Questions tagged [rfid]

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

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Best way to read multiple rfid sensors

I need to get information from five arduinos to a raspberry pi. What is the best way to read multiple rfid sensors? I have a few arduinos and can buy more. I want to read at least five rfid sensors ...
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103 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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22 views

Detecting the same RFID tag twice

I have a problem with the MFRC522 library. It seems to me that after the tag was read / written one time correctly, in the next cycle the library always returns 2 on the check whether a card is ...
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How to read Wiegand serial data? (Rx/Tx)

Ok, I am losing my mind... Why is this so damn difficult? Current situation: - 12V Access control device that is connected like this i.e. Wiegand D0 to Tx and D1 to Rx, with voltage dividers. - ...
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155 views

Login to Raspberry Pi Via Python Script

I am trying to make a system to login to the Raspberry Pi with an RFID tag. I successfully connected the RFID reader RC522 module to the Raspberry Pi and I can retrieve the number of the tag and write ...
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18 views

RC522 modules stop working when more than 2 are connected

So, here's a synopsis of what I am trying to do. I want to put 3 RC522 readers side by side inside of a book, facing the cover, that will be constantly on, using a Rpi zero W. When an RFID chip gets ...
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1answer
62 views

Simple python RFID (RC522) authentication system not working

I am a realative RPi noob so forgive me if this is a simple problem. I am making a keycard system with the RC522 reader, and I have everything wired up correctly. It works with writing and reading ...
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188 views

Sharing SPI Adafruit PiTFT and RFID RC522

I have a Pi Zero 1.2 connected to an Adafruit 2.8" PiFTF screen and a RFID-RC522 board. I also have a thermal printer connected to TX/RX, but I don't think this plays a part in my question. The TFT ...
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187 views

error trying to set up RFIDIOT on raspberry

I am new to raspberry and python in general. I followed different guides to set up RFIDIOT (even the documentation and the installation guide on the repository on Github). So far, when I run pcsc_scan ...
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1answer
58 views

Raspberry pi 3 RFID RC522 Card UID is not same with USB RFID Reader

I'm working with RFID RC522 using Raspberrypi 3B+. I'm following https://github.com/mxgxw/MFRC522-python this package and works like a charm. I can able to read the data from the card, able to write ...
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34 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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274 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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766 views

Problems with RFID-RC522 and Raspberry PI B

I'm trying to use the RFID-RC522 with my RPi. The script work but I dont get any response no matter how long or how many cards I use, the module is working because I tested with an Arduino. I use this ...
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1answer
36 views

RFID RC522 reader pigpio check error

I'm trying to connect Raspberry PI 3 B+ with RFID-RC522 (following this guide https://www.raspberrypi-spy.co.uk/2018/02/rc522-rfid-tag-read-raspberry-pi/). But I got stuck at the hardware ...
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4k 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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1k 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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458 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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2answers
1k views

rfid hf module for pi 3

I would like to create system which recognize products in store. What I want to use is RFID HF technology, because of it's perfect work range (1-2m is perfect for me). Unfornatelly every rfid reader ...
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301 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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570 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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463 views

How can I recieve 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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Raspberry Pi 3B RFID RC522 - not reading data

I know this topic has been already discussed in many aspects here and other forums but I haven't found help for my problem (which I guess may be just slightly different than in older topics because ...
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read a RFID card MiFare 1k classic through a PN532 uart reader with serial.read()

I'm trying to read my rfid card MiFare 1k classic with a PN532 breakout board through UART with a simple python script. I installed libnfc, the nfc-poll example program reads my card perfectly fine. I ...
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27 views

Are There any MFRC522 Compatible Libraries for AndroidThings?

I am building a program that reads and writes to RFID tags. Are there any libraries that let me read and write to RFID tags? I have checked Galarzaa90's RC522 library, but I don't think RFID tags can ...
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Why does the RDM6300 not read RFID tags anymore?

I've previously used the RDM6300 with the Raspberry Pi 1 and it worked flawlessly. After switching to the Raspberry Pi 3 it won't read RFID tags anymore. I'm certain I've connected everything ...
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217 views

Problem with RFID-RC522 and Raspberry PI Background script

I am working a project to read an RFID tag, and make the buzzer sound. It works correctly in foreground. I call the python script via /etc/rc.local and it is triggered when I execute /etc/rc.local via ...
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1answer
5k views

Changing RFID key for RFID-RC522

I have been playing around with my RPi2B (with Jessie), an adafruit breakout board and a RFID-RC522. I followed a guide to make it work, and it works like a charm Guide for adding RFID-RC522 to RPi2B ...
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1answer
2k 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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773 views

How to use RC522 RFID on spidev1.x on Raspberry Pi 3

I followed this https://raspberrypi.stackexchange.com/a/56513/57412 trying to use my RC522 on spi 1.0 but I'm stuck. Could someone give me a hand wiring correctly (I hope it is) and how to use the ...
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338 views

using iso 15693 NFC tags on Raspberry with rc522

Is it possible to read/write ISO 15693 NFC tags using an RC522 chip? So far I do not have much experience with the chip, I downloaded this https://github.com/mxgxw/MFRC522-python library but ...
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1answer
395 views

I Can't Getr my PN532 NFC Module to work with Raspberry PI2

I have a Raspberry PI 2 and a PN532 NFC Module, but I can't read it I keep getting this errors when I run nfc-list: error libnfc.driver.pn532_spi Unable to wait for SPI data. (RX) ...
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2k views

Impossible to scan RFID tags using libnfc, PN532, and RPi3

I recently bought this NFC/RFID reader PN532 module V3 I want to use it with my raspberry pi 3. I have install and configured the library libnfc. The PN532 is connected with I2C. I have well enabled ...
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1answer
688 views

RPi+RDM6300 Serial port not working

I'm trying to use my RDM6300 module with the Raspberry Pi 3 as show on this site: https://behindthesciences.com/electronics/raspberry-pi-rfid-tag-reader/ I disabled the terminal tty by putting in /...
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1answer
462 views

Use RFID reader AND a 4x4 matrix keypad with breadboard

I am trying to set up a pi to use rfid to scan a card and if the card is correct, the user will enter in a 4 digit code into a 4x4 matrix keypad. Each device works perfectly fine independently however ...
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2answers
506 views

Raspberry PI 3 B, cannot find usb RFID reader, rc10c-usb-8h10d

I have Raspberry Pi 3 B board and I was install latest Raspbian image with desktop based on Debian Stretch. Now, when I connect my usb rfid rc10c-usb-8h10d 125kHz to rbPi3 board on usb, and in ...
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442 views

Raspberry Pi3 conflicting overlays

I have a Rpi3 with 2016-03-18-raspbian-jessie. I want to simultaneously connect a RC522 RFID Reader and a 5" touch screen LCD (waveshare). With this config.txt the 522 reader works fine: dtparam=spi=...
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1k views

UHF RFID PYTHON CODE? [closed]

Hi recently I purchased UHF RFID from China supplier https://ruifanelec.en.alibaba.com/product/60620230740-218430589/Hot_Sell_Free_SDK_Long_Range_Integrated_TCP_IP_UHF_RFID_Reader.html?spm=a2700....
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1answer
473 views

How do I send data from multiple RFID readers to the Raspberry Pi wirelessly? [closed]

I've done some research and found out about XBees. Can I use this with RFID readers? I am planning to use RC522 RFID reader as its the cheapest option for me at the moment. I am open to any advice or ...
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0answers
87 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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2k views

BCM.GPIO and BOARD.GPIO

For a school project I wanted to use a 128x64 OLED i2c OLED screen and a RFID reader. I tested everything separate and it worked, but when I wanted to join everything in my main program it failed, ...
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991 views

How to connect Multiple RFID Readers to a Single Raspberry Pi [duplicate]

I would like to interface multiple RFID Readers to a single Raspberry Pi. Any option can be chosen either wired or wirelessly.
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2answers
12k views

Connecting to an RC522 RFID reader

I'm trying to connect an RC522 RFID reader to the a Raspi via its SPI port. Up till now, I have tried several different pieces of code that are supposedly working, however, I have had no success with ...
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1answer
671 views

'module' object has no attribute 'openSPI' on Raspberry Pi 2

I'm trying to use the rPi SPI (read from RFID-RC522) port using this repo. When I'm trying to run test-nRF.py on a Raspberry Pi, I'm getting the following error: pi@raspberrypi ~/SPI-Py $ python ...
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2answers
3k views

MFRC522 Not working over SPI Interface

I am running (on a Pi3) an MFRRC522 reader - much like this one: It has been working fine, but after I changed SD card, to increase capacity - whilst also doing a new Raspian install I haven't been ...
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4k views

how to enable spi1? / pi 3 and two rc522 RFID readers

Is it possible to connect two RC522 readers with one RaspberryPi 3? As far as I know I should just choose different CS pins for them (Add more than 2 SPI slaves). I have following connections: 1st ...
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1answer
2k views

connect UHF RFID reader with raspberry pi 3 using rasberian [closed]

i have a UHF RFID i am using raspberian os . i connected the tx rx and gnd to raspberry pi . but i dont know how to read a tag. and there is no sdk available for linux platform . can anyone guide me ...
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1answer
412 views

PI2 Reading data from RFID RC522 Mifare

so i am trying to get the data from a mifare card and i can't get the same reading i get on windows. On windows my card data is a 10 digit code like: 4852658522 Even though i can dump the data on the ...
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2answers
121 views

Why do you prefer raspberry pi? [closed]

I am looking for a computer to be placed inside a turnstile. Someone suggested to me that I can use raspberry pi. Yet, I don't have knowledge in it but it sounds interesting so I'd like to try. There ...
3
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1answer
8k views

Connecting RFID reader over USB

I just purchased the RFIDRW-E-USB RFID reader from Priority 1 Design (see this page, datasheet available in PDF form.) I have tried to make it work on my computer (Ubuntu), before plugging it to my ...
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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 ...