This sensor shield V2.0 is easy for fans to plug and play with. For some starters, it is difficult to add circuits on it, so this sensor expansion board which can connect most senor shields to control panel solves the problem easily. It meets the expansion needs of most board. It's is an open-source physical computing platform based on a simple i/o board and a development. It can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP).