▲ 78 ▼ Researchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered devices (www.tomshardware.com) submitted 2 years ago by schizoidman@lemmy.ml to c/technology@lemmy.ml 15 comments fedilink hide all child comments
[–] nondescripthandle@lemmy.dbzer0.com 8 points 2 years ago (1 child) Isn't this similar to principle behind The Great Seal Bug? I thought we knew blasting RF at a specific receiver can create energy. permalink fedilink source hideshow 2 child comments replies: [–] qjkxbmwvz@startrek.website 7 points 2 years ago (2 children) Yeah, you can also find "crystal radio" kits radio receivers that use only the received RF to produce sound (no external power source). permalink fedilink source parent hideshow 4 child comments replies: [–] nondescripthandle@lemmy.dbzer0.com 4 points 2 years ago The article talks a lot about their rectifier and im guessing that's where the 'breakthrough' is, but still I feel this is like too many of these articles where its a lot of hype for a little progress. permalink fedilink source parent [–] sonori@beehaw.org 3 points 2 years ago This is also how passive RFID tags work, the tag harvests just enough energy from the scanning frequency to boot up a microchip and respond with its ID number. permalink fedilink source parent
[–] qjkxbmwvz@startrek.website 7 points 2 years ago (2 children) Yeah, you can also find "crystal radio" kits radio receivers that use only the received RF to produce sound (no external power source). permalink fedilink source parent hideshow 4 child comments replies: [–] nondescripthandle@lemmy.dbzer0.com 4 points 2 years ago The article talks a lot about their rectifier and im guessing that's where the 'breakthrough' is, but still I feel this is like too many of these articles where its a lot of hype for a little progress. permalink fedilink source parent [–] sonori@beehaw.org 3 points 2 years ago This is also how passive RFID tags work, the tag harvests just enough energy from the scanning frequency to boot up a microchip and respond with its ID number. permalink fedilink source parent
[–] nondescripthandle@lemmy.dbzer0.com 4 points 2 years ago The article talks a lot about their rectifier and im guessing that's where the 'breakthrough' is, but still I feel this is like too many of these articles where its a lot of hype for a little progress. permalink fedilink source parent
[–] sonori@beehaw.org 3 points 2 years ago This is also how passive RFID tags work, the tag harvests just enough energy from the scanning frequency to boot up a microchip and respond with its ID number. permalink fedilink source parent