<R16>
One or two Controllers per Robot. No more than two (2) VEX V5 Controllers may control a single Robot.• No physical or electrical modification of these Controllers is allowed under any circumstances. Attachments which assist the Drive Team Member in holding or manipulating buttons/joysticks on the V5 Controller are permitted, provided that they do not involve direct physical or electrical modification of the Controller itself.
• No other methods of controlling the Robot (light, sound, etc.) are permissible. Using sensor feedback to augment driver control (such as motor encoders or the Vision Sensor) is permitted.