Apr
22
Arduino Quad Core - Quadruino
2009

If your Arduino-based projects is very complex and one Arduino board is not enough try Quadruino - Arduino Quad Core.The Quadruino is based on a PCB with 4 ATmega328 Controller. The Quadruino enables the user to run 4 sketches at the same time, or in an alternative mode to combine the processing power of all four ATmega328.[link]
Latest Arduino board, Quadruino



