Numeric values will be sent to an EV3 bluetooth mailbox and can be used in the LEGO Mindstorms software:

• First 2D Coordinate -> Mailbox x (or a)
• Second 2D Coordinate -> Mailbox y (or b)
• 1D Coordinate -> Mailbox z (or c)
• Buttons 1-4 -> Mailbox w (or d)
• ABCD: Activate Mailbox a,b,c,d
• WXYZ: Activate Mailbox w,x,y,z

Range of values for coordinates : -100 … 100
Range of values for buttons: 1 … 4

Requirements:

• Lego Mindstorms EV3 Brick
• Program for the EV3 Brick (developed by yourself)