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Motor starts up suddenly !

Posted by Picea on March 10, 2013 at 1:26pm

I just started a couple of week ago with Arduflier and APM 2.5 so this a newbie thing absolutely.
Versions: Arduplane 2.7, Mission Planner 1.2.35


I have managed to do some flights, mostly still manual mode and a few short legs switching on the stabilize mode to see how it acts, so it flies and I can download logs etc..
But I'm having an unsolved problem with start up sequence. If I power the transmitter first and then the plane with APM, everything goes fine. But if I power the plane first, things are ok until I power the transmitter - that triggers the plane's motor on and there seems to be no way to shut it down but unplug the battery cable. What can be causing that?


- I have disabled both short and long failsafe parameters.


- It doesn't matter if the mode switch is on Manual or Stabilize or RTL (those are functions currently behind the mode switch) when powering, the same happens always.


- When the plane has powered on successfully (meaning when tx has been on), it doesn't matter any more if i shut off the tx and on again.

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Replies

  • Moderator
    John Church March 10, 2013 at 1:49pm

    Hi,

    I do understand the need to somehow prevent this in code, but RC rule number one- ALWAYS turn on the tx first. ALWAYS. Rule number one.

This reply was deleted.

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