You can find my slides of the elektor Expert Meeting 2013 here: elektor_ER2013_Maas.pdf [1,2 MB]
Also, you can find my presentation to the sun//well (RPi, MSP430 and ATTiny85) project here: http://www.nico-maas.de/wordpress/?p=788 as well as the video to that presentation: http://www.youtube.com/watch?v=MiSZzyuClGU#t=49m10