Olin Lathrop wrote:
>
>Conductive rubber contacts will have a different average
> > resistance when pressed down hard than when pressed lightly. A micro
> > could observe the last 100-200 presses
>
> Or have the button squeeze a piezo to produce the power to send the IR
> code.  Then pushing harder really does make it go farther <g>.


Just to get eccentric with the idea, what about
using a piezo gas-oven lighter as a remote control's
power source? It might be hard to rectify and filter
those 10kV+ spikes but it's a renewable power source
you can buy for a couple of dollars and puts out some
decent energy... ;o)
-Roman

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