4.1.1 Bluetooth Manager
Clicking on the Bluetooth Manager quadrant opens up a window
(Figure 4) that enables the user to manage Bluetooth devices—
which, for our purposes, usually correspond to Arduinos. Within
this module, users can discover nearby Bluetooth devices and pair
with them. This is a process that must be undertaken once for
each Bluetooth enabled Arduino before any communication can
happen between it and the phone.