this post was submitted on 26 Jul 2024
219 points (90.1% liked)

Technology

59602 readers
4497 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
L3s@lemmy.world
L3s@fry.gs
L4s@fry.gs
L4s@lemmy.world
enu@lemmy.world
219
Researchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered devices (www.tomshardware.com)
submitted 4 months ago by schizoidman@lemmy.ml to c/technology@lemmy.world
68 comments fedilink hide all child comments
 

cross-posted from: https://lemmy.ml/post/18426215

you are viewing a single comment's thread
view the rest of the comments
[–] astrsk@kbin.run 7 points 4 months ago (3 children)

This would be neat for a bunch of passive IoT buttons. No need for a piezo to generate power, good for a couple presses at a time, just simple stuff like that.

[–] billwashere@lemmy.world 8 points 4 months ago

Charge up a capacitor and allow a single button press to send a radio signal. Or maybe have enough power to send a WiFi signal.

[–] Varyk@sh.itjust.works 3 points 4 months ago

You're right, that would be the preferred application atm.

[–] sugar_in_your_tea@sh.itjust.works 2 points 3 months ago

I wonder if it could power a sensor. Something like a soil dampness or thermometer, where you only need a few updates per day. Could be pretty cool for passive monitoring applications.