New wildlife GPS tracker uses kinetic energy for power

Paper with diagrams:

https://journals.plos.org/plosone/article?id=10.1371/journal...

PDF https://journals.plos.org/plosone/article/file?id=10.1371/jo...

If prototype can do one ping per day, imagine 2nd or 3rd generation doing once per hour.

The "Kinefox" Kinetron MSG.32 looks absolutely fascinating.

https://journals.plos.org/plosone/article/figure?id=10.1371/...

Sounds similar to a Seiko Kinetic watch (uses the rotor to charge a battery)

https://en.wikipedia.org/wiki/Automatic_quartz#Seiko

Repository with Hardware/Firmware/Backend: https://github.com/TroelsG/Kinefox