just do a slow climb out of the forrst to reveal the mountains and the surrounding Forrest.. Flying in atti up through the trees I got to a point that revealed the most amazing scene, so flick to GPS and start my pan...... whoosh as soon as I flicked to GPS she was off at 32º somewhere! Flicking back in to atti stopped the dash for china and with shaking hands I brought here back down to a hover in front of us.. flicked to GPS adian of off she went.. this time a small christmas tree and a rapid flick back to atto brought here back under control.
So when I got home I ordered up a WKM and that is now what is on the machine and she is once again flying lovely.. and I have full telemetry.
I have another A2 machine sat here with a replacement WKM to go on it until the issues are sorted out.
Conclusion
Gimbal control 0/10
General flight characteristics in atti 9/10 great streight line flight and smoooooth as you like
GPS lock. to the spot. amazing accuracy BUT unpredictability with my unit makes it useless 0/10
TX interfacing. NO telemetry available unless using iosd (idont) so no temps, secondary GPS reporting, Voltages and altitude possible UNLESS you go for the subs adaptor (not available) so you can use a standard receiver that supports telemetry to your TX.
I am sure these issues will get sorted but for now unless my A2/GPS is faulty its useless.
I am going to persevere with the machine I still have an A2 on and its just waiting for the weather to clear up and I will go fly to see if it behaves better in GPS than the first one. If it does then I will send the first A2 back for testing by DJI... thats if they are bothered.
If you want a challenge go for it, if you want comfy slippers stick with the WKM until I can get mine flying nice and reliable
Dave
Droider
Drone Enthusiast
I use Spektrum for the telemetry.
Still have no A2 flying. Stick with WKM there are some right good deals out there at the moment.
Dave
hexacop
HexaCop
If you are looking for telemetry I can recommend Unilog2 or Unisens-E
Both are compatible with many telemetry systems of various brands, like Futaba, Graupner, Jeti, Multiplex,
Even the German shop is 'German' language only there are translations of the manuals available:
http://www.sm-modellbau.de/shop/shop_content.php?coID=100
I use Unisens-E in all my copters and have got one additional Unilog including temperature and 150A current sensor for test purposes and when I need to record all the telemetry data for later use.
If you need more information just let me know...
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