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Newest 'rfid' Questions - Raspberry Pi Stack Exchange
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Learn more about TeamsQuestions tagged [rfid]
RFID stands for "radio-frequency identification" and is used to identify and track objects via wireless communication over short distances.
148 questions
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1
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1
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128
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1
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answers
306
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connect RFID - RC522 directly to a PC using USB to TTL converter [closed]
I want to connect RFID - RC522 (Link: https://robu.in/product/rc522-rfid-card-reader-module-13-56mhz/) directly to a PC (Ubuntu 20.04) using CP2102(6-pin) USB 2.0 to TTL UART serial converter(Link: ...
0
votes
0
answers
200
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Cannot determine pins to use when connecting 3 SPI devices to Pi 5
I am trying to connect 3 SPI devices to my pi 5, they are all RFID-RC522 modules and so they all have the same device id, so I put them on separate busses.
I researched and selected these three ...
0
votes
0
answers
92
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Multiple MFRC522 RFID readers on Raspi Zero
For university I have to connect multiple RFID readers to my RasPi. Ideally 8 at a time. However after weeks of testing I have not managed to make it work. I figured out that the setmode GPIO.BOARD ...
-1
votes
1
answer
150
views
Rasberry Pi Pico + RFID-RC522 restarts pi pico
I am using this micropython library -> https://github.com/wendlers/micropython-mfrc522/blob/master/mfrc522.py
I have my pi pico connected to my raspberry pi 4 over USB. When I run read.do_read() it ...
-1
votes
1
answer
54
views
Error when running python read.py and write.py (MFRC552) library
so im getting an error while setting up my RFID552 on RP 4B
i downloaded this library https://github.com/mxgxw/MFRC522-python
When I run the Read.py, i get an error saying error in line 33 which is ...
2
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0
answers
2k
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0
votes
0
answers
75
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Raspberry 3 with touch screen and RFID scanner power supply
I have some cheap scanner I'm playing around. It's USB connected and it works.
I wonder can it be safe to make separate power for scanner, bcs allready have touch screen taking power from raspberry ...
0
votes
0
answers
58
views
How to Read Result from Two Different USB Ports and Differentiate Them
I have a project where I control to access door with a Raspberry Pi. I want to connect two USB RFID readers to the Raspberry Pi. based on the read from each one, it will open a specific door. Right ...
1
vote
0
answers
271
views
How to read RFID tag value using Wiegand protocol?
I am trying to read RFID tag values using Paxton P75 reader. Here I have already connected reader with wiznet w5500 pico. and apply https://github.com/Rajan244/RFID/blob/main/wiegand.py to read the ...
2
votes
0
answers
111
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How to decode RFID value?
I am working on an attendance system project using Raspberry Pi Pico W, EM - 18 reader and MicroPython.
Not sure of the tag type here, but I guess it is 125KHz tag. More, my card is keeping '29714856'...
1
vote
0
answers
171
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how to give power and ETH to pi pico W at same time?
Learning following project https://github.com/sbcshop/Raspberry-Pi-Pico-RFID-Expansion.
Now the requirement is to connect project with Ethernet network, also provide power supply at same time.
Qustion:...
0
votes
1
answer
651
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how to use a multiple rc522 (RFID) sensors with i2c on a PICO with a Adafruit PCF8575 board
I've been looking through the web for the case of multiple rc522 (RFID sensors) attached to a PICO/W using I2C. Most of the examples and Micropython library code seem to be using SPI. Can someone ...
0
votes
0
answers
96
views
Raspberry pi Touch Screen Display unable to connect other modules due to having to use the same pins
Good day~ I've been working with a project that involves a raspberry ,a display touch screen, RFID reader and GSM module.
However after setting up the display touch screen for raspberry pi, I noticed ...
1
vote
2
answers
2k
views
Raspberry Pi 4 having issues reading from a RFID-RC522
I am following this tutorial to get my raspberry pi set up with an RFID module. Unfortunately, I cannot get it to work.
Specifications
Raspberry pi 4 Model B
Raspbian GNU/Linux 11 (bullseye)
Mifare ...
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