All Questions
9 questions with no upvoted or accepted answers
3
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0
answers
2k
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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 ...
- 31
3
votes
0
answers
513
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 ...
- 39
2
votes
0
answers
474
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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 ...
1
vote
0
answers
315
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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 ...
- 111
1
vote
0
answers
1k
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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 ...
1
vote
0
answers
1k
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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 ...
1
vote
0
answers
4k
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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 ...
0
votes
0
answers
104
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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 ...
- 101
0
votes
0
answers
134
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Using RFID-RC522 with spi on RBpi 3B+
Hello_friends,
I am trying to get a RFID reader working on a Raspberry 3b+
That same setup and codebase used to work well on the older 3b+ model from 2015 (the current one is 2017 edition), but now ...
- 216