THE VIDEO SHELF · haptic input devices
DIY haptic input knob: BLDC motor + round LCD
A two-minute demo of SmartKnob View, an open-source input knob built from a brushless gimbal motor, magnetic encoder and round LCD. Closed-loop torque control gives software-defined detents and end stops.
Why HN readers recommended it
HN people hold it up as a polished solo hardware project and the go-to example of haptic knobs, including in discussions of physical car controls.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- scottbez1
- Topic
- haptic input devices
- Format
- demo
- Level
- intermediate
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 6
- Recommendation years in dataset
- 2023–2026
These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.
From the original HN conversations
Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.
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]
laurencei on Hacker News · 2024-07
In Reverse-engineering my speakers' API to get reasonable volume controlVaguely 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]
rzzzt on Hacker News · 2025-06
In Ask HN: What Are You Working On? (June 2025)
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.