自讀書時候認識磁石有南/北極...外,往後是什少再接觸其理論的,現連關於磁場方面的什麼單位也說不出了 玩過吓Arduino亦發現 ...

Hall effect sensors are everywhere right now. Keyboards, game controllers, and DIY kits use them for more precise inputs. But with any newly popular device, it can be easy to immediately jump onto the ...