I just turned my mouse off and on again, and immediately moved it. I
could not notice any turn-on delay.

I think that a good design could be using an N-Channel MOSFET on the
negative battery wire (or a P-Channel on the positive wire) and a piezo
transducer to its gate, with a very large resistor from gate to source.
The resistor and the gate capacitance would create an R/C timer that
keeps the mouse on for a while and then turn it off automatically. A
movement would make the piezo transducer to produce a voltage spike that
charges the gate capacitance again.

This circuit would "harvest" energy from users movement to keep the
mouse on and would not use any quiescent energy from the battery.

Perhaps an external capacitor and a Zener diode may be necessary.


Cheers,

Isaac


Em 01/10/2015 17:39, James Cameron escreveu:
> On Thu, Oct 01, 2015 at 08:02:45AM -0400, Art wrote:
>> So, my question is WHAT METHOD DO I USE TO STOP THE MOUSE FROM DRAWING=20
>> CURRENT FROM THE BATTERY WHEN THE WAKE UP SENSOR TIMES OUT??
> No idea, it would depend on the design of the existing circuit, and
> the microcontroller code already in place.
>
> You might also consider replacing the battery with something of
> greater energy density.
>



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