top of page

The Fasting Life

Public·27 members
Henry Rogers
Henry Rogers

How to Use MFRC522.h with SPI Interface for RFID Reading and Writing



Hi, everyone.I have some trouble for SPI.h library.I want to use MFRC522 sensor for Arduino , so I download the MFRC522.h library.But when I verify the code, it has error compiling for IDE 1.5.7 like this.




download mfrc522.h



So is there a question left?You haven't yet described which exact hardware you were using. Please provide the exact type of the microcontroller-board and the components you are using.Please provide links to product-descriptions and whenever possible provide download-links to datasheets or attach the datasheets to a posting


Your RFID-reader has its own special-purpose-"microcontroller"-Chip called MFRC522.So do a google-search for Datasheet MFRC522google will find multiple sources where the datasheet can be downloaded.an MFRC522 is pretty common. But the really important information for every potential user here is the chip-type which ismentioned in the amazon-product-description.Only with knowing your RFID-reader is based on the Chip-type MFRC522 makes it possible for helpers to give advice:Use a library that is able to control a MFRC522-Chip.


Upon fresh install of the arduino IDE on Kubuntu 19.10, I downloaded and extracted the MFRC522 library for RFID communication into the /sketchbook/libraries/ directory. No automatic library manager is available in my version of the IDE (2:1.0.5+dfsg2-4.1), unlike suggested in tutorials on importing libraries.


In our example we are using the MFRC522 library that can be downloaded from the Arduino IDE. The PCD Reader itself can support the other standards, but the library used here implements support for the RC522 only.


How to download and install MFRC522 Arduino library for RFID


Download MFRC522.h file from GitHub and use it in Arduino IDE


Arduino RFID tutorial using MFRC522 library and SPI interface


MFRC522 RFID reader module datasheet and pinout diagram


Arduino RFID projects with MFRC522 and Mifare cards


How to fix MFRC522.h: No such file or directory error in Arduino


How to use MFRC522 library with ESP8266 and ESP32 boards


How to read and write RFID tags using MFRC522 and Arduino


How to set the UID of a Mifare card using MFRC522 library


How to unbrick Chinese UID changeable Mifare cards with MFRC522


How to use MFRC522 library with Teensy and STM32 boards


How to connect multiple MFRC522 modules to one Arduino


How to use MFRC522 library with different types of RFID cards


How to make an RFID door lock system with Arduino and MFRC522


How to use interrupts with MFRC522 library and Arduino


How to update MFRC522 library to the latest version in Arduino IDE


How to use MFRC522 library with LCD display and keypad


How to make an RFID attendance system with Arduino and MFRC522


How to use MFRC522 library with serial monitor and serial plotter


How to make an RFID security system with Arduino and MFRC522


How to use MFRC522 library with SD card and RTC module


How to make an RFID car parking system with Arduino and MFRC522


How to use MFRC522 library with servo motor and buzzer


How to make an RFID vending machine with Arduino and MFRC522


How to use MFRC522 library with Bluetooth and WiFi modules


How to make an RFID access control system with Arduino and MFRC522


How to use MFRC522 library with OLED display and LED matrix


How to make an RFID smart wallet with Arduino and MFRC522


How to use MFRC522 library with NFC shield and smartphone app


How to make an RFID pet feeder with Arduino and MFRC522


How to use MFRC522 library with Ethernet shield and web server


How to make an RFID music player with Arduino and MFRC522


How to use MFRC522 library with NeoPixel ring and sound sensor


How to make an RFID alarm clock with Arduino and MFRC522


How to use MFRC522 library with IR remote and relay module


How to make an RFID calculator with Arduino and MFRC522


How to use MFRC522 library with potentiometer and analog input