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ESC PWM Pinout Help!

Discussion in 'Phantom 2 Help' started by wbal57, Mar 4, 2015.

  1. wbal57

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    an anyone help me with the Phantom 2 ESC's ? I am looking for the pinout of the connector on the top left of this picture. I believe it is PWM and Positive voltage for the attached LED's on the back.

    [​IMG]

    I need to know which one is + - and signal so I can attach this to an alternate flight controller.
     
  2. loganboyd

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    There is no picture in your post
     
  3. wbal57

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  4. dirkclod

    dirkclod Moderator
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    Welcome to the forum wbal57 :)
     
  5. yorlik

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    Paul Harden reverse engineered the esc and published a 7 page pdf with all signals, scope pix, schematic. He put it up somewhere for easy download but I do not recall where.

    Not sure if I would be allowed to post it here but I could PM it to you if you want.
     
  6. jason

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    The one in white vinyl (plastic) is + and other is the shield which is ground. In fact if you look at the module they are both as to what they are. V for voltage. G for ground.
     
  7. yorlik

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    the flying lead coax is power; v is 11v from battery, g is ground (common). Neither is LED sig.

    4pin connector P1 gets the LED sig. PWM like motor control. P1 pin 1 is LED pwm pin 2 is ground (common). Pin 3&4 are tied together for redundancy and are the motor pwm command sig.
     
  8. N017RW

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    Pins 3 & 4 are tied together and are Motor speed PWM.
     
  9. compugician

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    Hi!

    I am sending a PWM signal on pin 3, and the motors do not spin.

    Is it not enough to send just a PWM signal? (I'm using a servo tester)

    Where can I get the Paul Harden PDF on these ESCs?
     
  10. N017RW

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    Not sure this is what others referenced but here's a set:
    viewtopic.php?f=5&t=28252

    Go to the bottom of the first post for a 'zip' file to download which contains the ESC and main PCB.

    These are not official DJI documents!
     
  11. jason

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    That plug only goes in one way.