AttoPilot Users Group

Smarter Cheaper Faster

Hi all, I received the atto at 6:00 pm friday, I began installing it at 9:00 pm and had it 90% ready to go by 3:00 am that morning....

My first flights were good but twice I had to take control to stop a nose dive. I belive with some adjustments to my airpseed zeroing and also my elevator P in the set file I will be able to relax a bit more on my next flight.

Installation is a breeze but the easy star is really too small for this system. I would recommend a plane with more room in the body.

The plane specs are as follows

Easy star (multiplex)
3530 1400kv outrunner
11.1v 2200mah battery
25 amp esc
long range RC
AUW 935g
Ailerons cut into stock wings
Atto pilot

The final thing to do will be to add about 250g of camera, mount and landing gear. I have had this plane fly very well at 1200g before so I am not concerned.

Views: 69

Comment by steve on August 4, 2009 at 5:30
an added note is that I really hope that my wishes and pestering will pay off and we will have control over the atto pilot via rc such as return to home and circle etc.

Also a final added note is the excellent customer service I have received from the Atto crew to get me in the air... here is hoping it continues because the support and quality of this device is why I paid the money... thanks guys!
Comment by steve on August 6, 2009 at 14:03
hey evans where are you in Alberta?

I tried a flight yesterday but I don't think the thermal piles were happy about the moisture content in the air and on the ground. I realise it has nothing to do with moisture but the ground was soaked (it had been raining for days) and the rain clouds were quite low and thick (but not raining) so when I put it in autopilot to set the home position the elevator went full up and the ailerons went full left.... I held the plane high, banked etc but it just held these full positions. Just for kicks I threw it in the air and sure enough when I engage auto it went straight up and banked. I just took it out of auto and cruised around trimming the plane and adjusting my thrust angle instead.

I wonder then is there some sort of failsafe built in so that if the piles are not satisfied then the atto tries to warn you by giving these positions? Kinda like fma tells you how good your calibration is at the field by blinking the LED.... anyway that would be a nice feature to me.
Comment by Gary Mortimer on August 6, 2009 at 16:42
Sounds like a sensor connection issue to me.

Cheers

G
Comment by steve on August 6, 2009 at 17:29
really? Ok I will check into it.... I hot glued all connections to the sensors but not the atto... I suppose if that is the case it may explain the nose dive in flight #1
Comment by steve on August 7, 2009 at 14:48
update, I changed nothing but went outside when the weather was better... the control surfaces move more like they are supposed to now.

Test flight today at lunchtime.
Comment by steve on August 8, 2009 at 5:45


this is my second flight... some tweaking to the elevator gain, throttle gain and setting the piot offset...
Comment by steve on August 8, 2009 at 5:46
kml aug 06.kmlhere is the kml file
Comment by steve on August 8, 2009 at 6:07

here is my planned route for the diy drones contest
Comment by Gary Mortimer on August 8, 2009 at 9:26
Well done Steve I look forward to your time!! You seem to have that circle hold working well.
Comment by steve on August 9, 2009 at 13:57

Here is it's first programmed autopilot flight. I made the turn wide than they need to be and I have the east star going quite slow. All in all a success. Not to review the log and see if there is some tweeking to do for next time. Then I will add a camera to the side of the plane.

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