Hacker News new | past | comments | ask | show | jobs | submit login

I've seen energy-harvesting remote light switches for sale — they supposedly get enough energy from the physical act of flipping the toggle to send a few radio packets. I haven't used one in the real world though.



Some of the ones at my company require you to stab them with your fingers for 15 seconds like a maniac before they turn the light on.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: