NFC_SETUP: Didn't find PN53x board - Lost connection after some minutes / hours

[RedJohn14]

Hello!

I used some ESP32-S and wire everything correct. NFC reader LED is on. But everytime I started the ESP get this error message:

NFC_SETUP: Didn't find PN53x board

Any ideas what my mistake is? What i can do to run this setup correctly :-(

See also my settings:

[meluvalli]

Did you see issue #124?

[RedJohn14]

Did you see issue #124?

Yes I see this post and buy "the not china" version of the nfc board. Now it works but only for some minutes or hours (max 1 hours.) after this time i must restart the esp32 and with a littel bit luck it will work than. So the problem is that the connection to the nfc ist lost but led on nfc board is still on. any ideas?

Thanks!

[rednblkx]

Please try the latest version, I’ve lowered the spi clock speed, It is possible the PN532 cannot remain stable at that speed for some reason. Fake ICs are also unfortunately a thing.