VEX V5 Optical Sensor

Colour information is available as RGB, hue and saturation or grayscale and detection works best when the object is closer than 100mm. The proximity sensor measures reflected light intensity, and as such, the values will change with ambient light and object reflectivity. The gesture sensor can detect one of four possible gestures, an object (hand or otherwise) moving up, down, left or right over the sensor.

The Optical Sensor has a white LED to assist colour detection in low light conditions.