1) The device uses the following USB connectors:
		- Program USB from Arduino DUE, for programming the device
		- Native USB from Arduino DUE, for future applications
		- Host USB from USB shield, for MIDI HOST connection

2) Tune the R2 trimpot for the best display contrast

3) The following jumpers need to be set on the shield:
				VBUS POWER 5V
				Power supply 3.3V
				Power supply 5V

4) Tune the R7 trimpot to obtain a voltage of -0.55V (negative) on
   test point J1.

5) Connect the Menu push button according to "additional_schematic.png"

