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- เผยแพร่เมื่อ 2 พ.ค. 2024
- Today we will start to understand how RFID cards work and how they can be used with your Arduino. You will see, which cards and readers are available and how they compare, we read RFID cards from a hotel and a trade show, and we will do some experiments to protect your cards against attacks. And maybe we even clone cards? All legal, or at least, sort of.
Links:
RDM6300 Sketch: www.mschoeffler.de/2018/01/05/...
MFRC-522 Library: github.com/miguelbalboa/rfid
Wiegand Library: github.com/monkeyboard/Wiegan...
Good RFID reader: s.click.aliexpress.com/e/cHytxWOc
Bad RFID reader: s.click.aliexpress.com/e/bX5rbSpw
RDM6300 reader: s.click.aliexpress.com/e/bg65Xi8o
MFRC-522 reader: s.click.aliexpress.com/e/bgciwGFm
Proxmark3: www.aliexpress.com/item/New-p...
Supporting Material and Blog Page: www.sensorsiot.org
Github: www.github.com/sensorsiot
My Patreon Page: / andreasspiess
My Bitcoin address: 19FSmqbBzb5zsYB1d8Bq4KbxVmezToDNTV
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
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Equipment in my lab: www.sensorsiot.org/my-lab/ - วิทยาศาสตร์และเทคโนโลยี
12:14 The S in "RFID" stands for security :D
I also liked the joke!
i love the jokes in every episode , its like searching for easter-eggs ...
Went right over my head... I heard him say it, but never twigged to it being a joke. I was thinking there is no S there.
I bet the S-RFID cards have either DES or AES cryptosystem on board possibly even both.
@@DAVIDGREGORYKERR DES??? lol. Not much better than double ROT13
Thank you! This is one of those things I've been curious about, but not curious enough to spend money experimenting. You just saved me money and time.
You are welcome. This is one intention of this channel.
Very informative and well presented as usual!
Thank you!
I am always learning something when i watch your videos 😊 !
Thank you Andreas !
You are welcome!
Excellent video! You are a great maker and without a doubt the best maker educator of them all!
The part about the German IFF (Identify Friend or Foe) system reminded me of the quote from one of Churchill's closest aides, Sir Ian Jacob. His view was that the allies won because “our German scientists were better than their German scientists”. :-D
The Americans could probably say the same thing if you look at Los Alamos or Saturn V. Some leading names there also sounded quite German ;-)
We need more videos about RFID.
As a good citizen we need to learn. Thanks
You will get most probably two of them: One about cloning and one for UHF tags.
Great video! Thanks for covering the details of the different types of RFID. Perhaps in a future video you could test the effectiveness of those special wallets that claim to protect user's cards from bad guys with scanners.
I think the wallets have a similar foil built in as I showed. So I would assume the effect is the same.
Very nice, always been curious about RFID stuff since it's widely used here for access to apartment buildings. I use one every day.
So the next part could be interesting for you ;-)
awesome video !! thank you so much for the summed information I don't know how you collected them thanks a lot
You are welcome. It is easy to get the information on the internet if you ask the right questions ;-)
Great series on the RFID goods. Thanks
You are welcome!
Great and interesting video ! Time for some experiments with my existing cards and see if I can use them for my shed.
So I have to assume your shed is finished by now?
Let's say it's the never ending story. Well, it's almost ready. I'm now looking into finishing the floor. I haven't made a final decision, but I would like to pour an epoxy floor. After that is finished, I'll bring in the furniture. Smaller details are to be carried out in the next month, but at the same time I'll start using the shed.
Here's a picture of the work in progress.... photos.app.goo.gl/udfSVFbrR6uUyUr39
Looks nice!
Subscribed! And looking forward for the next video about RFID, mifare etc.
Welcome aboard the channel!
Andreas Spiess is the best, awesome to all his work he does, fantastic and a big thanks.
Thank you!
My use case is an Electronic lock at the front door and small kids. Small kids tend to lose keys. Replacing regular keys is expensive as you need to replace the cylinder locks, so for 1/2 the money of replacing my locks i installed an electronic lock and RFID reader. When an RFID key gets lost, i just remove the number. As for lack of security, regular keys are not much more secure. The added detection and notification of known and unknown RFID keys (with a snapshot of the person in front of the door) makes it practical and secure.
As a bonus, i got an electronic lock that detects whether the ‘night lock’ is on. In the Netherlands most homes have such a lock which has two types of locks which activate the ‘day lock’ (dagschoot in Dutch) and ‘night lock’ (nachtschoot). When only the ‘day lock’ is active, the electronic lock works. When the ‘night lock’ is on (same cylinder, just turned further), the electronic lock won’t unlock the door. Also, i can use this detection to ‘arm’ my alarm.
Sounds like a useful application. And when your kids grow up, you can log, when they came home ;-)
Looking forward to see episode 2.
It will take a while :-(
Andreas Spiess no problem. I am sure it is worth waiting for:-)
Thank you very much! A video about single wire connection, like the iButtons would be also very interesting :)
Never heard of them. But I will order a few to check them out... Thanks for the tip.
Great video on the basics. I bought a MFRC-522 about a year ago but only got to trying it in the last 2 weeks. Unfortunately it seems to be dead. I was unable to establish communication using several free libraries. Really cheap off ebay but I guess thats the risk.
I need to get another so I can do some experiments. In the mean tie I look forward to you second video on the topic.
Fortunately these modules do not cost an arm and a leg ;-)
I built a 125kHz/LF RFID card spoofer using an STM32 microcontroller and some other basic components. It works on all devices I have tried it on thus far.
Hopefully. The protocol is standardized on 125kHz. On 13 MHz it is a little trickier...
I love your videos, very well explained !
Thank you!
Love it. Can't wait for the UHF videos
It should already be there
Yikes. I did not realize it was a year old video. If it was the attempt with the yaggi antenna then I have seen it. A newbie here and really enjoy your content. Great production
I really like your videos, so informative! Many thanks!
You are welcome!
Very nicely done Andreas, very interesting.
The research was also interesting for me. Especially the history...
Funny how we hated history in school, but now its very good! :D
I use HF tags embedded in wristbands for agile payment purposes. There are ways of securing your tags by password protecting them, only for writing tho; for reading is recommended to use some kind of encryption that uses the uid as a part of the decoding parameter, so that the payload is unique per uid, there are ways to fake this as well, but users interact with the scanners via a person, they don't use any scanners directly, except for balance checking, which is a small ESP32 that queries the server for it using the uid and the payload.
Thank you for your feedback. So you found a good way to live with this insecure technology.
As long as you are using the tags in a predictable environment we can say it's fairly secure. Anything other than that, you need to use your phone's NFC capabilities. We also collect the wristbands for reuse when the customer is leaving. Trying to be a little greener here and there :)
Alfredo Rivera As I said in my comment above...when it comes to payments, I have the user enter a 4 digit (or more) pin and then scan their tag. This makes it something they know and something they have. That increases the security in the right environments.
Dan Hoover We have made runs of this mode, but given that we are focused in festivals and concerts is a little troublesome. We are now trying scanning and then presenting two colors in the screen of the terminal and having the customer choose their color to confirm the transaction.
Hi Andreas,
My job card some years ago has become RFid.
As a back up of functionality it maintains the pre-existing magnetic strip (in some locations they still have old skimmers!)
With that I can open the entrance door of my workplace, unlock the anti-theft of my service cars (confirming that I am driving, for any legal liability with respect to traffic laws) enable the use of photocopiers / printers and confirm my beginning and end of work.
I noticed that those little metal and plastic boxes of the cost of a few euros in the Chinese shops (at 9:00 am of your video, in the middle of the screen is shown a pink model and the previous items, shown opened is bronze) work well as shielding.
From the tests I have done, the badge is not read inside the box or even if it is placed on the outside of the box.
I can not tell you if it's an LF or an HF, because I did not have a chance to see the reader's antenna.
All your videos are interesting and they always teach something!
Bye
Thank you for your feedback. Maybe you check now once if you can read it. But pay attention with the magnetic strip and 125 kHz. Maybe it is erased afterward...
Andreas Spiess
thanks for your warning, but fortunately the magnetic strip works correctly: the entrance to the building is rfid but the entry and exit stamping is magnetic stripe. the anti-theft-car reader is very small 2-3 cm in height by 8-10 in width ... I do not know if there is an RFid HF coil.
bye
Good video, I'm on it. thanks
Have fun!
Thanks for sharing your knowledge, skill & passion with us in such an understandable way. Subb'd on Patreon
Thank you for your support! Much appreciated.
Excellent presentation. As a RFID Engineer and Architect, you have discussed all important elements.
There are of course some gaps, but nothing critical. It should be noted, the majority of High performance and secured RFID platforms have excellent security built into design and format. They are not readable by any generic hardware or software interface and require standalone encoder equipment.
This doesn't mean that low cost systems are not in use, they are. It is also true, these systems should have better security and protocols. Cost is of course, is the major reason.
The next generation of RFID that includes master / slave authentication interrogation is now hitting the market.
For example, a biometric algorithm will be available to upload a security scan of the user's fingerprint into a guest RFID card. This becomes the temporary passcode installed into the card and card reader database server.
If the card reader detects a different fingerprint (algorithm) other than what was used to configure the card, it will not work. Up to 3,000,000 coordinates can be input and scrambled into a input sequence, which is impossible to decrypt / decode without a supercomputer in less than year.
I assume you are the expert (not clear in your post). I am certainly not an expert as I did not know anything about RFID one week ago ;-)
From what I read, for a long time, you get much better cards. But the old ones are still used, especially by Makers. Maybe also because they are easy to understand and use.
The next generations will no more be very interesting for a video. No hacking possible :-(
@@AndreasSpiess I have some experience with this technology. :-)
My point is that you have done VERY well understanding how the technology works and its use today.
Your ATC analogy is a good one. A modern super fast equivalent is smartphones with NFC that combines connectivity, identification, authentication and payload.
We may see RFID card / fob readers adapted to interface to NFC devices using a hybrid Secured Element Identifier (SEID) Chipset. However, it currently uses only the lower frequency band in the ISM space.
Years ago, I developed a early Android App using NFC that added an additional security layer, by including biometric scan as part of a two step authorization process on the smartphone device, which, once authenticated, allows the NFC Chipset to send an authentication code to an RFID reader.
If the phone was lost or stolen, it would not work unless the finger was...
The goal was to reduce the number of pass cards a user might be required to have access multiple platforms and systems while maintaining two step security protocol.
This is particularly true of loyalty rewards cards when they were first introduced. Now barcodes are used to easily display on any smartphone screen eliminating any demand.
We will probably see in most markets, a continuous decline of legacy RFID card readers with updated scanners taking their place except where extreme environmental conditions and long connectivity distances exist.
Real-time Encryption using one time transaction codes are becoming highly desirable.
Blockchain has been touted as one approach which has significant issues including payload size along with latency issues.
RFID still has life and is accepted in low security environments and has potential to be significantly upgraded.
For tracking and monitoring applications, it remains an excellent low cost solution.
As I have mentioned before, the potential in the agricultural and forestry sector is an interesting opportunity. I know you have asked for some additional information, which I will get you later this week. The problem is that some of the documents are in PDF files only and links are not easily posted.
Legendary sir. Thank you!
You're welcome!
This video is informative, thank you.
You are welcome!
Excellent, we are looking to use this to control cows/goats inventory in open land tky
In open land, LoRa might be another possibility. I know of a guy who can predict when cows can become pregnant by checking their movement and send it via LoRa. I do not know if it is directly sent to the bull ;-)
One of the oldest prox card system I've worked on, used frequency turned antennas on a PCB board the size of a credit card, based solely on frequency. To have a different access group you needed to add a different crystal. High tech almost all way becomes low tech, it's just a matter of time.
So you probably also have a few grey hairs ;-) It is sometimes astonishing what was achieved in the old days with only a few technical possibilities. E.g. the flight to the moon and back...
Andreas Spiess: fizeau-foucault apparatus is a prime example of that, with just clockwork and mirrors, measure the speed of light! In 1845 with in 5%. Videos like yours and other are showing off the "clockwork an mirrors" of the future. Thank you.
Thanks for sharing
Interesting project :-)
You are welcome!
I do like the extra pilot and plane stuff, i am a hobbesy aircraft lover too
And I learned to fly in Florida. And we discovered that my transponder did not work when I wanted to land in Palm Springs with a nearly empty tank. I never forget that.
love you andreas, ur the best my man
:-)
09:23 I wouldn't rely on multiple cards as protection against malicious reading - the ICs usually support collision avoidance, if multiple cards are present the reader can choose which one to address. This is for example used in logistics where a packet can have multiple contents with separate tags - passing through the reader will sequentially read all of them. I guess the reader you tried is specifically designed for access control - since in this case multiple tags is a sign for unwanted scans they abort the reading, but thats just a design decision and not a technical limitation.
You are right. Some of the modern chips support anti-collision. But the one I used not. If you combine only one which does not support it, your spectrum is "closed" as it always transmits.
great video and just in time a new project I am going to do next is a rfid reader on the back garden gate. I never have my keys with me when I need them and usually have my hands full. would be nice to just have a card hidden on the inside of the fence I could use to open the lock I was looking in to using magnetic locks with a 600Lbs capacity. I have never used some thing like this for external use but I believe it will work and it is a 12v DC system. If any one has used some thing like this and it is a bad Idea please explain why
And you even could implant an RFID chip in your hand. Then you for sure would never forget it ;-)
522 is legacy, it only supports iso 14443. You should try 633 or even PN series. They support much nicer tags like iCode and other iso 15693. We are getting as much as 90cm range on 13.56 :)
Thanks for the info. Do you have links to such readers?
Hmm, actually we build our own readers. Looks like they are not so popular so Chinese folks didn't really built any. I'll try to look something u for you. There are definitely some evaluation boards on farnell, etc.
What?! 90 cm?! I'll have to check it out if it isn't too expensive! Even the PN532 has a range of maximum 10 cm. Also, 633 what? I've tried RC633 and MFRC633, but neither give relevant results on Google.
The aircraft transponder codes at the start...
The bottom one, 7500, if you ever put that in on an aircraft, you will be met at your landing by law enforcement. It is one of 3 “special” transponder codes:
7700 - Emergency
7600 - Radio Failure
And the one displayed, 7500 - Hijacking in progress
So I have some real pilots amongst my viewers ;-) Unfortunately I learned to fly in a hijacker‘s flight school in Venice, Florida:-(
What's the black-out from 10:55 to 11:00 in the video? Did you originally film something that you decided you didn't want us to see? If you did it just to see if we are awake or would ask questions (than it worked).
The sleeve part was too sexy for TH-cam without being age-restricted.
Obviously a production error. Sorry for that!
Vonries:
Andreas realized that he had showed us his bank account number :-)))
Nice work Andreas. The IFF code at the start took me back. The frequency looked like FSK of the cro was it?
I did not check the modulation. They also use PSK.
@@AndreasSpiess Pulse shift key very cool indeed.
I had a use case to scan cards passing the reader at speed. I tried to find information about which frequency (LF or HF or even UHF) that’s best for reading speed. I also wonder if different readers can read tags faster or slower? Could you help out in this? Maybe you can compare readers on read speed as well as range? Love you channel!
I will try. But I think UHF will win.
Andreas, I like your style!
Thank you!
6:00 lel already subscribed after the first video, im bingewatching rn
Welcome aboard the channel!
Dear Andreas, thanks for the nice channel.
How did you connect the 7304D2 reader? Also interested to learn how to connect the Buzzer en Led control.
Can you also write on a Mifare card with this Wiegand (7304D2) Reader?
I'm now using the MFRC-522 reader/writer and looking at your channel I would like to change to the more professional reader.
Thanks.
1. Wiegand readers have two data lines (D0 and D1)
2. The buzzer and the LED was controlled by the reader itself
3. You cannot write cards with this device (at least I do not know how)
It would be good to do more tests to see what protects cards, like aluminium foil maybe.
At 10:55 the screen goes black.
10:55: A production error. Sorry for that!
its a deleted scene , we got for free
That is a good idea. Also I’d be interested in trying to make an alarm card for my wallet which would be triggered by someone attempting a scam scan.
@@CTCTraining1 i think it would be a device rather than a card but good idea
Hey, nice video :)
You mentioned that the EM4100 or "good reader" works on 5V. But on its back panel it says 12V?
I do no more remember. Maybe it has a built-in voltage regulator
AFAIR there are Android apps for NFC phones which read everything and can also emulate RFID cards too. For example from most Visa/MC cards you can read data which are not coded like last transaction value and date :) I will buy such RFID kit for MCUs because now they are in more reasonable price than a few years ago.
Unfortunately, I only have an old Android phone without NFC chip. So somebody else has to do that video :-(
My use case is 5 mfrc522 readers connected to a wemos to identify 5 little ships and detect when they are placed in their respective harbours on a map in an escape room.
I have a colleague which has an escape room and he also uses a few of them. Interesting! I only recently heard of these escape rooms.
First time I was in one, I recognized all the parts from maker sites/videos and my own collection and tried to figure out how everything works. Must be a nice project if you have the space.
Justin Richards scape rooms? Like a mans cave?
Andreas Spiess
escape rooms, like the panic rooms you see in the movies?
Like this one: www.roomescape.ch/?lang=en (built by my friend)
-1- What about shops who protect there merchandise with RFID. In some shops the alarm seems more sensible than in others and sometimes reacts to library books.
- 2-The public transport in The Neterlands use HF RFID cards. They store data on the card but also in there own system to prevent using cloned cards.
-3- The alarm in a shop sounded once due to a (big) bundle of RFID card in my wallet. When i splitted up the cards there was no problem...
-4- An idea to add a cheap RC5222 reader in the bottom of the Tank to detect the (exact) location of spots where a Tag in placed in the floor? (Perhaps some nail tags can placed in the garden ground for that?)
I do not know how the cards in shops work. I only read that they have one bit which is flipped when you pay. Maybe the scanners are very primitive?
Concerning Robo Tank. Good idea!
Hi Andreas, Interestig story about RFID's. Did you ever tested the long range RFID's used in sport timing systems? |They have a reach upon to 8m. These systems are quite expensive. Would you think it is possible to build such a system with budged equipment. Would it be able to just ad a strong antenna to a basic system for a better reach?
I need to determin/recogise persons on 8 meters distance.
Do you have any experiance about this subject? Innod is a long range RFID tag.
Regards.
Johan van D.
They use UHF tags and quite strong transmitters. I have UHF tags and a reader here to experiment and will cover it in a video. But I do not have an (expensive) high power device.
great video!
Glad you enjoyed it!
Hello, Thank you for your video. Great information. Do you teach also courses for beginners?
You are welcome! This channel is not intended for beginners, or only for ambitious beginners.
Great Video, again. But One Question: How long does it take you to produce this video?!
Too long. Because I had to learn everything about RFID and also a little about the Proxmark3. The production itself takes about 10 hours for a 15 minutes video
Love the video. Very professional presentation. What about RFID in smartphones ?
So far I have no Smartphone with NFC, so I cannot check. But they seem to be on 13 MHz, like the other Tags. But they are more secure.
Many of the USB RFID readers hit "enter" automatically when connected to a web form/pc. When I want to add a second factor of security to rfid on a web application like a login or a gift card, I have the user enter a pin followed directly by scanning their rfid card. So the 4 digit pin plus the 10 digit rfid uid concatenate together into a 2 factor authentication on one form input.
That is for sure a much better security than the card alone!
Both standards - 125/13.56 offer cards with programowanie CSN. On MF we can change sector code to protect our code.
Mifare have also 7byte CSN length (MF od a part of ISO 13.56 standard)
I saw that the Mifare can have 7 byte UID. But all the cards I purchased were only 4 bytes. Where did you get the 7 byte ones?
In the next video I will clone both types of cards.
@@AndreasSpiess eg UL, DesFire or Plus. Some new classic have 7 bytes too. Probably hour UL card have 7bytes, but configuration od reader returns only 4?
Another question - MF have strong coding of transmision.
I You like, we can talk more about RFID - please priv message or email
I did not want to go more in the details of RFID since these cards are not commonly used by Makers and I do not want to become a specialist. I wanted to concentrate on the ones still widely used and the basic understanding.
Very good 😀🏴👍
Thank you!
Andreas Spiess I’m so tempted to buy the Proxmark3 module🤔 it looks a lovely piece of kit. What do I do? Oh these conundrums confuse me 😀🏴
Unfortunately, it is also made for the "not so lovely" people ;-)
Useful video
Thank you!
Great Video, how can we contact you? Does the cars rfid chips works in the same way?
Car RFIDs work differently and I do not know how.
Fantastic !! Do you think is possible handle a UHF Rfid Module by UART with a ESP32?
I think so, if the module offers RS232.
U are really grate. U are awesome
Thank you!
LF Hitag 1 ans S tags support Anti collision so using two of them will not block the access.
And what about you combine a Hitag and a normal one? It seems both have to support anti collision to work?
www.nxp.com/products/identification-and-security/smart-label-and-tag-ics/hitag:MC_42027
Generaly EM4xxx does not support anti collision but Hitag 1 and S yes. Anyway they should not work sticked together (EM + Hitag)
For security in Mifare I suggest to use Desfire. Also Plus are quite safe - Debit card are Mifare Plus. Cheapest way is to take Mifare classic, use own authentication keys combined with data ciphering (f.e. AES).
US passports issued since 2007 all have an RFID chip in the front cover. I purchased sleeves for our passports- but thanks to you I know the sleeve does not work on LF RFID. Do you know what kind of RFID is used in most passports?
NFC: 13.56 Mhz
I hope it is not necessary to protect it as it should be safe.
Mr spiess, i want to ask about secure access module (SAM) card.
Can you explain all process when we're using e-money card to buy something and what the connection between our e-money card and SAM card provide by Bank. Thankyou before 👍
I do not have knowledge about these topics :-(
hi andreas
does the aliexpress proxmark work like the original
Similar. It is only a simple example without some of the original features
Do anyone know Is it possible for nfc tag to cover area of maybe half square meter or so? Maybe emulated card or card with bigger antenna? I don't need distance, I need wide area of reading. Thanks!
Maybe with a special antenna design. And maybe you also have to amplify the signal of the transmitter to provide enough energy to the chip in the card.
You should not rig the pokertable...
hi! Great Vid!
I have a question for you! I have a keytag for my apartment and I want to clone it so i have a spare one. I bought the RC522 module for the arduino. The module works fine and reads lots of different cards and tags, but it does not read the keytag for my apartment. The key tag is a standard blue roundish tag with a 10 digit idnumber written on it (first two 0). Why do you think the RC522 cant read the tag, and what do you recomend i should do? Thanks :)
Thankfully, your key is encrypted. Otherwise, everybody could enter you home ;-)
@@AndreasSpiess haha yes i figured. But I still want to duplicate the key. Do you have any suggestions?
EM RFID chips (I have bought a lot of these from china) have 40 bits UID. However it is very common for reading equipment to "mask out" only the least significant 32 bits. Our Axema access system (a swedish manufacturer) where I live uses all 40 bits!
So, the UID number in the Axema event log is different from the number inscribed on the chinese RFID tag. Very confusing before I understood what was going on!...
Are you sure you do not read the bytes described here: www.priority1design.com.au/em4100_protocol.html ?
I have actually written a little "essay" about my findings...sites.google.com/view/experiences-with-em-rfid-tags/home
7:00 That's odd. When I did it with mine, it still worked correctly (or so I remember).
I did not investigate long and used a coil.
Before I watched your video I had ordered the "Bad" RFID reader from AliExpress. My electronics knowledge is poor and I've struggled to get it working with an Arduino using 13.56MHz. (The buzzer is also continually on, whether it is connected to the Arduino or not).
Do I need to wire any pullup/pulldown resistors to get this working properly? I've tried a number of libraries, but not the one you have referenced above. Any advice, or a wiring diagram would be much appreciated. I will order the "Good" one from above and see if I can get that working.
Thanks for all the great videos.
Unfortunately I cannot do remote debugging :-(
Wasn't so much hoping for debugging advice, but how you wired yours when you were testing. But thank you for replying.
This is longtime ago and I am na old man :-(
Not so old I think :) But I certainly understand and respect your response. I continue to look forward to your informative videos.
I am working now on a project where I will need to write encrypted data on a mifare 1k card. I was thinking about using a reader with wiegand protocol, but since you said that you cannot read anything beside uuid this is a problem. Do you know if this is a hardware or software limitation and if hardware are there accessible readers out there that can read the card content?
The two "professional" readers I have do not provide information about their capabilities. The two boards should be able to write, too. But I did not investigate. I assume you also need software to do it.
Well the software I can write for myself, as long as there is some kind of documentation on how these devices should work.
Question: Can a UHF reader, read a tag inside a metal surface? Porbably not... What about HF?
I would be interested in some comparison between them.
Great video though, thanks !
Radio waves in general do not easily travel through metal.
Is there a reason you didn't talk about the 900mhz RFID? It is by far the best RFID standard expect for the higher price. There are readers on alixepress $85 tho
I talked and said, that it will be covered in a later video.
Another A+ on your presentation Andreas DE: Jack NH7q (WH7AJM)
Thank you!
Hi,
some feedback and a question on my setup.
I purchased a Qwiot(?) 7304D2 dual frequency reader and wired it to an ESP8266/LoLin Dev board
I also received 125khz cards + keyfobs + coin-type chips.
From a previous experiment with an RC522A reader module I also had some 13.56mhz keyfobs and cards. The 13.56mh items scan immediately, it does not matter much where I place the chip on the reader.
The 125khz cards/keyfobs however scan much slower and much more unreliable. I have to place the chip dead center on the reader and there is a ca. half second delay until the card is read.
At a number of occasions the reader even locked up and did not scan any more. The ESP was still looping. Reset and it worked again. I am using the "Yet Another Arduino Wiegand Library" library.
Is this behavior normal/known?
Thanks
I do not see a feedback nor a question
Andreas Spiess well, the feedback is that the reader works crappy for me on one frequency. This might interest people who plan to order this part. Question is whether somebody can confirm such behavior.
Bow I got it. Thanks for the clarification!
Andreas Spiess 👍
Does RDM6300 support 134 kHz band. If not, are you aware of any reader that does? (Would be useful for reading animal microchips (134.2 kHz )) and build the perfect cat door!
I do not think so. I plan to read the Dishka‘s chip, but with the proxmark3
hmm. Ok, I couldn't find a reasonably cheap reader module on AliExpress for 134.2 KHz. To build something like this would be super cool - www.surepetcare.com/en-gb/pet-doors/microchip-cat-flap-connect
As the animal ID system is standarized, check out products for ISO11785 or ISO 14223
Hi! Why the LF Tag EM4100 has a 4 Bytes UID (4:45)? Reviewing the datasheet of the EM4100, I noticed that it has a 64 bits of Read Only, so, it wouldn't be 8 Bytes?
Thanks!
I do not know :-(
Where did you purchase the Proxmark3 v4.0 ??
The link is in the video description. But I do not think it is a 4.0
I would like to build a RFID system in my daily backpack for knowing that I didn't miss anything at home. I would stick one RFID card to every Item I don't want to miss. In the morning holding my backpack against the RFID reader and it should tell me if I missed something. Problem is the needed range of ~ 30cm. Is there a solution for my range problem?
This means that you have to be able to read over distance and the tags need to have a "collision detection" mechanism. AFAIK this is only possible with UHF tags.
Which system would best serve to track participants in a marathon setting? To register runners as they cross check points.
Runners are usually tracked with UHF RFIDs. There is also a video about that on this channel.
Andreas Spiess Thank you. I have a Concept for a Next level Event, that will benifit from various RDIF systems. #FLUXXIX #2020Vision
Hi Andreas. Could you maybe provide wiring to ESP8266 and maybe a sample sketch for the dual frequency module you recommend here? That would be awesome! 🤓
If I remember right it just outputs the number on Serial. There you can read it. No big deal.
Andreas Spiess Yes, thanks. I was a bit confused with the LED and buzzer pins. The device is not widely used nor documented but I found this info which looks helpful at smartpoker dot jimdo.
How much energy do you need to destroy the tag / card, like using a induction heater at the right frequency. ?
I do not know as I have no transmitter for this frequency, and if I had one, it would probably not appear on TH-cam as it would be highly illegal ;-)
You say transmitter (sounds like HV) and I meant an industrial induction heater (more current) for metal parts/heat treatment.
Would you say, it only works ("kill") with higher voltages, and not with big current?
Would (theoretically) a induction charger (5W) be able to kill, the card, or are the frequencies legally attributed for these chargers.
You mentioned "the right frequency" in your post. This triggered my response.
A few seconds in a microwave would probably do the trick... ;o)
I don’t know if you’ll reply but I’m looking to copy a Dormakaba rfid key. This particular key has to insert into the lock and turn to unlock the bolt. Let me know if you have any advice
I answer all comments. But I have no advice here
I bought mfrc522 and it work will but sudenly it stop and i change it the new one work well after 1 day it the new one stopped and some time read tags and some time stop
my conection is very good and i make sure of them i mesure frequincy of the medule it is 13.65 mhz
When it stop give me 50hz or low freq
Can you help me with that please
Unfortunately, I cannot do remote debugging.
@@AndreasSpiess
If i power chinees arduino with usb can it give me 200 milliamper from5 volt pin or less
i make a my card security signal shield with a piece used aluminium foil + tape to strengthen the foil.
I will try that in the next video.
Would it be possible for a coil around a doorframe to read the RFID chips?
I am not sure what driver you need for that. The „coil“ is quite large and the distances, too.
i once mounted a large antenna behind the door, it was only powerfull an read only in the corner of the antenna. maybe something for a next video? -- see here, to see more antennas and the large one. interesstingly they build it with ribbon cable for hardisks... www.rss-systems.de/shop/rfid-systeme/rfid-systeme-125khz/antennen-lf/ulr190-u-long-range-190x85cm.php
👍👏
is that possible to read the hotel cad using this ?
Usually not because they are encrypted.
Andreas, ist es möglich die data mehrere Karten zusammen ze fassen auf eine Karte?
Das kommt auf die Anwendung an (was der Reader ausliest). Ich denke, für normale Anwendungen ist das nicht möglich.
@@AndreasSpiess Danke für die schnelle Antwort.....👍
Good........ Thanks.
You are welcome!
Nice sir
Thank you!
@@AndreasSpiess welcome sir
Does anyone know of a tutorial for the EM4305 standard running at 134.2KHz? Or a pin layout for an FDX-B EM4305 board? Could I use the same Arduino code as for the EM4100?
I only made a video about animal tags on 134.2KHz.
HF tag, arm/disarm Alarm system ESP32 on Home Assistant.
???
Dear sir,
I am not super smart, But i am willing to learn and solve my problem,
My problem is, my car key, which has an rfid, I have lost it somewhere in the house,
is there a way to find it with some project?
I do not think so :-( RFIDs in keys are only short-range
@@AndreasSpiess yeah, thanks for the response, figured that out, there's chip in my second car key, ATA5702, which sends out a continuous signal, and I guess, at a certain distance, my car recognizes it,
Now, all I need to build is a way to detect a rf frequency if that's nearby. The frequency I could figure out with my alternate key...
Any suggestions on this sir, any comment would be a great value...
can i use the grey one with the same code as the bare board?
I do not think so.
@@AndreasSpiess ok thanks. Just seen that you have the wiegand code. So I will use that one. 👍
Hi Andreas, EM4100 and Mifare are product names and not standards (ISO/IEC etc.)
I know. But they are used more than the standards. At least in the Maker scene.
What about cards that sign sended code with key ?
We will (hopefully) see this topic in the next video (crack hotel card)
When will be next video ?
I do not know yet.
How to download firmware binary file from webserver and store it to spiffs storage on esp8266
You can use IOTappstory.com. Or you google. But it is not simple. You have to have code on the ESP plus a server-side software.
I'm going to purchase PN532. Is it good?
I have one in the mail, So I was not able to test it.
What is the video link about "cloning" ?
Will come. Not done yet