Xamarin USB Serial for Android
usb-serial-for-android is a driver library for communication with Arduinos and other USB serial hardware on Android, using the Android USB Host API available on Android 3.1+. No root access, ADK, or special kernel drivers are required; all drivers are implemented in Java. You get a raw serial port... More information
HydraMF Math
A math library for .NET Micro Framework. Contains definitions for Angle, 2D and 3D vectors, with Int32 or Single coordinates.
The angle is represented internaly in radians but can be created and read in radians, degrees and gradians. Supports arcminutes and arcseconds, useful for GPS coordinates. The explicit declaration of the units in creation and reading methods, reduces the tipical confusion when dealing with angles.... More information