Voltage Monitor calibration with 6S lipo

Posted by Sergio Couto on November 16, 2015 at 2:13pm

Hello. I'm using a pdb that accept 6S and gives voltage to Pixhawk, current/voltage sensor, 5V and 12V too.

But unfortunately i can't calibrate the voltage readings in mission planner. When i change the voltage appear an invalid number message.

Do you have any idea how i can calibrate it?

Thank you.

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Replies

  • Clifton Hipsher November 22, 2015 at 6:47pm

    What field are you changing?

    • Sergio Couto > Clifton Hipsher November 23, 2015 at 9:35am

      Measured Battery Voltage... The first field in the Battery Monitor screen.

      Isn't it?

    • Clifton Hipsher > Sergio Couto November 23, 2015 at 10:35am

      That's the correct field.  Did you sent the PM type to Other?

    • Sergio Couto > Clifton Hipsher November 23, 2015 at 11:50am

      PM?

    • Clifton Hipsher > Sergio Couto December 4, 2015 at 3:59am

      PM= Power Monitor, Battery Monitor..

    • Sergio Couto > Clifton Hipsher December 6, 2015 at 7:29am

      Sorry. Yes. Everytime i enter in the voltage monitor screen the type is set to OTHER.

    • Para > Sergio Couto December 11, 2015 at 11:50am

      Most 3rd party power monitor devices are geared towards APM and its 0-5V range. Pixhawk has voltage/current sensing on 3.3V analog inputs.

      If your sensor is 30V maximum and you plug a fresh 6S, that's 25.2V and your power monitor will output 4.2V, way above what a PH expects.

    • Clifton Hipsher > Para December 13, 2015 at 3:34am

      Do you have any test data to prove this?

      Another question, Does 3DR have separate PMs for the APM and Pixhawk?

This reply was deleted.