Joy-it RFID module User manual

Brand: Joy-it

Model: RFID module

Type: User manual

Joy-it RFID module is a versatile and easy-to-use device that allows you to read and write data to RFID tags. With its compact size and simple interface, it's perfect for a wide range of applications, including access control, inventory management, and asset tracking.

The Joy-it RFID module operates at a frequency of 13.56 MHz and supports ISO 14443A/B, Mifare, and Ultralight tags. It can read and write data to tags with a maximum capacity of 16 sectors, each of which can store up to 4 blocks of data.

The module comes with a built-in antenna that provides a read range of up to 10 cm. It also has a built-in LED that indicates the status of the module and the tag being read or written.

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Pascalstr. 8 47506 Neukirchen-Vluyn

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

Frequency

Communicaon

RFID Protocol

Supply voltage

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Since the module works with a 3 V logic level and most Arduinos work with

5V, we use an Arduino Pro Mini 3.3 V in this example.

If you want to use an Arduino with a 5 V logic level, such as an Arduino

Uno, you need to downgrade all data lines leading from the Arduino to the

module from 5 V to 3.3 V with a voltage translator.

Connect the RFID module as shown in the following picture to the pins of

your Arduino.

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To use the module with your Arduino, you must rst install the MFRC522

library from the Arduino library manager.

In the window that opens, enter the term "MFRC522" in the search eld

and install the library.

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#include <SPI.h>

#include <MFRC522.h>

#define RST_PIN 9

#define SS_PIN 10

MFRC522 mfrc522(SS_PIN, RST_PIN);

void setup() {

//Initialization of the RFID module

Serial.begin(9600);

while (!Serial);

SPI.begin();

mfrc522.PCD_Init();

mfrc522.PCD_DumpVersionToSerial(); //Output details of the reader

Serial.println(F("Scan PICC to see UID, type, and data blocks..."));

}

void loop() {

//Search for new cards

if ( ! mfrc522.PICC_IsNewCardPresent()) {

return;

}

if ( ! mfrc522.PICC_ReadCardSerial()) {

return;

}

//Information retrieval of the RFID device

mfrc522.PICC_DumpToSerial(&(mfrc522.uid));

}

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sudo raspi-config

sudo reboot

sudo apt-get install python3-dev python3-pip

sudo pip3 install spidev

sudo pip3 install mfrc522

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sudo nano Write.py

mkdir /home/pi/rc522

cd /home/pi/rc522

#!/usr/bin/env python

import RPi.GPIO as GPIO

from mfrc522 import SimpleMFRC522

reader = SimpleMFRC522()

try:

text = input('Enter a value:')

print("Hold the card / clip against the sensor:")

reader.write(text)

print("Successfully written.")

finally:

GPIO.cleanup()

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Now type the following command to create the script to read:

Enter the following script into this le:

Save the le with the key combinaon CTRL+O, conrm with Enter and

leave the editor with the combinaon CTRL+X.

sudo nano Read.py

#!/usr/bin/env python

import RPi.GPIO as GPIO

from mfrc522 import SimpleMFRC522

reader = SimpleMFRC522()

try:

id, text = reader.read()

print(id)

print(text)

finally:

GPIO.cleanup()

4.3 EXAMPLE APPLICATIONS

To run our sample codes, run the le to describe a clip or card with the

following command:

You can start the applicaon for reading with the following command:

sudo python3 Write.py

sudo python3 Read.py

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Pascalstr. 8 47506 Neukirchen-Vluyn

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

5.2 EXAMPLE APPLICATIONS

To test the module on your micro:bit you rst need a suitable library. To do

this, click on the "Add extension" buon in your MakeCode project and

search here for the term "RFID". Install here the "rd-mfrc522" library

from Joy-IT. Now you can transfer the following blocks into your project:

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Pascalstr. 8 47506 Neukirchen-Vluyn

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Pascalstr. 8 47506 Neukirchen-Vluyn

6.2 EXAMPLE APPLICATIONS

To use the RFID module you need the micropython-mfrc522 library. Please note that this

must be present on your Raspberry Pi in order to run the sample code. Now transfer the

following sample code to your Raspberry Pi Pico:

from mfrc522 import MFRC522

import utime

# initialize RFID object

reader = MFRC522(spi_id=0,sck=18,miso=16,mosi=19,cs=17,rst=0)

print("Hold a tag near the reader")

# define parameters for acessing tag

key = [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF]

PreviousCard = [0]

writeBlock = [0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0xff,

0x0b, 0x0c, 0x0d, 0x0e, 0x0f]

blockToWrite = 9

while True:

# start commuication with RFID reader

reader.init()

(stat, tag_type) = reader.request(reader.REQIDL)

# check if a tag can be read

if stat == reader.OK:

# read tag

(stat, uid) = reader.SelectTagSN()

# check if tag is the same as before

if uid == PreviousCard:

continue

# check if reading went well

if stat == reader.OK:

# print base information about tag

print("Card detected {} uid={}".format(hex(int.from_bytes(bytes

(uid),"little",False)).upper(),reader.tohexstring(uid)))

print()

# print all blocks of the tag

print("Read from tag:")

reader.MFRC522_DumpClassic1K(uid, Start=0, End=64, keyA=key)

print()

# check if tag can be written on

status = reader.auth(reader.AUTHENT1A, blockToWrite, key, uid)

if status == reader.OK:

# write on tag

status = reader.write(blockToWrite,writeBlock)

# check if writing was succesful

if status == reader.OK:

# print newly written block

print("Newly written block:")

reader.MFRC522_DumpClassic1K(uid,Start=9, End=10, keyA=key)

print()

else:

print("Unable to write")

else:

print("Authentication error for writing")

PreviousCard = uid

else:

# reset already read tag

PreviousCard=[0]

ume.sleep_ms(50)

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Our informaon and take-back obligaons according to the Electri-

cal and Electronic Equipment Act (ElektroG)

Symbol on electrical and electronic equipment:

This crossed-out dustbin means that electrical and electronic appliances do

not belong in the household waste. You must return the old appliances to a

collecon point.

Before handing over waste baeries and accumulators that are not enclosed

by waste equipment must be separated from it.

Return opons:

As an end user, you can return your old device (which essenally fulls the

same funcon as the new device purchased from us) free of charge for dis-

posal when you purchase a new device.

Small appliances with no external dimensions greater than 25 cm can be dis-

posed of in normal household quanes independently of the purchase of a

new appliance.

Possibility of return at our company locaon during opening hours:

SIMAC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn, Germany

Possibility of return in your area:

We will send you a parcel stamp with which you can return the device to us

free of charge. Please contact us by e-mail at Service@joy-it.net or by tele-

phone.

Informaon on packaging:

If you do not have suitable packaging material or do not wish to use your

own, please contact us and we will send you suitable packaging.

Joy-it RFID module User manual

Brand: Joy-it

Model: RFID module

Type: User manual

The module comes with a built-in antenna that provides a read range of up to 10 cm. It also has a built-in LED that indicates the status of the module and the tag being read or written.

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Joy-it RFID module User manual

Joy-it RFID module User manual

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