Reads the value from the linear potentiometer as a 10-bit number. This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. This yields a resolution between readings of: 5 volts / 1024 units or, .0049 volts (4.9 mV) per unit.
int : The linear potentiometer's position, mapped to a value between 0 and 1023.
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