mode swiching

 

Has anybody worked out how to set up the mode switching to achieve 5 or 6 modes on a Spektrum DX 8?

Any tips  would be great!   Best regards Nick

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  • I have done it !

    This is what I found .  The Spectrum radio seems to be very similar to the JR. the PWM values needed are here, the centre ones are what I came up with.

     

     

    Flight Mode #  --  Min. PWM  --  Ideal PWM  --  Max. PWM

                                    #5  --  1750  --  1763 --  >1815

                                    #4  --  1620  --  1683 --  1749

                                    #3  --  1490  --  1507  --  1619

                                    #2  --  1360  --  1428  --  1489

                                    #1  --  1230  --  1251  --  1359

                                   #0  --  <1165  --  1172  --  1229

     

    The way I acheived this was as follows

     

    Go to servo set up set Aux 1 to 65%-65%

    Set gear to 100%- 100%  (default)

    Go to mixing , select mix 3

    select GER >AUX1

    Set rate: to 19% and 31% ( these are the rates for gear sw pos '0' and pos '1')

    set Sw to gear 1

    Leave Offset at 0 %

    leave Trim: set to Inh.

     

    Then to check go into mission planner, connect the arducopter .

    Go into Terminal

    type in 'test'

     hit enter

     type PWM

     hit enter

     

    the numbers will start streaming, Channel 5 is the one to look at .

    select each mode and check the PWM is between the upper and lower limits.

     

    You then need to  hit enter ,come out of terminal

    Go back in to terminal and type set up

    hit enter

    type modes

    hit enter

     

    with both gear and aux 1 away from you this is mode 5 ( down 1)  this should be set to stabilise this way in a panic situation it is easy to remember to push both switches away from you to get control of the copter

     

    set the switches to the down 2 position

    push the aileron stick to the left to scrol through the modes when you reach the required mode for that sw position select the next sw position and so on.

     

    this is only what I have done I hope it is useful feel free to tell me if there is anything esier to do.

     

    The way I find it easy to remember the six modes is to think of it as down (gear) Aux1  123  and up (gear) aux 1  123   

     

     

  • There is a link in the manual here in note 4. http://code.google.com/p/arducopter/wiki/AC2_ModeSwitch.

    Hopefully, one of the JR/Spektrum tutorials can help you understand your radio's manual. This is an area where radio manuals are very lacking.

     

    I have always found the best way to learn mixing is to just hook up some servos to a receiver to see what happens, and then just start playing with a new model memory. Without the servos it's all just a jumble of numbers.

     

    If you get it working, consider writing a short blog for Chris to add to the manual. This is probably one of the most asked questions. All the existing tutorials have been written by users afaik.

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