 , the Command Module is no longer being sold.In 2014, iRobot replaced the original model with the Create 2, which is constructed from the chassis of remanufactured 600-series Roombas; instead of replacing the old command module, iRobot encourages the use of commodity single-board computers like Arduino and Raspberry Pi to provide additional processing power.Due to the limitations in storage space and processing power of the iRobot Command Module, many choose to utilize an external computer in controlling the Create robot.