🔑 JavaScript class to control MFRC522 RFID Module with your Raspberry-pi
MFRC522 is integrated in all types of 13.56MHz RFID passive contactless communication methods and protocols.
It uses the ISO14443 specification to communicate to MIFARE cards (also known as NTAG, NFC) MIFARE wiki ISO14443 wiki
- Read uid & card memory
- Write card memory & card key
The SPI master driver is disabled by default on Raspbian. To enable it, use raspi-config, or ensure the line dtparam=spi=on isn't commented out in /boot/config.txt, and reboot. If the SPI driver was loaded, you should see the device /dev/spidev0.0
Install the latest version via npm:
Can only be installed on rpi, through dependency to wiring-pi
npm install mfrc522-rpi
# read uid
node /node_modules/mfrc522-rpi/test/read.js
# dump card
node /node_modules/mfrc522-rpi/test/dumpCard.js
# dump NTAG213 (sticker)
node /node_modules/mfrc522-rpi/test/dumpNTAG213.js
# write card
node /node_modules/mfrc522-rpi/test/write.js
Find examples in "test" directory
On your NFC Chip are key and data register (see card register). Block 7 is a key register It contains the keys for data register 8, 9, 10. There are 2 keys located in block 7:
- KEY B: first 6 bit of block 7 - in hex: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- KEY A: last 6 bit of block 7 - in hex: 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
- Accessbits: 4 bits in the middle - in decemial: 255, 7, 128, 105
You can authenticate on block 8, 9, 10 with the key's from block 7
The module is configured to authenticate only with Key A.
Physical memory content of the chip/card which was included on the RFID-RC522 Module
Block: 0 Data: 89,229,151,26,49,8,4,0,98,99,100,101,102,103,104,105
Block: 1 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 2 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 3 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 4 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 5 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 6 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 7 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 8 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 9 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 10 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 11 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 12 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 13 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 14 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 15 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 16 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 17 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 18 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 19 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 20 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 21 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 22 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 23 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 24 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 25 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 26 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 27 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 28 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 29 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 30 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 31 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 32 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 33 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 34 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 35 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 36 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 37 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 38 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 39 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 40 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 41 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 42 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 43 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 44 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 45 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 46 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 47 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 48 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 49 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 50 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 51 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 52 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 53 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 54 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 55 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 56 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 57 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 58 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 59 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
Block: 60 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 61 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 62 Data: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Block: 63 Data: 0,0,0,0,0,0,255,7,128,105,255,255,255,255,255,255
(not tested) Authenticate on block 7 with key from block 7, write new key to block.
Manufacturer documentation of MFRC522
https://github.com/miguelbalboa/rfid
https://github.com/mxgxw/MFRC522-python
Link to Amazon (Germany): Link
See the CODE
See the LICENSE file for license rights and limitations (MIT).