3 ms·
What if the metal base of the rotatable knob has a certain rotationaly asymmetric pattern instead of being completely flat? We would then be able to receive th
by heavenlyblue 7y ago
What if the metal base of the rotatable knob has a certain rotationaly asymmetric pattern instead of being completely flat?
We would then be able to receive that pattern and understand how the knob is rotated.
What’s the resolution of todays touchscreen?
- ethbro 7y agoIt's an interesting thought. You'd want to use a full bandwidth data channel (e.g. Bluetooth) for anything complicated. But for simple things, if possible without affecting the other parts of the screen, it'd be amazing to have a broadly supported, low bandwidth standard.
- gugagore 7y agoI can't really make sense of the bandwidth (information rate) of a tactile interface. A measure in units of length would make more sense to me.
- namibj 7y agoIt's enough for knobs of 1 inch spacing or wider, no easy support for fancy geared knobs that coaxially have a rough setting and a fine adjustment.
- ethbro 7y agoAny digital control signal effectively has a minimum bandwidth. This might be as simple as "Here's my encoded position * frequency of sampling", but for a general interface you'd want something adaptable. What if there were two dials on the control? Two dials and three buttons? One dial, four buttons, and a joystick?