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Problems with rfid-rc522 and the Raspberry Pi 3 Model B v1.2 #1661
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I have recreated your setup (I have exactly the same module) by ignoring my instructions and following your wiring, and it works for me. A few things to note:
You don't mention your power supply - make sure it is at least capable of delivering 2.5A. |
we have did 2) and 3), but its still not working :-(
The power comes over usb (to the raspberry). And the usb is connected to a power socket (and not to a pc). Is there more we have to be aware of? |
My comment was submitted prematurely - it now says:
You can see if power has been an issue by running Do you have another RFID module to try? If you really want to understand what is going wrong I can recommend hooking a logic analyser up to the pins (I have a Saleae Logic Pro16 which includes an SPI protocol decoder) and looking for activity. |
Closing due to lack of activity. Reopen if you feel this issue is still relevant. |
Hi, Same issue. Any solves? |
I have a similar issue, It will only read cards after starting the file twice |
If you follow my guide (#2613) it should work. |
We are trying to scan RFID-Chips with rfid-rc522 and the Raspberry Pi 3 Model B v1.2, but it does not work for us.
We did it exactly like described here.
dmesg.txt
Nothing happens.. We have tested several different RFID chips..
PS: We have added "dtoverlay=spi0-hw-cs” to /boot/config.txt
Its still not working :-(
The Wire:
(The wire pairs have the same color - just the purple one is connected to the white one on the other side.)
Answer from: @pelwell
hi @pelwell, thank you very much for your answer! does this help?
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