The capacitivesensor.h library for the Arduino code did not work as well as expected. Sometimes you just get results like this :-)
After some research I found the ADCtouch.h library which runs really well if you want to use a capacitive sensor as a toggle. Below I show both codes:
a) for Wall1 where three capacitive sensors trigger three pins on the sound board (see development of the soft circuit in next entry).
b) for Wall2 where just one sensor triggers the aerator
