Hands up those who do not like to play! I was mad about the game Brain Training. But a few days ago I left my favorite console in the drawer because something else intrigued me. I am talking about STM32 Primer (the game received at the Seminar Silverstar NEWS2008-ST). Until the batteries have charged I was very impatient and curious at the same time. It is an easy-to-use game, thanks to the MEMS (micro electro-mechanical systems).