Explaining Hall-effect, TMR, and other new types of "mechanical" switches
This article explains the mechanics behind modern contactless keyboard switches, such as Hall-effect and TMR sensors. It contrasts these newer technologies with traditional mechanical switches that rely on physical metal contact.
Why it matters
Understanding these technologies helps consumers make informed purchasing decisions for high-end gaming peripherals that promise increased durability and precision.
Contactless clacking, explained Explaining Hall-effect, TMR, and other new types of “mechanical” switches Ars Technica’s guide to new keyboard sensing technologies.
14 Varmilo's Flaming electrostatic capacitive keyboard switch. Credit: Scharon Harding Varmilo's Flaming electrostatic capacitive keyboard switch. Credit: Scharon Harding Text settings Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only Learn more Minimize to nav The mechanical keyboard isn’t always so mechanical anymore.
Over the past six years, keyboards with optical, Hall-effect, and other “contactless” switches have become increasingly common, often going for higher prices than traditional mechanical keyboards, which already command a premium over basic membrane boards. In return, they promise some theoretical advantages, particularly for gamers. In daily use, though, the differences can be pretty subtle.
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