Quaduino - an arduino-based educational quadruplex-computer-system / Bastian Luettig, Constantin Frey, Johannes Reinhart, Michel Bunza, Jan Freyhardt, Jiajun Li, Benedict Roth, Johannes Wuebbeling, Bjoern Annighoefer, University of Stuttgart, Institute of Aircraft Systems, Pfaffenwaldring 27,Stuttgart, Germany ; Deutscher Luft- und Raumfahrtkongress 2023