• Nope, not HID.

    The desktop application side is listening for events that are incoming from a ROS topic over a websockets connection (with roslibpy).

    The bridge between puck.js and ROS is a very trivial webpage (source) that connects to the puck.js, and starts an interval to send over the knob's value (an analog pin read) (and also the capsense value, that I didn't use so far). That same page publishes the value to ROS topics via websockets as well.

    All and all, it's extremely simple, but it uses a bunch of very unrelated technologies. ;)


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