A joystick demonstrator for three dimensional magnetic Hall sensors
T.M.G. Brouwer (TU Delft - Electrical Engineering, Mathematics and Computer Science)
F. Voordenhout (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Karen M. Dowling – Mentor (TU Delft - Electronic Instrumentation)
Ilke Ercan – Graduation committee member (TU Delft - Electrical Engineering Education)
Jacopo Ruggeri – Graduation committee member (TU Delft - Electronic Instrumentation)
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Abstract
As novel three dimensional Hall sensors are being developed, it is important to be able to demonstrate their working principles and applications to other researchers and potential investors. One such application is seen in joysticks, which are more durable and reliable when they are made with Hall sensors compared to traditional potentiometer joysticks. In order to develop the joystick, readout mechanisms for multiple commercial Hall sensors are developed first. A joystick design configuration and permanent magnet are selected based on requirements and magnetic field simulations. The joystick is 3D printed and a demonstration screen showing the position of the stick and a moving ball is developed. The joystick has a delay of 9 ms, a maximum pitch of 61°, a resolution higher than 1° and an average error of 2.4° for the pitch and 1.59° for the rotation angle. However, this error may be due to the way the angle was physically measured, rather than errors in the measured magnetic field. Overall, the resulting joystick prototype functions more than sufficiently as a demonstrator.