crwdns2933803:015crwdne2933803:0
crwdns2933797:0Tobias Isakeitcrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Tobias Isakeit
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crwdns2933807:0crwdne2933807:0
- | [* black] Insert wisdom here. |
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+ | [* black] To read the turning of the bezel the Galaxy Watch uses a different approach than the [guide|113044|optical encoder of the Apple Watch|stepid=216189|new_window=true]. |
+ | [* black] There are three [https://en.wikipedia.org/wiki/Hall_effect_sensor|hall sensors|new_window=true] on the small PCB that have the same distance to each other as the groves on the bezel. |
+ | [* black] And every third grove there is a small magnet inside it. |
+ | [* black] Now when the bezel is turned two of the three sensors read a change in their magnetic field. Either on/off or off/on. The third sensor does not read a change. With this method it can be clearly determined in which direction the bezel is rotated. |