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  • Johann van de Venter August 21, 2014 at 12:33pm

    Just keep in mind that Opto ESCs dont have a BEC onboard so there is no 5V output on the servo leads. You will need an ESC with a BEC onboard

    • Franc > Johann van de Venter August 21, 2014 at 12:48pm

      yep, i have one Mystery with UBEC... I will try tonight!

      thanks everybody!

  • T3
    Stephen Zidek August 21, 2014 at 4:23am

    I have successfully done this a few years ago.  Works fine.  I had been running off one of the motor ESCs, but it kept browning out the ESC and causing that motor to cut for 1-2 seconds (too much heat I think).  So you're right to use a fifth ESC to power the APM, at least until you can get a real PM.

  • MR60
    Hugues August 20, 2014 at 2:53pm

    Hi,

    If the old ESC has a BEC producing 5V (less than 5.5v) you could use it to power APM ( from the output rail with JP1 on) or make a custom cable to use APM power port (JP1 off). However a PM would be better, cleaner (electrically speaking), provides V,I measurements.

    • Franc > Hugues August 20, 2014 at 3:58pm

      yes, i will order the power module anyway, but it's just for a temporary / weekend solution...

      • MarkM > Franc August 21, 2014 at 3:23am

        Will be fine.

        I use an apm 2.6 in my Fms Cessna with the motor esc powering the output side and an sbec to power the input side (jp1 removed) and the minimosd.

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