A fixed timetable is rare when studying. Putting together the modules for the first semester is therefore usually one of the first challenges while studying, which in Germany is very freely organized in many subjects and must (and may! :)) be designed independently.
The course of the first semester can and should be planned with the help of the examination and study regulations of the degree programme and the Information Portal Teaching. In the appendix of the examination and study regulations, you will find the standard study plan (curriculum), which suggests a distribution of the modules over the semesters of the study programme. All modules and courses of BTU are incorporated within the Information Portal Teaching, including the modules for the first semester. Further information can be found in the brochure Getting Started and - on the various student portals - in the tutorial series "Digital BTU".