Home Top 10 What is a Hall effect sensor? The joystick and keyboard tech explained

What is a Hall effect sensor? The joystick and keyboard tech explained

What is a Hall effect sensor? The joystick and keyboard tech explained


You might have heard about Hall effect joysticks over recent years, primarily owing to issues with stick drift on the Nintendo Switch. If you’re wondering what they are, here’s our simple explainer.

Hall effect sensors have been around for some time but they are now cropping up in joysticks and keyboards alike. The technology has some benefits that some more seemingly modern options do not offer.

Whether you’re considering a product with hall effect sensors or you’re just wondering what the technology is ahead of it potentially cropping up on more devices in the future, we’re here to help. Read on for the basics.

What is a Hall effect sensor?

A Hall effect sensor is an electronic device that records an input when variance in a magnetic field is detected. Hall effect is named after the scientist Edwin Hall and his discovery in 1879.

In the context of switches used in gaming and computing peripherals, Hall effect sensors are found in keyboards and gaming controllers. The sensors detect a keypress or joystick movement using the Hall effect. It can be beneficial as, like optical switches, there is no contact between parts, avoiding wear and tear – the cause of stick drift with Nintendo’s Joy-Con controllers.

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Again, like optical switches, Hall effect switches are also beneficial in terms of speed, avoiding the delay in response that some mechanical switches feature. Hall effect switches can offer a degree of customizability as well, letting you adjust the actuation point, such as with the Corsair K70 Max keyboard.

The team at GuliKit created its own Hall effect joystick for Joy-Con replacement kit to help users fix the wear and tear issue which causes stick drift on the Nintendo Switch. A patent application has hinted Nintendo is working on a solution for Joy-Con drift, potentially for the Switch 2, that will use Hall effect sensors (via Dexerto).


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