Timeline for DIY passive RFID?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 15, 2014 at 17:02 | vote | accept | HeineyBehinds | ||
| Jul 14, 2014 at 19:00 | history | edited | Funkyguy | CC BY-SA 3.0 |
added 81 characters in body
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| Jul 14, 2014 at 18:59 | comment | added | Funkyguy | I believe it is the same antenna, although the chip inside modulates the reflected waves in a different pattern. | |
| Jul 14, 2014 at 18:54 | comment | added | HeineyBehinds | Thanks again @Shannon Strutz (+1) - and is my assumption about backscatter above correct? Is there essentially different antennae for each tag? (By "different" I mean, has different physical properties, thus producing different strength "return" signals?) | |
| Jul 14, 2014 at 18:52 | comment | added | Funkyguy | Since the power that gets harvested is so little, there is not much room to power sensors and such off of just the harvesting so generally tags that can report other information are at least semi-passive. That is they have their own power source, but until they receive a signal, they are entirely idle. Once a signal is received, they will take readings and send them on over and then idle again. I have yet to see a fully passive rfid tag that can do more than report its ID. | |
| Jul 14, 2014 at 18:47 | comment | added | HeineyBehinds | Thanks @Shannon Strutz (+1) - please see my comment under Majenko's answer - I have the same question for you! | |
| Jul 14, 2014 at 18:33 | history | answered | Funkyguy | CC BY-SA 3.0 |