4 ms·
I really like the idea of these. Particularly the idea of getting energy from radio waves or Wifi. Sadly it's really had to find much about how to make such des
by Ellipsis753 13y ago
I really like the idea of these. Particularly the idea of getting energy from radio waves or Wifi. Sadly it's really had to find much about how to make such designs and the power that can be generated is really low (and hard to store). There are some nice items for generating from heat and other small sources (such as radio waves) but they're generally far too expensive for any practical projects.
- Retric 13y agoThere is a lot of info out there on this stuff. I would suggest talking to an EE as a friend of mine was all over this 10 years ago and I suspect the field has only gotten more refined with time. From what I recall, storage is often the key to making these things really useful. Take say a temperature reading every minute store 60 of them and burst that data once an hour and you need a lot less power than you might think. Granted, that kind of lag is not so useful for critical operations, but for say monitoring a bridge it's a good fit.