After a week-end off I gently started working.
On monday, Alexis Polti spent some time with me to upgrapde my ubuntu to the 12.10 version and provided my computer with some useful tools and a proper coding environment. I also took time to configure some parameters to fit my personnal tastes.
On tuesday, I read “LINUX Magazine /France hors série ajnvier février, Initiation embarqué et microcontroleurs”. There was a really interesting part concerning basic electrical properties which I had forgotten over the time.