Current (beta) designs and examples for the FemtoBeacon can now be viewed in the 'develop' branch of the FemtoBeacon github repository: https://github.com/femtoio/femto-beacon

18th of May, 2015 - Slowly filling in the MPU9250 library (C/C++). I need to implement a read/write adapter, so we can work with I2C or SPI. https://github.com/femtoio/MPU9250