Questions tagged [rfid]

RFID stands for "radio-frequency identification" and is used to identify and track objects via wireless communication over short distances.

44 questions with no upvoted or accepted answers
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Pi4J and Mifare RC-522 via SPI

I am having problems with coding a program that allows me to read RFID Tags with Pi4J on my Raspberry Pi 2 Model B. I am totally new to Python and would prefer a program written in Java to save some ...
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492 views

Raspbian Jessie+ breaks SPI (RFID Reader MFCR 522)?

Long version: I have a very odd problem: I connected a Mifare MFRC 522 RFID Reader to my raspberry Pi (it handles communication via SPI). For that I used one of the many Tutorial already on the ...
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34 views

How to connect an HID RFID reader to my Raspberry Pi

I have seen plenty of tutorials to connect an RC522 module to a Raspberry Pi, but I have been given an HID iClass SE reader to integrate into our system which runs off a Raspberry Pi 3B. I have no ...
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45 views

Problem in the SPI communication with RFID-RC522 (spi mode)

I have some trouble using the RFID-RC522 reader with my RPi. It was working in the past, but now it stopped. I'm trying to find if a configuration changed somewhere and I also looked at the code of ...
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59 views

change mfrc522 module SPI to I2C

I'm working on a project where I need to use touchscreen and RC522 senzor on same Raspberry Pi, now I need to change senzor from SPI to I2C in order to do that I need to change mfrc522 module which ...
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224 views

Reading ISO15693 SLIX2 18000-3-1 RFID tags with Raspberry Pi

There are Raspberry Pi components like RC522 that can read NFC tags, and it only supports ISO/IEC 14443 A/MIFARE and NTAG. We can't use those. We are looking for a component that can read ...
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47 views

RC522 RFID Module under heavy load?

We are planning to use RC522 RFID Module with RaspPi for authenticating guests at an event and am wondering if this is a good idea as there could be up to 500 guests / hour. Our system will simply ...
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120 views

No response from RFID HAT

Model: Raspberry Pi 3 Model B Vi.2 HAT: RaspberryPi-B1 v1.3 I just bought RaspberryPi Hat RFID/NFC board (RaspberryPi-B1 from ib technology). I've spent all day trying to get a response from it, but ...
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402 views

How construct MISO byte order with SPI interface

I have a raspberry Pi 3, model B. I have an RFID-RC522 hooked up to it using SPI. I want to read from it, raspi being master device, RFID being slave(MISO). I am struggling to construct the correct ...
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28 views

Cannot read tag with RFID-RC522

I have some trouble recently while reading a tag/card with my RFID-RC522. I can make it works on one RPi, but on the second one, it doesn't (previously it was also working, but I don't know what ...
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43 views

RFID to Raspberry pins

I am working on a school project and need to connect Rfid RC522 and tuchscreen to raspberry, problem is that tuchscreen is using same GPIO pins as Rfid, I Got suggested connect RFID using I2c And use ...
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70 views

My rfid-rc522 reader stops reading after some time, how can I debug it?

I'm using the reader below to read mifare cards (13.56mhz), I have an electron/node.js application for this. For some reason after an uncertain amount of time(shortest time I noticed was about 30 ...
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41 views

Use of pi-rc522 to control RC522 RFID module

I failed to get my RC522 module to work using the MFRC522 library having set up the module using a Raspberry Pi 4 with Python 3.7 according to the instructions in https://www.raspberrypi-spy.co.uk/...
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32 views

Input() called from GPIO input (button press) returns error

I'm learning Python whilst tinkering with various 'kits' I got for my Raspberry Pi. Currently messing around with the RFID-RC522, a simple to use RFID read/write board. I have independent Write.py ...
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359 views

Problem with USB RFID Reader and Raspberry pi 4

Firstly I'm just a beginner trying to get into pi world so my knowledge is minimal at this point. I'm trying to make USB RFID card reader work on raspberry like it works on my Windows pc, imitate ...
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228 views

How to add 2 RFID readers to Raspberry PI 4

I managed to install 1 rfid reader following this link tutorial but i have no idea how to read with 2 and know from which one reads
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66 views

Read RFID tag with Parallax RFID module

I'm using Parallax RFID Read/Write Module - Serial, this datasheet and trying to set module in active mode (LED light goes from GREEN to RED) with python code and then actually read tag. After running ...
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181 views

RFID reader/writer

I'm creating a clocking in system for work and I'm considering using a raspberry pi for the card interface. Having never used one before I just want to check if this is possible. I've seen a few ...
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1answer
198 views

RFID RC522 Clone Script Unicode Error

I've set up a RC522 Card on my pi using This Tutorial and hacked together the Read.py and Write.py scripts into a Clone.py script: #!usr/bin/env python import RPi.GPIO as GPIO from mfrc522 import ...
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1answer
2k views

RFID RC522 Reader & Chromium Web Page

I'm having a bit of difficulty locating a specific example, however I have found people referencing that they have accomplished what I am looking for. At a basic level, I have a webpage being served ...
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2k views

How do you get an RFID reader to work with Raspberry Pi 3 and UWP?

everyone! This question is in relation to my Raspberry Pi 3 and Windows 10 IoT Core project. I intend to use an RFID Reader (short range only), along with an universal windows application, plugged to ...
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1answer
343 views

Parallax RFID Serial Not reading tags

I am a complete newbie with Raspberry Pi and any type of hardware prototyping. I have been trying to get a Parallax RFID working with my Pi 3. I currently have it wired to the GPIO using BCM and the ...
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757 views

Raspberry Pi Zero 433mhz transmitter fails but works on raspberry Pi 2

So I am using some 433mhz modules. I had them setup on my raspberry Pi2 and everything worked perfect. They could transmit and receive signals. I switched the entire configuration over to a raspberry ...
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1k views

Connect two SPI RFID readers in the Raspberry Pi B +

I followed this tutorial to connect one RC522 RFID reader in a Raspberry Pi. http://www.nikolaus-lueneburg.de/2014/06/rfid-rc522-modul-mit-spi-schnittstelle/ I'm able to connect it to work with ...
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4k views

RFID RC522 Stops reading data after reading data continuously

I'm trying to make RFID RC522 work with my Raspberry Pi 3 B+. I use the library MFRC522, and the the sensor can read data most of the times. However if I just put the card on the sensor it will stop ...
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3k views

Connect RFID/NFC reader/writer using UART or SPI?

I have an Raspberry Pi model B, and I want to hook up this RFID/NFC reader I got. This is the one I have. It has TX, RX, VCC, and GND. When I try to hook up TXD -> RXD and RXD -> TXD (or TXD -> TXD ...
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120 views

Raspberry Pi USB Devices

I have two USB RFID. They are connected to Raspberry Pi and sends data to pi. How can I know which one is sending data? Note: Running only one RFID at the same time.
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1answer
4k views

Cloning RFID tags with Raspberry Pi 3 and RC522?

I've looked around a lot now and can barely find any information on how to clone RFID tags with the Raspberry Pi, I've seen plenty of content on how to do it using an Arduino but I would really rather ...
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27 views

i need execute code when user input number in terminal in python3

I have this python3 code. import RPi.GPIO as GPIO import requests payload = {} headers = {} GPIO.setmode(GPIO.BCM) GPIO.setup(14, GPIO.OUT) string = input() def buclick(event): url = "http:/...
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30 views

Sending RFID Data ( Keyboard Data) to a server

I am using Raspberry Pi 4 2GB Version and an USB RFID Reader like this (https://tr.aliexpress.com/item/32790685506.html) to take RFID Card data and I am determining an access control system with it. I ...
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20 views

Read RFID tag and display chart via HDMI

I'm a beginner in Raspberry Pi developing, I'm more familiar with embedded programming. But now, I have got a project, where I definitely need the performance and GUI of an Raspberry Pi :) Overview I'...
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90 views

How to wire an electromagnetic lock to my raspberry pi

I am trying to build an RFID controlled electronic lock using my raspberry pi 4. I am still brand new to robotics and so far have only been able to turn a LED on and off. I bought the following ...
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491 views

Basic Python interface to use with UHF RFID reader?

I have a Chinese UHF RFID reader that I'm using with a RasPi for a warehouse tracking project and it came with only a Windows SDK. The dense protocol document they provided in very rough English is ...
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118 views

How to configure the RaspberryPi-B1 RFID reader by Eccel?

I am trying to configure the B1 RFID hat on my raspberry pi since it is a cleaner solution than using a USB RFID reader. However I have ran into some issues. Firstly, the documentation supplied by ...
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123 views

raspberry pi with udp?

I wanna use the Raspberry Pi to detect RFID to control the video of Unity. My method is: Raspberry Pi reads the value of UDP and sends a message back to the unity (Raspberry Pi and Unity use the ...
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0answers
58 views

MFRC522 and Bluetooth not work together

I have a program in which I use pyqt5, MFRC522 and bluetooth. I have 3 threads, one for the interface, one for the MFRC522 and one for the bluetooth. If I run the MFRC522 and the bluetooth separately ...
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2answers
1k views

How do I use three RC522 RFID readers together?

Ok, So I have one RC522 reader working with no issues. I want to have 3. I don't care which receiver picks up the RFID tag, I just want to know whenever a tag was picked up at all by any of them. ...
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0answers
780 views

module RFID-RC522 MySQL, Python

I have the following problem. I am working with Python and RaspberryPi 3 recently. My task is to write the data (RFID together with date and time into the MySQL database). Date and time works, they ...
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0answers
811 views

How can I receive data from UHF RFID reader's USB port to my raspberrypi controller

I am new to raspberry pi, currently we want to develop gate control with open/close boom-barrier so we are using an UHF RFID reader and a raspberry pi. I bought a RFID reader that has a USB connector ...
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0answers
1k views

Automatic sending RFID tag ID to MSSQL on a PC through Raspberry Pi using Pymssql

A RFID-RC522 connected to Raspberry Pi and a python script which reads RFID tag and prints out the result of the reading. And the aim of the project is to transfer the ID of the RFID tag to a ...
0
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1answer
6k views

Active Long Range RFID system for Raspberry Pi 3

I have bought those cards: UHPPOTE 2.4Ghz RFID Active Card for Long Distance Range Reader Vehicle Parking System. I need to buy certain RFID readers to be able to read data from those cards and work ...
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3k views

UHF RFID Reader with Raspberry Pi

I have a RFID Reader like the one posted on this link: http://www.ebay.com/itm/EPC-Gen2-UHF-Integrative-5-7-Meters-Long-Range-RFID-Reader-with-free-SDK-/171473207602 It has RS232, RS485 and Weigand ...
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1answer
49 views

How to dynamically determine objects based on some uniqueness?

As the title states I looking for a way to (detect and then) determine a object within some range. The object will be forklift or "train" in the factory. Main goal is to provide some GUI from which it'...
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2answers
4k views

Best hardware+software to read UHF RFID tags?

I would like to sew in, UHF RDIF laundry tags into clothes and be able to read e.g. what do I have in my bag (i.e. multiple of them from up to 50 cm distance). Here is example set of such tags: ...