In the context of digitalization, the digital acquisition of measured values is becoming increasingly important in the sciences. Various systems are available on the market for this purpose. An alternative to commercial products is inexpensive, home-made systems for acquiring measured values with microcontrollers like the Arduino board. The Arduino board can be programmed to read various sensors to provide answers to a problem. Hence, the digital acquisition of measured values is also a point of connection for Computational Thinking. In this case, too, it is not absolutely necessary to have programming skills, but it is helpful

• to be able to understand the corresponding program codes (called sketches) and
• to be able to make minor modifications to the program codes yourself.

Arduino uses an open-source platform. In this way, the students gain insights into the “black box” during acquisition of measured values: By retracing the program codes, the students will clearly see how the measured values are generated.

Instructions for experiments with the Arduino can be found in section 8.1 Basics of microcontroller programming – using Arduino.