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Measure volt only

Posted by stefan jakobsson on March 1, 2015 at 9:48am

I want to measure volt only because if using Attopilot or power module.You have to let all

the power go throw a shunt resistor if it break(no connection) you have no power and the copter

goes down.... Or have i miss understand the function?Any way if I use Pixhawk and connect 

two becs to it and measure only one bec using attopilot.Can that work?(see drawing)

As I understand you must have something that draw current throw the attopilot(powermodule)

Otherwise  current or voltage measurement will not work, or?power%20pixhawk.jpg

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Replies

  • Andre K. March 1, 2015 at 3:26pm
    The resistor won't break, it's able to dissipate enough power even if you drew seriously to much current.
    If you are seriously afraid of such simple component failing, you can parallel two, and calibrate, or parallel two of twice the resistance.
    • stefan jakobsson > Andre K. March 2, 2015 at 10:26am

      Ok that was a nice idea! But what do you think about connect everything as in the drawing?

      I will use two bec to pixhawk.

      • Andre K. > stefan jakobsson March 2, 2015 at 11:17am

        seems good :)

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