I've needed something exactly like this in the past, when using someone elses computer for a presentation (so I didn't want it to sleep and turn off the projector screen while I spoke, and I didn't want to go messing around in their control panel).
I took off my wristwatch, put it on the table, and set the optical mouse on top of its face... the second hand sweeps by every minute and nudged the pointer just a bit. Worked like a charm.
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I've needed something exactly like this in the past, when using someone elses computer for a presentation (so I didn't want it to sleep and turn off the projector screen while I spoke, and I didn't want to go messing around in their control panel).
I took off my wristwatch, put it on the table, and set the optical mouse on top of its face... the second hand sweeps by every minute and nudged the pointer just a bit. Worked like a charm.