DIY haptic input knob: BLDC motor + round LCD

What people said

laurencei · 2024-07 · Strong recommendation

Hey OP - if your thinking about a smart knob with haptic feedback etc - check this open source project out that you can build yourself - its amazing: [LINK] Video demo here: [VIDEO]

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rzzzt · 2025-06 · Recommendation

Vaguely related - two encoder wheel projects on YouTube that might interest you: - "Wireless High Resolution Scrolling is Amazing": [LINK] - "DIY haptic input knob: BLDC motor + round LCD": [VIDEO]

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crote · 2026-05 · Reference

I'm not convinced it is that easy. Cars traditionally have very generic button clusters, like [0]. It is even very common to have dummy buttons in there. Combine that with today's cars where those buttons are hooked up to some MCU to send a CAN message instead of being hardwired to a function-specific cable in a giant loom, and it is suddenly quite easy to change button functionality quite late in the design process for basically zero cost: you just need a slightly different label print and a small firmware patch! Or, if you want to be 100% flexible, go with the ATM approach where physical buttons are placed next to an icon shown on a screen[1]. All of the flexibility and all of the tactile feedback! You can even go for a multi-level layout, with a top row of mode selection buttons, a bottom row of mode-specific function buttons, and perhaps even a big fat dial with haptic feedback[2]. Or even go all-out Elgato Stream Deck[3]. And sure, the fact that slapping in a giant touchscreen lets them decouple UX design from physical controls is going to play a big role. But it is by far the laziest and least user-friendly way of doing so. If that's the best you can come up with, you probably shouldn't be doing UX design at all. [0]: [LINK] [1]: [LINK] [2]: [VIDEO] [3]: [LINK]

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