8x8 RGB LED Matrix Control Board

Features

• Arduino Based
• 6 bit color support
  
• Hardware 16MHZ PWM Support
  
• No external circuitry needed!
  
• Dedicated GPIO and ADC Interface
• Supports hardware UART and I2C communication
• 24 channel constant current channel current up to 100mA per channel
• 8 channel constant current source driver current up to 500mA per channel
• Operating Voltage: 5 V to 5.3 V.
• Max Current: 300mA.
• Operating temperature range: -10C to 50C
• Board color may vary: blue or red selected randomly at time of delivery.
  

Hardware Features

• Supports cascading multiple boards (each board plugs into the next)
  
• Controls an RGB full color display using just a few pins
  
• Supports three kinds of mixed colors
• Easy to understand dot sequence using the Cartesian coordinate system
• External power supply ports
• When cascading multiple boards, the supply voltage can be increased to about 5.2v to keep them bright. Do not exceed 5.4V.
• When cascading multiple boards, all data lines connect to the 1st sub-board. ( The origin ( 0,0 ) where the sub-board for the 1st sub-board)

Reference: http://wiki.iteadstudio.com/Colorduino_V1.4