PN532 NFC RFID Module Tutorial | Interfacing PN532 with Arduino in UART, I2C & SPI Mode

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𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
This is the NFC Module from NXP Semiconductor called PN532. NFC or Near Field Communication is a technology standard based on Radio Frequency Identification, transmitting information wirelessly over short distances. The key distinction between RFID and NFC lies in their transmission ranges. The RFID is often used over longer distances. NFC, however, only has a maximum range of a few centimeters, at most. NFC devices can act as either a reader or tag.
In this tutorial, we will be interfacing PN532 NFC RFID Module with Arduino. Earlier we used the RC522 module which is certainly the best-known RFID module for the Arduino projects. But the PN532 NFC reader has certain advantages over RC522, particularly in terms of communication options. Here, we will see how to use PN532 NFC RFID Module with Arduino according to the different communication methods UART, SPI & I2C. Later we will display the UID numbers of the NFC card on a 0.96″ OLED Display. So let's begin.
𝗦𝗼𝘂𝗿𝗰𝗲 𝗖𝗼𝗱𝗲 & 𝗟𝗶𝗻𝗸: how2electronics.com/interfaci...
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[@dibyojyotibhattacherjee897]

Hello, if u do a series on pcb design, it would be really helpful.

[@anggaamalulahli9413]

Why is it that when communicating using SPI, only one pin is declared? What are the other pins used for if not declared?

[@DonLaplace4130]

Can you connect more than one module NFC to an Arduino?

[@electronic7979]

Super

[@krzakowy4415]

I use I2C, doesn't detect white cards, only keychain and pizzeria card, why?

[@justsayjay]

Could you use this as a simple on/off switch for a project? Like to turn on a whole device only with an rfid tag? No read / write info. Just to turn on and off a thing?

[@histon]

yeah if you keep a microcontroller running constantly searching for tags, on battery power or powered from your main power rail, then use that microcontroller to switch a relay or something to turn your main device on/off. then in the code you don't check for a specific ID, just if there is a tag detected at all then you switch the relay.

[@liswifi]

Your code is for the ATMega processor, but you're running a Nano. Doesn't that use the nRF processor instead?

[@Gamespeare18]

nano? 33?

[@flaviocunha7576]

Isn't this module 3.3 Volts?

[@rochdimaria]

Can it read smartphone nfc ?

[@SS-Ak47]

Afaik the chip can do that but I'm not sure if the library supports it

[@irawanie8635]

the libraries used here is not supported by arduino ide (2.0.3) anymore.
upgrade is needed.

[@HowtoElectronics]

Downgrade the arduino IDE to earlier version.

[@practi-herramientasdesoftw3208]

4:42 5v ? is 3.3v

[@somenathsamanta_8743]

PN532_I2C.h no such file or directery this error is hapening

[@heroshimanara5173]

im also getting this error, if u found the solution please share it with me

[@Luca_040]

you forgot SPI mode

[@SS-Ak47]

Doesn't work

[@ismartalluarjun]

Please make
Mit app inventor android app
Make video
Nfc and RFID all the best thing

[@IbnuHallaz]

nfc.getFirmwareVersion(); return 0 Didn't Find PN53x Module
How I can fix it?

[@HowtoElectronics]

Check your connection.