How does GPS hold work in latest NG code?
Does it matter the altitude? It will hold the altitude? I understand you can fly normally but when you let go it will bounce back to that hold position?
Can you use it as a type of auto recovery in case you lose orientation or control? Will it recover from an out of control situation by just letting go of the controls and letting it fly back to the hold position?
Replies to This Discussion
-
DeveloperPermalink Reply by Randy on -
f11,
Yes, it will hold it's altitude but it won't work as auto recovery.
To give you a big more confidence check the mag and gps first:- make sure you have a mag connected. and check the configurator to ensure that the artificial horizon shows your heading correctly. While you're using the configurator you can also change the position hold's maximum angle to 10 or 15
- make sure you've got a heading lock before you take off (blue flashing light on the gps goes solid - if you're using the Mediatek).
Take off and get the quad up to 5 meters or so and get it's altitude somewhat stable. Flick the auto pilot on for a few seconds and then off. If nothing unusual happened then do it again but for a longer period of time.
One of a couple of things are likely to happen:
- it'll hold it's position fairly well
- it won't seem to do anything - probably didn't get a gps lock for some reason so you're still in 100% control
- it starts flying away - maybe you've acidentally turned on acro mode?
-
Permalink Reply by steve F11music.com on -
Randy, I installed my mag yesterday and am doing some testing today. I set the max angle to 12 and it is finding north in the horizon view.
I'm going to do a test now but I'm curious why my Pitch Axis and Roll Axis don't stay the same in configurator. What would cause it to have to be adjusted or is that normal after some flying?
Here is a copy of my config screen. Everything seem normal?
-
Permalink Reply by steve F11music.com on
-
I just turned it on now to test it again and set it on the ground for a few minutes to see if it would get a lock and then turned on the hold switch and the red light finally came on. Now I see the switch turns the orange light on and off and the red stays on. I go to test it again. Wish me luck :)
-
Permalink Reply by steve F11music.com on
-
I'm getting the red light now but it's not holding a position or if it is, it's a 20 meter square. I end up pulling it back manually when it starts to drift too far. Is there anything I can monitor in configurator to see what is going wrong?
-
Permalink Reply by Sebastian Gralla on -
do you have xbee connection?
if you have, I would type "4" in serial monitor
it should display:
GPS.Time; Lattitude; Longitude; GPS.Altitude; Ground_Speed; Ground_Course; GPS.Fix; sattellite count
-
Permalink Reply by steve F11music.com on
-
That must be it because when i connect to it via configurtor via xbee, i get a solid blue on the gps but get this in the serial monitor.
0 0 0 0 0 0
-
Permalink Reply by steve F11music.com on
-
Thanks Randy! I will try that. So if it works you will know because if you fly away from the hold point, and let go of the controls it will bounce back to that position? I live on top of a mountain and have really good GPS signals so I think getting a good lock should not be a problem.
-
Permalink Reply by steve F11music.com on
-
I don't have a magnetometer installed yet but I'm using the mediatek GPS. Should I not try this until I have a magnetometer?
-
DeveloperPermalink Reply by Randy on -
F11 - i'm afraid it won't work without a mag. the reason is that the quad needs to know which way is north. You might think that the GPS could be used to figure this out but actually it can't because in a quad you don't tend to go straight forward very much. you're moving back and forth all the time and the GPS updates are (relatively) slow.
-
Permalink Reply by steve F11music.com on
-
Good I asked. I will wait until the mag arrives next month. Which one is working best?
-
Permalink Reply by Sebastian Gralla on
-
which one is suggested? Right, the DIYDrones one.
read the wiki!!
-
Permalink Reply by Michael Mashlan on -
So what happens if you switch on the GPS hold without mag? I've tried it and my quad tries to fly away. (and no it's not the acro switch by accident) I'm just curious as to what it tries to do if it doesn't have a mag?
Social Networking
Top Content
Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
Groups
-
Japan ArduCopter Group
58 members
-
Andropilot Users Group
204 members
-
ArduCopter User Group
1356 members
-
Nitro-powered Arduplane …
15 members
-
ArduPlane User Group
721 members
Advertisement
© 2013 Created by Chris Anderson.
Powered by
