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  • AhLee August 19, 2016 at 5:09pm

    dear Alexandre Heitor,

    thank you for the info of JP2, JP3 & JP4.

    now i shall not mess with it. :)

  • Alexandre Heitor Schmidt March 6, 2013 at 5:25pm

    Hi, Simon. This thread is a little old, but the doubt seems to prevail, so here's what I've found this far:

    JP1

    Your APM 2.5 board is designed to be powered by the included Power Module via the Power Port connector. You can, however, power it from an ESC or some other external 5v source, although that can be less reliable. If you do choose to use an alternative power source, you need to put the little jumper that came in the bag on JP1 pins, next to the new diode marked at the left above. If you want to explore other alternative power schemes, a guide is in the Appendix here.

    Source: http://code.google.com/p/arducopter/wiki/APM25board_Overview

    JP2

    Used for those needing to flash the board. This link shows information for 2.0 boards, but it works the same for 2.5, except the JP2 geographic location is different: http://code.google.com/p/arducopter/wiki/APM2Encoder

    JP3 and JP4


    I didn't find any info on those, except that they should be removed before you can actually upload a new firmware. This leads me to the conclusion that they're related to programming the board as well.

    Hope that helps...

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