The SmartKnob View provides a programmable Nest-like experience #ESP32
Scott Bezek’s SmartKnob View is an open-source input device with software-configurable endstops and virtual detents.
A brushless gimbal motor is paired with a magnetic encoder to provide closed-loop torque feedback control, making it possible to dynamically create and adjust the feel of detents and endstops.
Features:
240×240 round LCD (“GC9A01”), protected by 39.5mm watch glass on rotor
BLDC gimbal motor, with a hollow shaft for mechanically & electrically connecting the LCD
Powered by ESP32-PICO-V3-02 (Lilygo TMicro32 Plus module)
PCB flexure and strain gauges used for press detection (haptic feedback provided via the motor)
8 side-firing RGB LEDs (SK6812-SIDE-A) illuminates the ring around the knob
USB-C (2.0) connector for 5V power and serial data/programming (CH340)
VEML7700 ambient light sensor for automatic backlight & LED intensity adjustment
Versatile back plate for mounting – use either 4x screws, or 2x 3M medium Command strips (with cutouts for accessing removal tabs after installation)
Front cover snaps on for easy access to the PCB
See the videos (one & two) below and more on GitHub.
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