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Questions tagged [mfrc522]

29 questions
2
votes
1 answer

RFID Reads PCD_Authenticate() failed: Timeout in communication

I am using an Arduino Uno and I am trying to read a RFID tag with a RC522 RFID Reader Module. The module is connected to the Uno like this: RFID Module with Arduino I have downloaded and installed the Arduino IDE 1.8.19 and downloaded the library…
Proto Adamantium Alloy
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0 answers

SimpleMFRC522 is not working when other threads are starting

So I have a Raspberry pi 4 hooked with a HQ Camera module and a breadboard with an RFID RC522 Chip. I followed the tutorials how to setup the RFID and everything works fine. What I want is to trigger the camera when the RFID Tag is scanned and this…
Newboz
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How can i write a long string to a RFID tag using arduino?

Hey i would like to write a long string like "Hello my name is james and i live in NewYork" in a rfid Tag using arduino. The code for writing in a single block is the following one but i can only write 16 bytes in 1 block .... but the only issue is…
koko
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RFID not reading any card

My RFID wont read any card. The Rfid card is on with red led at D1. I do not know what is the problem though. Below is my code. Please assist The picture is connection between the rfid and…
Jasmine Jafry
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RC522 RFID card suddnely stopped working on raspberry pi

i have RC522 RFID module and recently stopped reading on raspberry pi i enter the write code but nothing happen (tried on diffrent chips ) i have already worked with it few days before and it was working just fine since i thought it damaged i tried…
tessa Brock
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1 answer

Arduino RC 522 write and read data

I'm working on Arduino RC 522 RFID module. I'm want to write some data in the RFID card and read that data to operate a relay. So is that possible? I want to store integer data in the RFID CARD(13.5Mhz).
Rover_bot
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RFID tag shows lines "-----" instead of actual values

RFID tag shows lines "-----" instead of actual values I am trying to copy a RFID tag for a long time. However I have a few things that came to my attention. First of all I managed to change the UID by creating a new function in the RFID library…
Jumike
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Reading MiFare RFID Tags with MFRC522 with STM32 Nucleo

I am trying to read and print the Card UUID using the MFRC522 and Nucleo 411RE board. I am using SPI1, standard connections, using PA3 to drive the CS pin on MFRC522. Here is my code : while(1) { status = MFRC522_Request(PICC_REQIDL, &cardType); …
JSNerd01
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MFRC522 with STM32L072CZ MCU (SPI Failure)

I am trying to configure the MFRC522 module and connect it with the STM32L072CZ MCU to read a RFID card. Studying different github projects, the arduino MFRC522 library and the RC522 datasheet, I've written a basic driver that should work with my…
Shahab
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using an rc522 rfid with a pico w and arduino ide. OR. What is the best way to convert pico sdk programs to use with arduino ide?

I am trying to setup a lock on a robot project. The pico w i'm using I have already programed it using Arduino IDE, it powers a relay to start an RPi4. What I am looking for is arduino code for the RC522 rfid and pico w. I will incorparate that into…
JohnL148
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ESP32/ESP8266 RFID to VSPI and SD card to HSPI

I'm trying to read rfid tag and save it to sd card so I added sd to HSPI and rfid to VSPI, when I only run RFID code it works but when I run both code togather sd card does not works, later I did sd.begin(cs_pin, HSPISD); where HSPISD is the class…
LoNE WoLvES
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2 answers

Problems installing MicroPython Package mfrc522

I purchased a 37 Raspberry Pi Pico sensor package from a company called Keyestone. In it is a RFID sensor that requires the mfrc522 package. Using Thonny I tried to install the mfrc522 package. When I try to download it, Using the "Tools/Manage…
Tom
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i am having errors with esp32 and rfid Mfrc522 card reader

I managed to make my esp32 and mfrc522 card reader work before. but Now first i got this error, *'/esptool.exe' is not recognized as an internal or external command, operable program or batch file. exit status 1 Compilation error: exit status…
akhila vissom
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how to handle if the code is getting stuck at reading MFRC522 module, doesn't retrive if gets stuck. I'm using MFRC522 UART library python

I'm using this MFRC522 UART library in python This While reading if the module gets reset it stops reading doesn't print anything. This is read.py which is calling the external class MFRC522.py #!/usr/bin/env python # -*- coding: utf8 -*- import…
niranjan adhav
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TTGO T-Call ESP32 and RC522 interferring

I am trying to make a device to replace an old paper-based "Sign In - Sign Out" timesheet with a combination of an RC522 RFID module and an ESP32 dev board. I have managed to make it work with a D1 Mini via Wifi however since I am not allowed to use…
RobbAdam
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