Numeric values will be sent to an EV3 bluetooth mailbox and can be used in the LEGO Mindstorms software: First 2D Coordinate - Mailbox x. Second 2D Coordinate - Mailbox y. 1D Coordinate - Mailbox z. Range of Values: -100. 100. Requirements: Lego Mindstorms EV3 Brick. Program for the EV3 Brick Android 2. 1 or higher.