New on Anelok TV: capacitive sensing
Werner Almesberger
werner at almesberger.net
Sat May 3 16:26:20 EDT 2014
Felix wrote:
> Of course being able to properly see the screen when "sliding" is a must ;)
Yeah, it would help to determine when to stop :)
> The other options don't allow that.
Not entirely sure about this. One would probably develop a movement
pattern that allows one to see the relevant bits of the screen. But
with the vertical movement, we should be on the safe side in any
case.
> Have the patented that?
Apparently:
http://www.patentlyapple.com/patently-apple/2011/04/apple-wins-patents-for-their-iconic-click-wheel-iphone-gesturing.html
> Mmmm, maybe contacting Samsung and asking for molding and tooling.... xD
Naw, Samsung's is a largely mechanical wheel. The fewer moving parts,
the better.
By the way, I made a first rough estimate for a north-south-symmetric
(1) Anelok case:
PCB size: 30.3 x 64.5 mm
Usable circuit area (2):
about 27.3 cm^2
Case size: 33.3 x 67.5 x 8.5 mm
Case volume: 19.1 cm^3
(1) I.e., whether used left- or right-handed, the display is always
vertically centered. The LED may have to be off-center, though.
(2) For the "core" circuit, without battery and user input mechanism.
For comparison, Anelok v0:
Usable circuit area:
about 27.0 cm^2
Case size: 84.4 x 29.4 x 10.5 mm
Case volume: 26.0 cm^3
Dimensions have a tendency of growing, but this doesn't look too bad.
There would be two PCBs: one with sensor and battery holder attached
to the top of the case, and one with the rest of the circuit in the
middle. They'd overlap slightly.
- Werner
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