Ardupilot 2.7 Configuration For Dummies

I'm fumbling my way through configuring my UAV, and I'm not so good with the code as it has grown and changed a lot recently.  I have some wide-ranging questions, and I'm hoping some of the experts out there can weigh in on them.  So... running down the AP_Config.h file (and assuming an Easystar with rudder, elevator, throttle, EM406 GPS, thermopiles, red ArduPilot board, and blue airspeed shield):

1) Is it correct to say that STABILIZE mode still uses manual throttle, even if you have the blue shield with throttle control active?

2) How would I know if PITCH_TRIM and ROLL_TRIM are needed?  My assumption is that in STABILIZE mode the plane would climb (or drop) and be in a steady-state turn left (or right) if these are needed.

3) The comments for these say "deg * 100".  Does that mean that if I'm 10 degrees off I should use a value of 0.1 (since 0.1 * 100 = 10) or a value of 1000 (since 10 * 100 = 1000)?  My assumption is 1000.  If using the configuration tool, do I just put in straight degrees, or do I use a multiplier as above?

4) I'm not using an IMU.  Is AOA used for anything in my case?

5) If I have SET_RADIO_LIMITS set to 0 (no), do I take values from the Radio Min Max Values debug test and pop them into CH1_MIN, CH1_MAX, etc.?

6) If I'm using CH1 for rudder, how should I set CH4_RUDDER?  Or does it not matter if nothing is plugged in there?

7) A long time ago, there was the idea that people would post their config. files for various airframes.  Does anyone have a really good one for a stock (except for motor) Easystar posted somewhere?

I know this is a lot of questions... I appreciate any help I can get!

Thanks,
Charles

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Replies

  • Developer
    1 - stabilize uses manual throttle
    2 - leave pitch_trim, roll_trim to 0
    3 - Yes, 1 degree is 100, sorry C #defines make you do the math
    4 - AOA is not enabled right now, don't worry about it
    5 - yes
    6 - If you don't have CH4 connected don't worry about it
    7 - the current defaults will work for an easy star.
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