PN532 emulated card not read by an Android phone
问题 I am using Arduino UNO with elechouse's library and a PN532 module connected through SPI . I am trying to emulate a card using the emulate_tag_ndef example in that library, but when I try to read the emulated card with the NFC Tools app on my Samsung Galaxy S7 , I get an empty serial number and I don't get the Ndef message similarly to this. When I try to change the command array in the library according to the post lower on the linked issue on Github , then the emulated card cannot be