Crius AIO v2 Battery Monitoring is floating

[dreamer2000oe]

Hi!

I connected my 4S Battery via two Resistors (0 - 5V max input) to one of the A0-A5 input pins.
The default VBAT_PIN A0 and all other Ax pin overwrites seem not to work. The GUI/App always shows a floating voltage 0 - 25 V... (depending on the correction factor).

What could be wrong? Is there an extra A-GND hidden?
Is there a schematic available to check the connections to the ATMega from the plug?

I'm using Multiwii 2.4

Thank you very much,
Tom

[Hamburger]

If resistor values of the voltage divider are too high then the input sees floating value.

If by floating you mean 2 lowest bits then it is known inaccuracy effect.

To identify pin and reading code do correspond one can force input to ground and vcc. The resulting values and changes will be help identify correct addressing of pin