SLYA058A June   2022  – September 2024 DRV5021 , DRV5032 , DRV5033 , TMAG5123 , TMAG5124 , TMAG5170 , TMAG5233 , TMAG5273 , TMAG5328

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Hall-Effect Sensors in Smart Locks
    1. 1.1 Tamper Detection
  5. 2Methods for Hall-Effect Based Rotational Position Sensing
    1. 2.1 Switch Implementation
    2. 2.2 Rotational Sensing With 3D Hall-Effect Sensors
  6. 3Summary
  7. 4References
  8. 5Revision History

Abstract

There are two main uses for Hall-effect sensors in electronic smart locks; tamper detection and position sensing of the deadbolt. The position sensing can be implemented in different ways with Hall-effect sensors depending on the level of information needed by the system. This document covers the different approaches to position sensing for electronic smart locks.