Datasheet

filteredData(

sensornumber

);

baselineData(

sensornumber

);

It returns a 16-bit number which is the number of counts, there's no unit like "mg" or "capacitance". The baseline is

initialized to the current ambient readings when the sensor begin() is called - you can always reinitialize by re-calling

begin()! The baseline will drift a bit, that's normal! It is trying to compensate for humidity and other environmental

changes.

If you need to change the threshholds for touch detection, you can do that with

setThreshholds(uint8_t touch, uint8_t release)

By default, the touch threshhold is 12 counts, and the release is 6 counts. It's reset to these values whenever you call

begin() by the way.

https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-sensor-breakout-

tutorial

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