Joy-it sbc-rfid-rc522 User guide

3

RFID Module

based on NXP MFRC-522

TABLE OF CONTENTS

1. Overview

2. Pin-Assignment

3. Using with an Arduino

3.1 Connecng the module

3.2 Installing the module

3.3 Example applicaon

RFID Module

4. Using with a Raspberry Pi

4.1 Connecng the module

4.2 Seng up the system

4.3 Installing the module

4.4. Example applicaon

5. Informaon- and take-back obligaons

6. Support

Publ ished: 08 .07.2019 Copyright by Joy-IT 2

RFID Module

1. OVER VIEW

Dear customer,
Thank you very much for choosing our product.
In the following we will show you what has to be observed during commissioning and use. Should you
encounter any unexpected problems during use, please feel free to contact us.

Frequecy 13,56 MHz

Communicaon SPI

RFID Protokoll Mifare

Power Supply DC 3,3V

2. PIN-A SSIGNMENT

Assignment

RFID Module Arduino Raspberry Pi

VCC 3,3V 1 (3,3V)

RST 9 22 (BCM 25)

GND GND 6 (GND)
MISO 12 21 (BCM 9)
MOSI 11 19 (BCM 10)

SCK 13 23 (BCM 11)

NSS 10 24 (BCM 8)

IRQ / /

Publ ished: 08 .07.2019 Copyright by Joy-IT 3

RFID Module

3. USI NG WI TH AN A R DUI NO

3.1 CONNECTING THE MODULE

Connect the RFID module to the pins of your Arduino as shown in the following picture and in the table in
Chapter 2.

Publ ished: 08 .07.2019 Copyright by Joy-IT 4

RFID Module

3.2 INSTALLING THE MODULE

In order to use the module with your Arduino, it is rst necessary to 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.

Publ ished: 08 .07.2019 Copyright by Joy-IT 5

RFID Module

3.3 EXAMPLE APPLICATION

Aer you have successfully installed the library, your module is ready for use.
You can use the following code example and transfer it to your Arduino to start up and test the module.

#include <SPI.h>
#include <MFRC522.h>

#define RST_PIN 9
#define SS_PIN 10

MFRC522 mfrc522(SS_PIN, RST_PIN);

void setup() {

//Initialisierung des RFID-Moduls
Serial.begin(9600);
while (!Serial);
SPI.begin();
mfrc522.PCD_Init();
mfrc522.PCD_DumpVersionToSerial(); //Details des Lesegerätes ausge-

ben

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

}

void loop() {

//Suche nach neuen Karten
if ( ! mfrc522.PICC_IsNewCardPresent()) {
return;
}

if ( ! mfrc522.PICC_ReadCardSerial()) {
return;
}

//Informationsabruf des RFID-Gerätes
mfrc522.PICC_DumpToSerial(&(mfrc522.uid));

}

Publ ished: 08 .07.2019 Copyright by Joy-IT 6

RFID Module

4. USI NG WI TH A RA S PBERRY PI

4.1 CONNECTING THE MODULE

Connect the RFID module to the pins of your Raspberry Pis as shown in the following gure and in the
table in Chapter 2.

Publ ished: 08 .07.2019 Copyright by Joy-IT 7

RFID Module

4.2 SETTING UP THE SYSTEM

If you are already using a current Raspbian system on your Raspberry, you can skip this step and proceed
immediately to step 3.

First download the latest version of the Raspbian operang system here. With the help of a suitable
program (e.g. „Win32 Disk Imager“) you can install the downloaded image le on a micro-SD card.

Once the process is complete, you can insert the micro-SD card into your Raspberry Pi and start it.

Publ ished: 08 .07.2019 Copyright by Joy-IT 8

RFID Module

4.3 INSTALLING THE MODULE

Before you can use the module, it is necessary to install addional libraries.
Open a terminal window on your Raspberry Pi and enter the following commands:

sudo apt-get install python-pip python-dev build-essential
sudo pip install RPi.GPIO

Now open the cong.txt le with the following command:

sudo nano /boot/config.txt

Add the following lines to the end of the le:

dtparam=spi=on

Save the le with the key combinaon CTRL+O, conrm with Enter and exit the editor with the
combinaon CTRL+X.

Restart your Raspberry Pi:

sudo reboot

Now that the preparaons have been completed, the actual library can be installed:

sudo apt-get install git python-def --yes
git clone https://github.com/lthiery/SPI-Py.git

cd SPI-Py

sudo python setup.py install

cd ..

git clone https://github.com/pimylifeup/MFRC522-python.git && cd MFRC522-python

Publ ished: 08 .07.2019 Copyright by Joy-IT 9

Now the scripts for wring and reading the data have to be wrien.

Enter the following command to create the script for reading:

sudo nano Read.py

Enter the following script in this le:

#!/usr/bin/env python

import RPi.GPIO as GPIO

import sys sys.path.append('/home/pi/MFRC522-python')

from mfrc522 import SimpleMFRC522

reader = SimpleMFRC522()

print("Now place tag next to the scanner to write")

try:

id, text = reader.read()

print(id)

print(text)

finally:

GPIO.cleanup()

RFID Module

Now enter the following command to create the script for wring:

sudo nano Write.py

Enter the following script in this le:

#!/usr/bin/env python

import RPi.GPIO as GPIO

import sys

sys.path.append('/home/pi/MFRC522-python')

from mfrc522 import SimpleMFRC522

reader = SimpleMFRC522()

try:

while True:

text = raw_input('Your Text: ')

print("Now place tag next to the scanner to write")

id, text = reader.write(text)

print("recorded")

print(id)

print(text)

break

finally:

GPIO.cleanup()

Publ ished: 08 .07.2019 Copyright by Joy-IT 10

RFID Module

4.4 EXAMPLE APPLICATIONS

The library now installed already contains sample applicaons for reading and wring.
You can start the applicaon for reading with the following command:

sudo python Read.py

Run the le to write a clip or a card with the following command:

sudo python Write.py

Publ ished: 08 .07.2019 Copyright by Joy-IT 11

RFID Module

5. INFOR MATION- A N D TAKE-BACK OBLIGATIONS

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, when you purchase a new device, you can return your old device (which essenally fulls
the same funcon as the new one purchased from us) free of charge for disposal. Small appliances with
no external dimensions greater than 25 cm can be disposed 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 GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn

Possibility of return near you

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 [e-mail] or by telephone.

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.

Publ ished: 08 .07.2019 Copyright by Joy-IT 12

RFID Module

6. SUPP ORT

We are also there for you aer the purchase. If you sll have quesons or problems, we are also available
by e-mail, telephone and cket support system.

E-Mail: [e-mail]
Ticket-System: hp://support.joy-it.net
Phone: [phone] – 66 (9:30 - 17:00 Uhr)

For further informaon please visit our website:

www.joy-it.net

Publ ished: 08 .07.2019 Copyright by Joy-IT 13