HiLetgo PN532 NFC NXP RFID Module V3 Kit Near Field Communication Reader Module Kit I2C SPI HSU with S50 White Card Key Card for Arduino Raspberry Pi DIY Smart Phone Android Phone

Bought this as a cheap way to see if an NFC project was feasible, and it works using both the included tags and some NTAG213 stickers found elsewhere on amazon. I soldered in one of the included 4-pin headers, and then used that to connect an FTDI TTL-232R-5V usb-to-ttl-serial cable. It then comes right up and works with libnfc and the libnfc examples, after putting the proper serial port into /etc/nfc/libnfc.conf . I'll be ordering a few more.Two little things that didn't bother me: only has a 4-pin connector, so I had to put a custom matching 4 pin connector onto the FTDI cable. If this had a compatible 6-pin connector, I could have used an unmodified FTDI cable or other usb-ttl-serial adapter with the common 6 pin header. The set of three wires were not included in my package.

The media could not be loaded. This review is for HiLetgo PN532 RFID Module.The package comes with 2 RFID cards (1 card and 1 key fob style) and the module itself. The module claims it can support 3 kinds (HSV, I2C and SPI) of connection. Most of the time, I would choose I2C as it has less wires to connect. But this is not the case here. The first reason was that in order to use I2C, you need to connect RST0 and IRQ pins (Based on the Adafruit library). Also, although the library can support both I2C and SPI, I could not find the initialize routine can pass in any I2C address. I might have missed something. Anyhow, given all these, I end up used SPI as my wiring between Arduino and the board which turns out working really well. Another good thing about SPI is that the library supports SW SPI, so I can choose whatever digital pins that I want. I used pin 2 to pin 5 as the example sketch suggested.For my testing, I used my Arduino UNO and open one of the example sketches provided by Adafruit. I had no problem reading the card. I am happy with the result. I would recommend this board for anyone who would like to learn more about 13.56Mhz type of RFID and how to use Arduino to control it.

Please please please make sure you double check that this is exactly what you need and that it is compatible with whatever you intended purpose is. The products works perfect as described, but you can run into issues if you are unsure what radio frequencies you are trying to interact with and with what medium (rasp pi, arduino) you are trying to connect it with. I was using a raspberry pi 3B+ and ran into compatibility issues, so please review any documentation for projects out there to make sure this will work for you.

Spent some time with the device and have been reading many troubleshooting guides for this guide. Regardless of mode, it doesn't show up. Even after editing the Pi config file to allow all the connection types, it did not work. No usage guide was provided with the guide either.SPI: Did not workUART: Did not workI2C: No sign of lifeIt's just good for a red LED, I guess.

I bought a PN532, expecting it to work right after soldering. I've seen videos of what this chip can do; it *should* have a tolerance of 5cm to read from, and should be able to read 14443 ISO tags as well as Mifare classics. And it does! At least, when you get the board to connect and STAY CONNECTED. After about four dozen attempts of rewiring, trying different wires and testing the board (and my Arduino) for issues, all I got was a brief connection to the PN532 before it sputtered out and died on me. I even attempted to resolder the board connectors (which turned out to be a bad idea), and ended up with what is now a defunct board, despite the board looking perfectly fine.EDIT: It turns out that the board was fine; rather, the Arduino I was working with had faulty data pins. Works just as advertised. Great board.

Worked great with my Arduino Pro Mini using I2C (ILO SPI to minimize the connections). You'll need to install a few libraries to get it working. The first one is referred to as Don's NDEF library. Then second is PN532 library (I used Seeed-Studio's version), both of which you can find on GitHub. The PN532 is actually a bundle of 4 libraries: PN532, PN532_HSU, PN532_I2C and PN532_SPI. You only need 2, the main PN532.h and either the I2C or SPI depending on how you connect it. The HSU is for high speed communication, which you probably won't need. The NDEF library comes with several great example sketches that should get you going right away.I just used this as a tag reader, then installed NFC Tools on my Android phone to write the data.

I REALLY wanted to use these instead of the older chipset for my projects, the I2C interface alone seemed worth it. But I just can't rely on them. They seem to go into some kind of sleep mode where they no longer listen for a card. I have even hard-wired the reset pin and toggle it every 60 seconds, but they still miss 1 in 5 reads after 20 seconds or so. :|

wired it up to a raspberry pi and installed piimibo to make tags.