Spirograph on Oscilloscope: Laboratories in Series for EE101

Laboratory is an important part of learning electronic circuits. We re-organized the laboratories of the traditional course and tied the labs in a chain. An interesting toy, Spirograph, is modeled and implemented with the most basic electronic components through the lab chain. A detailed course and circuit design are illustrated in the paper. Open circuit design solutions are also welcomed and some examples are detailed in the paper to improve the performance. Positive feedback on this course is obtained from the students.