software cf.
https://github.com/sumotoy/easyT6963
OR  https://code.google.com/p/u8glib/
OR  http://code.google.com/p/arduino-t6963c/
atmel/EFIS_19264_V12_arduino_avionics.zip
https://github.com/jarzebski/Arduino-HMC5883L
https://github.com/bolderflight/BMI088
