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Jaw dropping project, but need a little help.

Posted by Pieter van Woerkom on August 4, 2011 at 7:53am

Every year our club holds a 'family day'. Every year i try to show something the other members have never seen before.

This year i want them to drop their jaws over a monocopter. Allso called an Charybdis. The aiframe is ready now i need a little help to reconfigure the APM so it will do the job, It will i am sure of, but some minor modifications to the code is needed. In the current configuration im not able to run the servo from an motor output because the PWM freq is way to high. An other thing is the center position of the servo is only controllable by the throttle. Ok who can / will help me to fix some minor code things? Got the compiler up and running and i can read / understand the code, only the lack of system configuration and inner workings of the APM hold me back rewriting on my own.

 

greetings,

Pieter

 

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Replies

  • Pieter van Woerkom August 4, 2011 at 11:18am

    Checked a new one.

    As we need throttle for arming and presetting the simple mode. i neey an Y for my RX3 channel.

    Duh.... what about all those mixers in my TX just routed CH3 100% to CH5 and use RX5 to drive my ESC.

     

  • Pieter van Woerkom August 4, 2011 at 11:06am

    Checked 1 more.

    • APM -> Heli mode
    • MODE = SIMPLE
    • Servo at Servo1
    • Swashplate position servo1 at 90deg (yes i know about precession so this swashplate position of the servo might change to 0 or 180deg)
      • Try to get more angle from servo as power introduces 'collective' (maybe reset CH3 min/max)
        Did it by setting:3692247760?profile=original

     Open:

    • RX3 directly to motor.
    • Reduce PWM updaterate because servo is twitching and fluttering.

     

  • Pieter van Woerkom August 4, 2011 at 10:56am

    Status so far:

     

    • APM -> Heli mode
    • MODE = SIMPLE
    • Servo at Servo1
    • Swashplate position servo1 at 90deg (yes i know about precession so this swashplate position of the servo might change to 0 or 180deg)

     

    Open:

    • RX3 directly to motor.
    • Try to get more angle from servo as power introduces 'collective' (maybe reset CH3 min/max)
    • Reduce PWM updaterate because servo is twitching and fluttering.

     

     

     

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