Seeedstudio Pixy CMUcam5 Sensor

Feature:

Pixy uses a hue-based color filtering algorithm to detect objects. Pixy calculates the hue and saturation of each RGB pixel from the image sensor and uses these as the primary filtering parameters.
Pixy remembers up to 7 different color signatures. If you need more than seven, you can use color codes (see below).
Pixy can find literally hundreds of objects at a time.
Pixy processed an entire 640x400 image frame every 1/50th of a second.
You can get a complete update of all detected objects' positions every 20 ms.
Pixy is unique because you can physically teach it what you are interested in sensing.

Specification:

Processor: NXP LPC4330, 204 MHz, dual core
Image sensor: Omnivision OV9715, 1/4", 1280x800
Lens field-of-view: 75 degrees horizontal, 47 degrees vertical
Lens type: standard M12 (several different types available)
Power consumption: 140 mA typical
Power input: USB input (5V) or unregulated input (6V TO 10V)
RAM: 264K bytes
Flash: 1M bytes
Available data outputs: UART serial, SPI, I2C, USB, digital, analog
Dimensions: 2.1" x 1.75" x 1.4"