SmartKnob

SmartKnob is an open‑source hardware/software hybrid rotary input device featuring software-configurable end-stops and virtual detents, facilitated by a brushless gimbal motor and magnetic encoder—offering programmable haptic feedback and a novel, tactile user interface. 240x240 round LCD ("GC9A01"), protected by 39.5mm watch glass on rotor. BLDC gimbal motor, with a hollow shaft for mechanically & electrically connecting the LCD. PCB flexure and SMD resistors used as strain gauges for press detection (haptic feedback provided via the motor). USB-C (2.0) connector for 5V power and serial data/programming (CH340). Versatile back plate for mounting - use either 4x screws, or 2x 3M medium Command strips (with cutouts for accessing removal tabs after installation).

Features

Hardware-software integration for custom tactile input design
Software-configurable virtual detents and end-stops
Closed-loop torque control using brushless motor and encoder
Onboard circular LCD display for visual feedback
Community-driven development with Discord support
Fully open source including hardware design and software

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License

MIT License

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

C++

Related Categories

C++ Hardware Platform

Registered

2025-08-18

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