What does this sensor do? What benefits does it provide?
In: Technology
It’s “Hall effect sensor”. They’re called that because they use the [Hall effect](https://en.wikipedia.org/wiki/Hall_effect), discovered by Edwin Hall in 1879, to detect magnetic fields.
Being able to detect magnetic fields is useful for all sorts of things. If you put a magnet on one part and a Hall effect sensor on another, you can use the sensor to detect how far apart they are from the strength of the field. Game controllers are starting to use this as a robust way of detecting the position of the thumbsticks, for example.
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