VEX V5 Vision Sensor

Give your driver the chance to see things from the robot's perspective. The Vision Sensor is capable of detecting up to 7 colors at once, including multi-colored objects. Connect a phone or tablet to the V5 Robot Brain through built-in WiFi to stream a live feed of your robot's view to your device.

Other features include: Tracks up to seven individual colors at once Analyze objects for advanced tracking and path planning Built-in Wi-Fi radio Compatible with VEX IQ

The Vision Sensor provides a robot with new capabilities and allows for expanded learning. It uses a dual ARM M4/M0 processor for object detection at 50Hz. At its most basic mode it tells you where a colored object is located. The location's X value gives you the position right and left. When the camera is tilted down, the Y value gives you the distance to the object, with a little basic trigonometry on your part.