Stensat StenBOT Rover Kit, Manual

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Processor Board Pinout
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The analog ports are highlighted in yellow.
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Six analog inputs are available: 0,1,2,3,6,7.
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The analog ports allow the measurement of
voltages from sensors that generate a voltage
based on what is being measured.
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Each analog port has 10 bit resolution and an
input range of 0 to 5 volts. Signals beyond this
range need to be converted to operate within the
0 to 5 volts or damage may occur.
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The processor has an analog to digital converter
or ADC to convert the analog voltage to a digital
value. The ADC has a 10 bit resolution which
converts 0 to 5 volts to a number with a range of
0 to 1023. It is a linear relationship.
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To calculate the voltage
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voltage = ADC/1023.0 * 5.0