Question: Is there any change in raw counts for a sensor over a period of time?
Answer: Raw counts is the function of capacitance of the sensor. So, as long as the capacitance remains constant over a period of time, i.e. environmental conditions like temperature, humidty etc. remain constant (so that the parasitic capacitance of sensor does not vary) over a period of time, the raw counts obtained from the sensor will not change as well.
