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Questions tagged [pn532]

46 questions
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NFC - Android device can't read Type 4 NDEF tag content emulated from ACR122U (PN532)

I'm writing C# application to emulate NFC tag via ACR122U, which uses PN532 internally. I want Android to read simple URI NDEF Tag. I'm able to communicate with Android using NFC Forum Type 4 Tag protocol, Android detects the tag, but is not able…
Jerzy Stanislawski
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Get UID from NFC Card on ESP32

I am having a bit of trouble reading an NFC card with an ESP32 (using Arduino IDE). I'm using PN532 module, which works pretty well. So far my code looks like: #include #include #include #include…
Andrew Taylor
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Reading NFC UID from android phone with PN532 and ArduinoMega

I am trying to use the PN532 to read my NFC UID from phone(Samsung Galaxy S10), but i receive just 08 and another 3 digits of random values.I read that a value that start with 08 is a RID(Random ID). Is there any possible way to read just a unique…
Mihai
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Can the NXP PN532 work on UART at a 38400 baud rate?

I am trying to integrate an RFID1356MIFARE, which uses NXP PN532, with an ESP32-EVB using their UART capabilities. The NXP docs states that the PN532 is able to communicate on High Speed UART. I am trying to use 38400 because that's the baud rate…
George Florian
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Write URL and Password protection into NFC (Ntag213) Tag using PN532 Arduino

I know how to write URL into NTag213 NFC Tag, but is there any way to write password protection in it? by using phone's NFC tool, we can set the password and write into the NFC tag, but I want to set the password using PN532, is that possible?
Wahsico
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PN532 - tag emulation problem - Java/Raspberry Pi

I've successfully connected PN532 to RPi using SPI. Communication works. I can read a passive tag using IN_LIST_PASSIVE_TARGET. Commands like GET_FIRMWARE_VERSION or SAM_CONFIGURATION work as expected. Now, I'm trying to emulate NDEF tag type 4.…
Oxygen
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Getting how InDataExchange command works

i'm trying to understand how the InDataExchange Command is actually working. I'm using a pn532 component (I send this command to PN532 from a microcontroler). When I'm using the InDataExchange command it seems to work since the status byte returned…
Idash
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Configuring the ACR122U in Card Emulation Mode - MacOS Catalina

I recently purchased the ACR122U from here. I am attempting to place it into Card Emulation mode to have it communicate with a system running a PN7150 in Initiator Mode. I've managed to communicate with the device's PN532 IC (user manual); sending…
Anviori
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Elechouse PN532 return timeout when emulates card

I want to emulate Elechouse PN532 NFC Module V3 as ISO/IEC 1443-4A card. I use Arduino Uno as a development board. I also downloaded their library from Github and run some examples to check if NFC module is working fine (ISO card reading). After I…
Марк Зубрицький
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"Time Out, the target has not answered" from ACR122U reader with Jewel/Topaz512 NFC tags

I am building a Windows/Java program (using javax.smartcardio) to communicate with Jewel/Topaz512 tags (from Innovision/Broadcom) using an ACR122U device (with a PN532 NFC Controller chip inside). I implemented the Topaz512 protocol (from this data…
Marc de Verdelhan
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How can I send a simple String from an Android with React-Native device to a RaspberryPi using EXPLORE-NFC-WW

this is my very first post so please be gentle. I am mostly looking for Information that could lead me to a good library or a document that could help me out with what im trying to achieve. So far I tried using this library that I found on github to…
S_Kalog
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PN532 emulated card not read by an Android phone

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…
Martin Schmied
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Writing/Reading from/to SPI on GPIO Interrupt failed with OSError: [Errno 9] Bad file descriptor

I am running an NFC Reader with an interrupt pin on my Raspberry Pi and I wrote a script to make it running. So far it works quite well but in some cases the SPI xfer crashes with an OSError: [Errno 9] Bad file descriptor The whole SPI part happens…
Informatic0re
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PN532 with Raspberrypi 4B

i'm connected a rpi4B with pn532 through the spi protocol but i have a problem in connection between them and this error message : "RuntimeError : Failed to detect the PN532" i want to read the rfid id but i didn't arrive to do it as the rpi cannot…
Asma
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Trying to use the NFC Shield by Seeed-Studio PN532 library on Arduino

I bought this NFC Shield for my Arduino…
Johann
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