Texas Instruments LDC3114-Q1 Manual

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Design Guide: TIDA-060039
Inductive Touch and Magnetic Dial Contactless User
Interface Reference Design
Description
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.
Resources
TIDA-060039
SCB
LDC3114-Q1,TMAG5273, DRV2605
TLV755P, TCA9534, PCA9543A
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Inductive Touch and Magnetic Dial Contactless User Interface Reference
Copyright © 2022 Texas Instruments Incorporated
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