Links :click on images
Among simulators i had tested, this one is very well-made and free (thanks to the transatlantic author). But do not forget that there is always a big step between the reality and the fiction! ( The virtual). The most sophisticated simulator cannot include easily "fiddles" with it's electronics that you put behind your beautiful arduino Uno card. Take care that this simulator is only UNO compatible (and equivalents).
Technology in secondary school "College Vauban" of Briançon
For those who say that courses of technology in secondary school stay the same as 20 years ago, and for the others to, I advise you to have a look to this site. You will certainly find interesting things, and, I hope that your vision of the future of education could positively evolve. Finally, I do not want to influence you and invite you to see by your own.