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How I made my own RFID tag [video]

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Re: How I made my own RFID tag [video]

#11

Post by tzs »

Speaking of homemade RFID tags, a couple impressive hacks.

1. Micah Elizabeth Scott built a working RFID tag using just two parts: an ATTiny85 micro controller and a small inductor. The two leads of the inductor are soldered directly to two I/O pins of the processor.

That is the only connection to the processor. The power and ground pins are not connected. The processor gets power via leakage current from the I/O pins. It gets clocked from one of those I/O pins, too.

https://scanlime.org/2008/09/using-an-avr-as-an-rfid-tag/

2. Here's another one of hers, this time with a coil made from magnet wire, and with fancier mounting. The coil, processor, and this time a couple of tuning capacitors, is squished onto duct tape and sealed with clear packing tape.

https://scanlime.org/2011/05/duct-tape-rfid-tag-1/

3. Trammell Hudson made use of her antenna and processor only design for a project of his, which has a pretty good write up.

https://trmm.net/AVR_RFID

Re: How I made my own RFID tag [video]

#12

Post by alangibson »

Bishonen88 wrote: post #6
WestCoastJustin wrote: post #3

Earlier quoted context omitted.

Sounds like he's connected with youtube now. I'm sure the team is checking out that feedback. So, hopefully it'll get fixed as it's bad for both content creators and viewers. The video was pretty cool. Really liked the all access "how it's made" type content. Pretty cool.

It won't revert the damage it's done already, though. Youtube, being the main source of income for so many creators, plays a dangerous game with those 'beta-tests', offering apparently not-well-tested features to the creators, playing with their revenue as a result.

It seem inevitable that YouTube will always drive creators revenue down to 'subsistence' level, where 'subsistence' is just enough to keep them making videos. From a shareholder's point of view, anything more is giving away money.

Re: How I made my own RFID tag [video]

#15

Post by dawnerd »

kkarakk wrote: post #8
Bishonen88 wrote: post #6

Earlier quoted context omitted.

It won't revert the damage it's done already, though. Youtube, being the main source of income for so many creators, plays a dangerous game with those 'beta-tests', offering apparently not-well-tested features to the creators, playing with their revenue as a result.

no one apart from "game the system" type channels like those kid toy unboxing channels are using youtube as a primary source of revenue anymore. merchandise,patreon and ad sponsorships are the only way to make an actual living with youtube

Literally couldn’t be further from the truth.

Re: How I made my own RFID tag [video]

#17

Post by jkestner »

alangibson wrote: post #12
Bishonen88 wrote: post #6

Earlier quoted context omitted.

It won't revert the damage it's done already, though. Youtube, being the main source of income for so many creators, plays a dangerous game with those 'beta-tests', offering apparently not-well-tested features to the creators, playing with their revenue as a result.

It seem inevitable that YouTube will always drive creators revenue down to 'subsistence' level, where 'subsistence' is just enough to keep them making videos. From a shareholder's point of view, anything more is giving away money.

Upvoted because this sums up Silicon Valley, or capitalism.

Re: How I made my own RFID tag [video]

#18

Post by RandomOpinion »

tzs wrote: post #11

Speaking of homemade RFID tags, a couple impressive hacks. 1. Micah Elizabeth Scott built a working RFID tag using just two parts: an ATTiny85 micro controller and a small inductor. The two leads of the inductor are soldered directly to two I/O pins of the processor. That is the only connection to the processor. The power and ground pins are not connected. The processor gets power via leakage current from the I/O pin…

The homebrew RFID tags in the articles you link to are LF (125-134 kHz) RFID tags.

The ones described in the video are UHF (860-960 MHz) RFID tags, which differ considerably in design and protocol.

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