TIDUC26 April 2022
This reference design uses inductive and hall-effect sensing technologies to provide a human-machine interface. The inductive sensing devices create eight different touch buttons on a seamless surface while the hall-effect sensor is used to create a magnetic dial that can rotate and be used as an additional button. Using an inductive sensing touch button provides a robust solution that uses the force of the press to determine a button press. This allows for touch buttons that can be used with gloves on while also ignoring environmental factors like dirt or damages to the button surface. The hall sensor dial creates a contact-less rotation that has improved wear and tear over traditional contact-based implementations such as potentiometers or rotary encoders.