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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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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Raspberry Pi Access Control System [closed]

I want to be able to have a Raspberry Pi monitor when people "Check In" and "Check Out" of a building. The idea would be that when they enter the building they would enter a code, or maybe scan an ...
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260 views

Parallax RFID + PI only reads first time

I used the following code from this post import serial import time serial = serial.Serial("/dev/ttyAMA0", baudrate=2400) while True: if serial.inWaiting() > 0: read_result = serial....
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125 kHz USB RFID

After some experimentation with a MFRC-522 13.56 MHz RC522 RFID Reader I decided to try 125 kHz tags. I bought a 125 kHz USB RFID Contactless Proximity Sensor Smart ID Card Reader EM4100 ...
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ITEAD PN532 on Pi 3 with libnfc

For the past weeks I have been trying to get the ITEAD PN532 NFC board working on a Raspberry Pi 3 running Raspbian Jessie (2016-03-18) using libnfc. Here's some info on the board itself. It has two ...
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1answer
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Using a Raspberry Pi as a "desktop" for a UHF RFID device [closed]

I am trying to use a UHF RFID reader and they are mostly desktop compatible, can I use my Raspberry Pi as that "desktop" and if possible, can you recommend a particular UHF RFID reader?
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how to use two rfid rc522 nfc tag reader with a raspberry pi?

I am currently using a rfid rc522 nfc tag reader with raspberry pi using the MFRC522-python code. In my project I need to collect data from two rfid rc522 cards at the same time, rc522 are located at ...
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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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Caused by: java.lang.RuntimeException: libname: linux-arm.lib not found

uname -a: Linux raspberrypi 4.1.6-v7+ #810 SMP PREEMPT Tue Aug 18 15:32:12 BST 2015 armv7l GNU/Linux Trying to launch application that controls RFID reader. 2016-01-07 21:42:19.593 [main] INFO ...
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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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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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Getting RFID-RC522 to work with Raspberry Pi 2

Yesterday I bought the famous RC552 RFID read/write module to use with my Raspberry Pi 2B (I've also got an Arduino in the mail right now) and I've been trying to get it to work but I just can't. I ...
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Python Serial library returning unexpected characters from USB RFID reader

I'm trying to write a simple Python script to print RFID tag numbers to the terminal. Code example below. Using a Pi 2 Model B, with the reader here attached via USB. I'm having difficulties ...
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1answer
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Determine which USB port/RFID reader the data is coming in

I'm using Raspberry Pi Model B+. I'm new to the RPi and I don't really know the search terms for my question. I have four RFID readers connected to the four USB ports of my RPi. I wanted to know if ...
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Raspberry Pi and the ACS ACR1252U USB NFC Card reader

I'm using a ACS ACR1252U card reader (http://www.acs.com.hk/en/products/342/acr1252u-usb-nfc-reader-iii-nfc-forum-certified-reader/) connected via USB and to be honest I have no idea how to get it ...
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using wiringPi and bcm2835

i am trying to make an aplication where i integrate rfid reader and an LCD, i have acomplished this by two different libraries, wiringPi for LCD and i found a library called rc522 for the rfid. and ...
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How do I get my Raspberry Pi to get data from my Parallax RFID reader

I have a Raspberry Pi model B+ I'm trying to read RFID tags using the Parallax RFID reader. I've downloaded the python gpio tools, as well as libnfc. When I run nfc-list, it says no devices found. ...
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Raspberry Pi RFID interfacing

I am trying to interface my raspberry pi to a RFID reader, to make an library management system. I have brought a RFID reader whose data sheet can be found here. I have found a python program which ...
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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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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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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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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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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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876 views

Troubleshoot USB RFID desktop reader ACS ACR1281U

I have a USB desktop reader "ACR1281U" which is a basic keyboard emulation reader. When you "swipe" the card it'll output it's ID and run a ENTER-command. When I plug this into my Raspberry Pi it'll ...
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454 views

Activate RPI-cam with rfid signal

Can anyone give me some advice on the next. Is it possible to activate the RPI-cam with a signal from a rfid reader? Here's the practical enviroment. I am a pigeon fancier and my pigeons are ...
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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
281 views

Connecting a 12V USB device to Pi [closed]

I'm planning to use a long range USB RFID reader (12V) like this with Pi. As Pi USB can supply only 5V, how can I connect it to Pi USB, if it is not external powered..??
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RFID and MFRC522 library

I've been following the instructions of this blog post to set up an RC522 RFID reader and the test script shows me that the reader is working fine. On the other hand I had problems using this tutorial:...
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Connecting a high range (atleast 10m) RFID reader with Pi

Is it possible to connect an RFID reader like the Motorola UHF Reader (Motorola FX7400) with Raspberry Pi..? I just want to know whether these high end systems are compatible with Pi. Mostly NFC (...
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Major trouble with nRF24L01+ controllers and the RF24 library

I've had a hellish last three days. All I've wanted to do is get an Arduino Uno and a Raspberry Pi B+ talking to eachother with these little guys, and after following many different tutorials, I've ...
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1answer
701 views

Is there any generic cheap RF module [duplicate]

Recently I got cheap RF remote controlled plug points. I hacked the remote to control buttons using raspberry pi and it works great. My question is, is there any generic RF transmitter and receiver ...
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496 views

RFID reader for Raspi

Can I use cheap USB RFID reader in my Raspi? Why should I buy an 'expensive' RFID reader like this or this instead of USB reader?

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