789

789 Datasheet


PRODUCT ID 789

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789 789 789 (pdf)
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Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras

PRODUCT ID 789
9/25/2014

We've taken our popular Adafruit PN532 breakout board and turned it into a shield - the perfect tool for any 13.56MHz RFID or NFC application. The Adafruit NFC shield uses the PN532 chip-set the most popular NFC chip on the market and is what is embedded in pretty much every phone or device that does NFC. This chipset is very powerful, and can pretty much do it all, such as read and write to tags and cards, communicate with phones say for payment processing , and 'act' like a NFC tag. While the controller has many capabilities, our Arduino library currently only supports reading/writing tags, and does not support phone-to-shield communication, tag emulation which requires an external 'secure element' only available from NXP or other more advanced features at this time.

NFC Near Field Communications is a way for two devices very close to each other to communicate. Sort of like a very short range bluetooth that doesn't require authentication. It is an extension of RFID, so anything you can do with RFID you can do with NFC.

Because it can read and write tags, you can always just use this for RFID-tag projects. We carry a few different tags that work great with this chip. It can also work with any other NFC/RFID Type 1 thru 4 tag and of course all the other NXP MiFare type tags

The Adafruit shield was designed by RF engineers using the best test equipment to create a layout and antenna with 10cm 4 inch range, the maximum range possible using the 13.56MHz technology. You can easily attach the shield behind a plastic plate with standoffs and still read cards through a non-metal barrier.

This shield is designed to use I2C or SPI communication protocols. I2C is the default, as it uses fewer pins analog 4 and 5 are used for I2C of course you can still connect other I2C devices to the bus . Digital #2 is used for "interrupt" notification. This means you don't have to sit there and 'poll' the chip to ask if a target tag has been found, the pin will pull low when a card, phone, etc is within range. You can adjust which pin is used if you need to keep digital #2 for something else. It is also easy to change the shield over to SPI where you can use any 4 digital pins by shorting two solder jumpers on the top of the PCB. Compatible with any "classic" Arduino - NG, Diecimilla, Duemilanove, UNO - as well as Mega R3 or later. For using the I2C interface with Mega R2 or earlier, two wires must be soldered as the I2C pins are in a different location on earlier Megas.

Comes with the Adafruit NFC/RFID PN532 shield including a tuned 13.56MHz stripline antenna, 36-pin header for attaching the shield to an Arduino. If you want to stack another shield on top or below, check out our stacking headers that allow pass-through stacking. We also toss in a Mifare Classic 1K card! You can get more tags from us here
9/25/2014

Check out our RFID/NFC project page for documentation, libraries, and other support
9/25/2014
More datasheets: B43698B5156Q | B43698B5106Q | B43698A5685Q7 | B43698A5156Q9 | B43698A5106Q9 | B43698A5685Q9 | B43698A5106Q7 | B43698A5226Q7 | B43698A5156Q7 | B43698A5336Q7


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Datasheet ID: 789 514722