Final seminar course project during high school: Design and implementation of a small flight data logger for model rockets. During the project I and my teammate designed and manufactured a small PCB with an ATmega mikrocontroller, an accelerometer, a barometric pressure sensor and an SD-Card. We implemented the firmware in Embedded C and wrote a small java application to visualize the recorded data. Even though the PCB was never added to a rocket its functionality was demonstrated successfully demonstrated by strapping it to a bicycle going up and downhill.