It has actually gotten to a point where often time is the most "expensive" component of hobby/open-source hardware projects- while the cost of CAD software has decreased (mostly due to competition and increased demand that allows to spread the development cost over larger customer base), the productivity of CAD-related tasks has not increased much, if at all.
If the designer happens to be here, I have a question regarding the circuit. Is there any protection against voltage produced by a user's rotation of the knob? The TMC6300 IC that the schematic shows is directly connected to the BDCM without any intermediate circuitry, but the only 'protections' listed in its datasheet are related to failures related to the motor being used as a motor, not as a generator.
There are probably some best practices that I'm missing though (diode on the main supply maybe?), so if anyone knowledgeable wants to chime in, I'm all ears! (Or I suppose pull requests are welcome too).
As a musician, I think the introduction of haptics to electric/electronic instruments allows you to move in unexplored aural directions, which is sometimes very musical.
One of the problems with "Cool UX," is that it is too "in your face."
I know of what I speak. I have designed "cool" UX elements for most of my career.
It's a mistake I keep making. I guess I like the challenge.
One of my latest efforts, is a "prize wheel" spinner for Swift (iOS/iPadOS, via UIKit)[0]. I have considered creating a SwiftUI version of it (and even started work on that), but I can't justify it.
It's really very lightweight, high Quality, and easy to use.
I keep on not using it in my projects, because it's too "attention-grabbing." There's a reason that waitstaff usually wear black.
3Dconnexion SpaceNavigator
https://www.amazon.com/3Dconnexion-3DX-700028-SpaceNavigator...
And then there are the bigger siblings to that, which basically add a bunch of buttons around the SpaceNavigator:
3Dconnexion SpaceMouse Pro
https://www.amazon.com/3Dconnexion-3DX-700040-SpaceMouse-Pro...
3Dconnexion SpaceMouse Enterprise
https://www.amazon.com/3Dconnexion-SpaceMouse-Enterprise-31-...
Sadly it's too big and costly to put into a dimmer switch, but maybe I'll get it as a general peripheral.
https://www.youtube.com/watch?v=ip641WmY4pA and so on.
Definitely a project I want to make when I have some free time.
When the surface that the gauge is attached to flexes, the PCB itself actually stretches and shrinks by a very small amount, on the order of a thousandth of a percent. This causes the long conductive trace to get slightly longer, which measurably increases its resistance.