[Tinyos Core WG] non-TEP code

[Philip Levis]

Rather than going down a rathole, let's take a step back.

Basically a button is a digital IO line with debouncing. Are there  
other inputs where you want to

1) Know when it goes high
2) Know when it goes low
3) Provide debouncing

which are not buttons? I'd imagine touch sensors, rain gauges, or  
other sensor which depends on a physical contact. Not all care about  
both 1+2. This seems like a more general library component that can  
sit on top of a GpioInterrupt component.  The fact that you care  
about both directions makes this distinct from the SID Notify  
interface, unless you had two Notify interfaces, with the value being  
a timestamp.

Gil, what are your thoughts?

Phil