MFRC522-python
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mxgxw
Code not working with Raspberry pi model B+
I would like to note that this code did not worked with the model B+ when executing (sudo python Read.py) I just got the following message:
Welcome to the MFRC522 data read example Press Ctrl-C to stop.
when I touch the tag nothing happens. Is there any diagnostic steps that I can follow to discover where is the bug?
First check wires:
| Name | Pin # | Pin name |
|---|---|---|
| SDA | 24 | GPIO8 |
| SCK | 23 | GPIO11 |
| MOSI | 19 | GPIO10 |
| MISO | 21 | GPIO9 |
| IRQ | None | None |
| GND | Any | Any Ground |
| RST | 22 | GPIO25 |
| 3.3V | 1 | 3V3 |
If this is correct go to any tutorial and follow steps to install python-dev, enable SPI and change other settings on raspberry. If you are still stuck try to take fresh image and go by this tutorial; http://www.instructables.com/id/Raspberry-Pi-3-Model-B-MIFARE-RC522-RFID-Tag-Readi/
Similar problem. All wires are correct.
$ lsmod | grep spi
spidev 7373 4
spi_bcm2835 7596 0
Similar problem. Board D1 indicator light,No response when approaching the card.
pi@raspberrypi:~/Dev/MFRC522-python $ lsmod | grep spi
spidev 16384 0
spi_bcm2835 16384 0
pi@raspberrypi:~/Dev/MFRC522-python $ sudo apt-get install python2.7-dev
正在读取软件包列表... 完成
正在分析软件包的依赖关系树
正在读取状态信息... 完成
python2.7-dev 已经是最新版 (2.7.13-2+deb9u2)。
python2.7-dev 已设置为手动安装。
升级了 0 个软件包，新安装了 0 个软件包，要卸载 0 个软件包，有 1 个软件包未被升级。
I've got the same issues as the above - same reading as dingdayu. Followed the directions at http://www.instructables.com/id/Raspberry-Pi-3-Model-B-MIFARE-RC522-RFID-Tag-Readi/ No errors or anything - just doesn't read.
I've actually got two Raspberry pi's with the same problem. One a model B V1.2 (in black case in photos 1 and 2) and one a B+ 2017 (in clear case photos 3 and 4). They are wired identically and using the same colour scheme - I can't see any problem with the wiring and I've tried replacing the wires.
$ lsmod | grep spi spidev 16384 0 spi_bcm2835 16384 0
Its powering up alright. I'm getting the following:
$ ls /dev/spi* /dev/spidev0.0 /dev/spidev0.1
The config.txt is showing:
dtparam=spi=on
When I run lsmod I see:
$ lsmod Module Size Used by fuse 110592 3 rfcomm 49152 4 bnep 20480 2 hci_uart 36864 1 btbcm 16384 1 hci_uart serdev 20480 1 hci_uart bluetooth 368640 29 hci_uart,bnep,btbcm,rfcomm ecdh_generic 28672 1 bluetooth brcmfmac 307200 0 brcmutil 16384 1 brcmfmac cfg80211 573440 1 brcmfmac spidev 16384 0 rfkill 28672 6 bluetooth,cfg80211 snd_bcm2835 32768 1 snd_pcm 98304 1 snd_bcm2835 snd_timer 32768 1 snd_pcm snd 69632 5 snd_timer,snd_bcm2835,snd_pcm spi_bcm2835 16384 0 fixed 16384 0 uio_pdrv_genirq 16384 0 uio 20480 1 uio_pdrv_genirq evdev 24576 6 i2c_dev 16384 0 ip_tables 24576 0 x_tables 32768 1 ip_tables ipv6 434176 22
I'm at my wits end trying to get this to work now for an office access card system. Can I please have help?
Sorry should also add to the above that I've also tried two different RC522's. Currently got one hooked up to each pi but both having the same problem described at top of thread. All seems installed fine but not actually reading.
Im not an expert, but the tutorial I followed suggested, that you have to enable bcm2708 instead of bcm 2835. I did that by adding the following line to the end of /boot/config.txt
dtoverlay=spi-bcm2708
Maybe you can try this, I hope this helps!
Thought that just related to the silicone of the chip itself which is different in the pi 3B. Since I'm out of ideas I gave it a go anyway though and still not working. Thanks for helping though.
Well I bought a Raspberry Pi 3B+ two weeks ago and got it working following this git https://github.com/mxgxw/MFRC522-python So I'm not sure if your problem has something to do with it being a newer Pi
Edit: Nevermind, you're actually using the same library and did the same to implement it.
Same as the initial post unfortunately:
Welcome to the MFRC522 data read example Press Ctrl-C to stop.
when I touch the tag nothing happens.
I did have the same problem with the 3B (two pi's tried and 2 different RFID readers)
Would you possibly be able to post the read outs similar to the above you are getting with a working version please? Maybe I can work it out from there.
Have you tried debugging or putting prints in the MFRC library, to see exactly which step, seems to be not working?
Didn't hit any problems along the way when installing. Just didn't work at the end.
Would you possibly be able to post the read outs similar to the above you are getting with a working version please? Maybe I can work it out from there.
Im not sure that I understand what you want from me, but this is the output I get (when it's working)
pi@raspberrypi:~/MFRC522-python $ sudo python Read.py Welcome to the MFRC522 data read example Press Ctrl-C to stop. Card detected Card read UID: 69,245,238,117 Size: 8 Sector 8 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
and confirm that you are using the Stretch Version: 2.8.2 Release date: 2018-06-27
my lsmod output
pi@raspberrypi:~ $ lsmod Module Size Used by rfcomm 49152 6 bnep 20480 2 hci_uart 36864 1 btbcm 16384 1 hci_uart serdev 20480 1 hci_uart bluetooth 368640 29 hci_uart,bnep,btbcm,rfcomm ecdh_generic 28672 1 bluetooth fuse 106496 3 binfmt_misc 20480 1 evdev 24576 6 joydev 20480 0 spidev 16384 0 brcmfmac 307200 0 brcmutil 16384 1 brcmfmac cfg80211 573440 1 brcmfmac rfkill 28672 6 bluetooth,cfg80211 snd_bcm2835 32768 1 snd_pcm 98304 1 snd_bcm2835 snd_timer 32768 1 snd_pcm snd 69632 5 snd_timer,snd_bcm2835,snd_pcm spi_bcm2835 16384 0 uio_pdrv_genirq 16384 0 fixed 16384 0 uio 20480 1 uio_pdrv_genirq i2c_dev 16384 0 ip_tables 24576 0 x_tables 32768 1 ip_tables ipv6 434176 22 how do i lookup the version?
If you bought it two weeks ago and downloaded the latest image rather than an old one it’ll be that
Only lines I can see that differ are: fuse 110592 3 fuse 106496 3 rfcomm 49152 4 rfcomm 49152 6 ...then you have the following that I don't at all: binfmt_misc 20480 1 joydev 20480 0
Unfortunately I lack the skills to know any more about why yours works and mine doesn't.
What type of RFID tags do you have?
I noticed that MIFARE DESfire EV1 dont work, but EV2 do work
Edit: You can check which ones you exactly have with an android app (NXP Tag Info for example) if your smart phone has NFC
I appreaciate the help anyway. Seems unlikely to be hardware problems on two different pi's with two different RC522's.
I am also facing the same problem with raspberry pi B+...When RFID tag says it works at 13.56Mhz, do we need to configure this frequency in the code, bcoz the spi speed is set to 1Mhz? i tried but it didn't work, any other ideas to make it work
Hello, has anyone been able to solve this? I am having the exact same issue. I installed successfully but i cant make it read :/
Hello, In my case, the problem was the RFID board itself. I just used another one from another seller and it worked fine
Le jeu. 23 mai 2019 à 10:45, Erjona1 [email protected] a écrit :
Hello, has anyone been able to solve this? I am having the exact same issue. I installed successfully but i cant make it read :/
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I was facing the same problem with MFRC522 and i just solve it connecting the RC522 IRQ pin into PIN 18 of GPIO
