Hi All,
I just came across this tiny GPS sensor, for tracking pets, children, or whatever else. http://retrievor.com/small-and-lightweight-gps-tracking
I find it very interesting because it's the size of 4 US quarters stacked. That's about the size and thickness of the tip of my thumb (ok, I might have big fingers, but that's still small).
Within that space they fit the GPS tracker, a Cellular module, some kind of power supply (battery? or super capacitor maybe?) and a kinetic (motion) charger.
Maybe the most interesting bit is that it includes a kinetic charger so it never needs to be plugged in or placed on a wireless charging mat or such.
That reminds me of those watches in the 80s that wound themselves by simply wearing them.
I can see this being very useful in many types of applications.
Has anyone come across such a charger that would fit into such a small space? Or even anything remotely close to that size? The only things I've seen are much bigger (for charging cell phones and such).
Thanks,
-Nico
