This product can now be purchased at www.ghielectronics.com. Compass module for Gadgeteer. This module is designed for low field magnetic sensing with a I2C interface for applications such as compassing and magnetometry with 1°to 2°heading accuracy. It is suitable for applications like navigation system, consumer electronics. Requires socket Type I. Features Gadgeteer socket type I 3-axis magneto-resistive type sensor Up to 116 Hz maximum output rate Built-in self test Resources Drivers Source Code Eagle Files External Links you need to download the following software to start your Gadgeteer: Development tool : Microsoft Visual C# Express 2010 Micro framework: Microsoft .NET Micro Framework 4.1 SDK The Gadgeteer core, mainboard SDk and module driver(GHI) You can download these tools at : http://tinyclr.com/support