Yes! All students receive a ticket for public transportation which is similar to the "Deutschlandticket", which means you are allowed to take most local public transport in the whole of Germany without further costs. Since last semester, you no longer need your validated Campuscard as a ticket. Now you need to show a QR-Code ("Deutschland-Semesterticket") with your smartphone. With this ticket, you are unfortunatly allowed to take a bicycle into trains / metros, for that you need to buy an additional ticket. Find more information on applicability and registration here.