To get access to course material subscribe to google group. You can use either a @studenti.uniroma1.it or a @gmail.com account.
Google Group: Embedded Systems Sapienza (Menichelli)
ACCESS PERMISSIONS TO FILES ARE GIVEN AUTOMATICALLY TO ALL GOOGLE GROUP MEMBERS.
After the approval click here to access course material
If you are getting Error 404 on the above link:
you have not subscribed to the Embedded Systems google group (see above)
you are not currently logged with the google account you subscribed