SLYA093 September   2025 TMAG3001 , TMAG5253

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Benefits of Hall-Effect Sensors
    1. 2.1 Hall-Effect Sensors for Keys
    2. 2.2 3D Hall-Effect Sensors for Knobs
  6. 3Keypress Design Considerations
    1. 3.1 Simulating Keypress Design
    2. 3.2 Keypress Bench Results
  7. 4Keyboard Design Example
  8. 5Summary
  9. 6References

Abstract

When discussing keyboard applications, Hall-effect sensors can be used for keypress detection and 3D Hall-effect sensors can be used to detect angle rotation as well as button presses for knobs. This document includes how the added configurability offered by Hall-effect sensors can be used for keyboard applications.