This thesis has been done at the Unversity of Örebro for Örebro University Hospital (USÖ). In our work we have developed a product for hearing tests to determine hearing thresholds of small children. Our product contains software and a control surface for controlling two separate screens. One of the demands was that our software could handle big file libraries. Reliability and simplicity were essential for the user.
In our work we have utilized programming of both microcontrollers and Windows software. We have also connected the control surface with the software via serial communication.
We have developed a prototype which can be seen as a finished product. Our product is safe for future use and compatible with newer versions of the Windows operating system. As of yet, it has not been tested in a real life setting.