Vielleicht hilft das Bild ja. Steht aber auch in der Beschreibung zu oXs_config drin.Dort Kapitel 6.2
* 6.2 - Voltages analog Pins *******************************************************************************************
* Analog pins (A0 to A7) can be used to measure up to 6 input voltages (please note that depending on manufacturer, some Arduino pro mini have less analog pins available)
* A voltage can be provided by a battery (e.g. a multicell lipo) or a sensor (e.g. a temperature sensor convert the temperature in a voltage that can be measured)
* Note : one analog pin can also be used to measure a current using a current sensor; the set up for a current sensor is described in section 6.5 (see below);
* Do not use the same analog pin to measure a voltage and a current.
* Take care : do NOT use pins A4 and A5 if you use a vario or an airspeed (those pins are reserved for the barometric and pressure sensors).
* The Pin value to enter in the oXs_config.h is a number from 0 up to 7 (0 means A0 = analog 0, 1 means A1, ...7 means A7).
* !! Take care that the voltage applied to Arduino pin may not exceed Vcc (normally 5 volt) or 1.1 volt (if internal reference voltage is used).
* It can be that you have to use voltage divider in order to reduce the voltage applied on Arduino pin compared to the voltage you want to measure.
* See explanation below about voltage divider and about using VCC or 1.1 internal voltage divider.
* Note : all voltages are measured to ground; so, for a multicell lipo, it will be max 4.2 volt for the first cell, 8.4 for the second, 12.6 for the third,...
*
* If there is no need to measure some voltage, set the line as comment or remove the line.
* Note: even if it does not make much sense, the same pin value can be used for several PIN_VOLTAGE (the voltage on this pin will then be measured for each PIN_VOLTAGE setup)
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#define PIN_VOLTAGE_1 0 Pin for measuring Voltage 1 ( analog In Pin! )
#define PIN_VOLTAGE_2 1 Pin for measuring Voltage 2 ( analog In Pin! )
#define PIN_VOLTAGE_3 2 Pin for measuring Voltage 3 ( analog In Pin! )
#define PIN_VOLTAGE_4 3 Pin for measuring Voltage 4 ( analog In Pin! )
#define PIN_VOLTAGE_5 6 Pin for measuring Voltage 5 ( analog In Pin! )
#define PIN_VOLTAGE_6 7 Pin for measuring Voltage 6 ( analog In Pin! )