Quote Originally Posted by rsocor01 View Post
... suggestion of using a 16F726 with a "capacitive sensing module" but I'm afraid that for this technique to work is going to require that your body has to be grounded.
This statement in the datasheet seems to indicate a ground isn't required ...
Quote Originally Posted by 16F726 datasheet
The capacitive sensing module allows for an interaction
with an end user without a mechanical interface. In a
typical application, the capacitive sensing module is
attached to a pad on a printed circuit board (PCB), which
is electrically isolated from the end user.