An In-Depth Look At The Haptic Smart Knob


At Hackaday, we enjoy those people moments when we get a opportunity to adhere to up on a project that we’ve now highlighted. Typically, it is for the reason that the project has sophisticated in some substantial way, which is always great to see. At times, nevertheless, new facts on the original project are readily available, and that is exactly where we locate ourselves with [Scott Bez] and his haptic good knob job.

Inform audience may possibly remember [Scott]’s announcement of this job back in March. It designed really a splash, with favorable remarks and a typical “Why didn’t I feel of that?” vibe. And with superior motive the create top quality is fantastic, and the idea is very simple nonetheless impressive. By attaching a knob to the shaft of a brushless DC motor and mounting a compact circular Liquid crystal display monitor in the middle, [Scott] arrived up with an enter system that could be reprogrammed on the fly. The BLDC can supply digital detents at any interval though creating haptic feedback for button pushes, and the Liquid crystal display display can supply user feedback.

But how is these kinds of a detail designed? That is the subject of the latest video clip, which has a ton of neat style and design specifics and create insights. The significant obstacle for [Scott] was supporting the Liquid crystal display monitor in the center of the knob when still letting the knob — and the motor — to rotate. Element of the answer was, sadly, a hollow-shaft motor that was out of stock quickly just after he launched this task with any luck , a appropriate substitute will be offered shortly. Yet another neat aspect is the way [Scott] designed tiny pressure gauges into the PCB itself, which select up the knob presses that act as an input button. We also observed the way button push haptics are supplied by a fast jerk of the motor shaft pretty clever.

This is a person of all those tasks that appears to be like a resolution waiting around for a challenge, and some thing that you’d create just for the coolness factor. Hats off to [Scott] for adhering to up a sweet build with similarly juicy facts.


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