@[email protected] to [email protected]English • 6 months agoResearchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered deviceswww.tomshardware.commessage-square65fedilinkarrow-up1242file-textcross-posted to: [email protected]
arrow-up1242external-linkResearchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered deviceswww.tomshardware.com@[email protected] to [email protected]English • 6 months agomessage-square65fedilinkfile-textcross-posted to: [email protected]
minus-square@johntwinkletitslinkEnglish59•6 months agoDefinitely not new. This is how RFID tags work. They harvest energy from the transmitter to power the circuitry in the tag to send back a response.
minus-square@[email protected]linkfedilinkEnglish9•6 months agoNot new indeed. Kinda reminds me of old Nextel phones that you would put a little LED on the antenna and it would blink from the EMI when sending and receiving data.
Definitely not new. This is how RFID tags work. They harvest energy from the transmitter to power the circuitry in the tag to send back a response.
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Not new indeed. Kinda reminds me of old Nextel phones that you would put a little LED on the antenna and it would blink from the EMI when sending and receiving data.
Those were cool!
Tap-to-pay on credit card chips, too.