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Hey! this is a wicked video TYSM so it looks like each RFID reader use the same digital pins in the Arduino, can you add say up to ten RFID readers to this configuration?

Hi does anyone have the program on arduino for this type of rfdi puzzle?

Cool. I needed something like this. Thanks.

I just found your videos and was wonder would it be possible to use more scanners than 4 and if so how many do you think you could run on a single board

ola boa tarde,como faco para cadastrar as tags

For those struggling with having several readers. I had the same issue and had to check 2 things: 1 - that the reset should go to the right pin, 2 - that I had good connection on all pins. If you have some resistance, it means the connection is not great and it will probably not work. I had to dish the jumper wires I had and get some good connectors. In doubt, test the resistance to see how good you connection is.

Excellent project. I am looking to develop a project with two MFRC522 readers in which i need to display the uid of the card and which reader is reading the card (Either card 1 or 2). Is my usecase possible with 2 rfid reader and esp32?

really nice project!!

👍🇲🇦

baravo 👍👍💯🤗👏👏

Молодец! Cool!!!

Finally a woman doing electronics!. Most channels are men

Oh my god, I was looking for this video my whole life! :( I was desesperate to find a correct wiring diagram and explanation, thank you so much! I have a plan to make a plan where the players should move the job. It is the successive activation of the readers in a certain order that allows the opening of an electromagnet. I am still very far from having succeeded..! One question, are you French? :) J'ai vu que le livre était en français :3

Hey awesome project! in ur code you use: {0x4B, 0x17, 0xBC, 0x79}, {0x8A, 0x2B, 0xBC, 0x79}, {0x81, 0x29, 0xBC, 0x79}, {0xE6, 0xDF, 0xBB, 0x79}, How does this work and how can I change this into the numbers of my cards?

Il semble que le fonctionnement dépende des lecteurs. Alors que tous semblent identiques, avec certains ton montage ne marche pas du tout car il y a confusion sur les MISO. En fait, quand tu branches 2 modules SPI ensemble, tu as MISO, MOSI et CLK qui sont communs (comme sur ton schéma). Or avec certains modules RFID, le MISO commun fait qu'un seul module fonctionne. La solution semble être d'avoir des MISO séparés. A priori cela peut marcher avec la librairie Sunfounder.

thank you so much

which app are you using

this is amazing

where did you write the code , i mean what software or editor?

hi, does the cards should be in an exact order or it doesn't matter? thanks and great video

I found it just now. ehehe Great work Miss! Just a question: can a single Arduino manage different readers with different codes? Ex: Tag A valid only when on reader 1, tag B only on reader 2...and so on...

Some people all over the internet face issues when connecting multiple RFID boards in parallel to Arduino board. When 2+ readers connected it stop working. One reader works perfectly but 2+ pcs. not. The problem is weak MISO output of some reader board. Checked some Russian electronics forums and found answer how to make multiple readers work. You need to connect MISO outputs through the OR logic gate to Arduino. It is possible to use logic OR IC chip or just simple diodes+resistor OR element. Connect anodes of diodes to MISO reader outputs. Then tie all cathodes together, put 4k7 resistor to the ground (yeah we just built OR logic gate) and then connect to the MISO pin 12 (on Arduono Uno). That's it! Tested with 3 readers. Work like ice ;)

Hey Anna I have my smart home project with Rasperry pi and i want to make a mobile application to control it faraway can u talk more specifically about how to make it ? god bless you

1- it's a great video 2- annaane how you connect your app with the server,you used a cloud ?

awesome i love it please send me email to contact because i can do same tye of project in university

What if you want each reader to open a different door? Like in an office situation

sweet, I was looking for an example with multiple RC522 readers. Exactly what I needed. PS: haven't tried your setup, but from reading the code it looks like one can easily cheat the system by simply tapping/removing the same card 4 times as it only counts the number of valid recognised tags

cool project and great technology and presentation skills!

do the tags have to be in a specific order or just be the correct ones?

What did you use to develop the android app?

How do I attach multiple RFID like that?

Dear Anaane, awesome job. I have tried your code, an it works. but it doesn't matter where i place the tags (the order is not impartant), i can also use the same tag 4 ties and the door wil always open. Is that how you intended it? Thanks for your time :)

You really have great skills, why don't you make a Udemy course onto how to do this. It will be win-win for both. You can earn and we can learn a great skill set from you

Is your own app?

please give me the full wiring diagram with 4 rfid and the code..in github there is only wirining diagram with arduino and rfid, but manual switch and output control isn't availavle

Do you happen to have a wiring diagram with the bread board included? Thank you!!

you have given diffrent different ip address and port number for many fuctions and my question is How did you get that?

How did you connect relay with raspberry pi server ??

hi thanks for the video and it is really awesome. i would like to ask if it is possible to reset the buffer size? is it possible to have no limit in tapping the rfid cards to the rfid reader?

very good

This is literally my dream project.

Great innovation Hanan. Genius girl.

You make it look so easy ! :D Bravo !

In love with every aspect of this video !

Hey! This is awesome!!! *V* great video! You should try to share it everywhere on forums and reddit...etc.

Thanks for uploading this. Small issue though, it is possible that the same RFID card can be used multiple times on the same RFID reader to get the door to open. The code does not check if a card has been used before, or if the card is used on a specific reader.

Nice project. I'm facing some issue with my RFIDs. When I connect 1 (one) RFID, then it works fine. But when I connect more than one (2 or 3), The controller (Arduino) doesn't find any readers. Get these lines on the serial monitor. Reader 0: Firmware Version: 0x0 = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Reader 1: Firmware Version: 0x0 = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Reader 2: Firmware Version: 0x0 = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Reader 3: Firmware Version: 0x0 = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Can you please help with this? Or anyone here can help me? Thanks.