Added Plan control in the background
TODO: change layout completely (just show plan modes and connected
devices)
	Additional data may also be displayed (error rate, battery lvl, etc)
	
ISSUE: the Arduino is receiving corrupt packets (the bit of most weight
in some bytes is misread). The origin could be twofold:
	-the Android App is sending bad packets
	-the Arduino or DF Bluetooth loose precision (~3.3v)