Saturday, June 30, 2012

The Storage Admin's DIY SFP Stylus

Check it out, the little rubber end-caps that come on some fibre SFPs are detected by a capacitative display!  It's only some of them.  We went through a pile at work and found that about one in five was able to impersonate a finger.  Dunno why it works, but it opens up some great possibilities for a DIY stylus.  (Maybe the rubber is doped with an EMF-blocking material.)

The discovery was pretty funny.  I was installing SFPs and tossed a bunch of the end-caps on my powered-on iPad for safe keeping.  The tablet went nutz from all the multitouches.

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