Aileron settings gone with radio calibration

Archive
1

Hi!

I am having a problem with my aileron setup with AP 2.76:

I use one servo per aileron, and have one rx channel to control both of them. My second aileron is on APM output 5, so I have RC5_FUNCTION = 4.

This works well until I recalibrate my radio using the mission planner: because I have nothing connected to APM input 5, after calibration I get RC5_MIN=1500, RC5_MAX=1500 and RC5_TRIM=1500 and my aileron won’t move anymore. I have to manually change these back to the values I want, and then it works again.

Is there any way to disable the radio calibration for a specific channel? Or some other way of getting around this?

2

currently there is no way to not include a specific channel.

3

Thanks for the response!

Is this something that happens in the Mission Planner, or in the ArduPlane? Is there a chance that another ground station software might behave differently in this respect?

4

how often are you calibrating the radio? most people only do it once.

5

This is a good question! I am just setting up my Arduplane and have not flown it yet. I am under the impression that I would have to recalibrate each time I have changed the trims on my transmitter so that Arduplane would know when my sticks are centered.

I have flown the plane (skywalker) without Arduplane so my trims should be in the right ballbark to start with, but I expect that I will have to add a few clicks here and there during the first test flights with Arduplane on board.

I would be glad to find out that recalibration in such a case would be unnecessary!

6

This is a good question! I am just setting up my Arduplane and have not flown it yet. I am under the impression that I would have to recalibrate each time I have changed the trims on my transmitter so that Arduplane would know when my sticks are centered.

I have flown the plane (skywalker) without Arduplane so my trims should be in the right ballbark to start with, but I expect that I will have to add a few clicks here and there during the first test flights with Arduplane on board.

I would be glad to find out that recalibration in such a case would be unnecessary![/quote]

Take a look at TRIM_AUTO: plane.ardupilot.com/wiki/ardupla … eTRIM_AUTO

On the other hand, this sounds like a bit of a bug (in ArduPlane, not the mission planner). I will talk to tridge about it. Meanwhile, I’m moving your thread to the plane forum.