What is it?

Introducing the PN532 NFC RFID Raspberry Pi Press-Fit Hat, meticulously designed for the Raspberry Pi form factor. This unique board seamlessly integrates with your Raspberry Pi without disrupting its casing or lid. Thanks to the precisely sized rivets on the header contact pins, the board offers a "press-fit" connection to the Raspberry Pi headers. Simply press it onto the RPI headers, and it will form a snug / tight fit with perfect electrical connection with the RPI headers. This design ensures the hat sits low, allowing for a perfect fit even when the case lid is on. Experience hassle-free integration and maintain the sleek look of your Raspberry Pi setup with this PN532 hat. When integrated with a Raspberry Pi, this device allows the system to read RFID Tags.

Features

• PN532 NFC Chip: At the heart of this RFID Hat lies the PN532 NFC chip, renowned for its compatibility with a variety of NFC tag types, including MIFARE, NFC Forum Type 1 to 4 tags, and more. This chip ensures reliable communication and broadens the scope of potential applications.

• Onboard Antenna: The integrated onboard trace antenna ensures reliable NFC communication even when the lid is on.

• SPI Interface: This RFID Hat is designed to use SPI communication, making it the ideal choice for projects that require high-speed data transfer and reliable connectivity.

To use it, connect it to pins 1 through 23 on the first row of the Raspberry Pi headers, just like the picture above.

This PN532 Raspberry Pi Hat form factor is compatible with:

• Raspberry Pi 1B+
• Raspberry Pi 2B
• Raspberry Pi 3B
• Raspberry Pi 3B+
• Raspberry Pi 4B

For the software side, you can use python open source libraries such as PN532 NFC HAT. This hat was designed to have CS/SS pin on GPIO17 and RST on GPIO22 on the Raspberry Pi. Therefore, when running the example code, remember to change it to the following constructor:

pn532 = PN532_SPI(debug=False, reset=22, cs=17)

Potential Use Cases

• Access Control Systems: Create secure access control systems for buildings, rooms, or devices by implementing NFC-based authentication. Users can gain entry by simply tapping their NFC-enabled cards or smartphones.

• Payment Solutions: Develop custom contactless payment systems suitable for small businesses, events, or vending machines. The PN532 Breakout Board enables you to design secure and efficient payment terminals.

• Inventory and Asset Tracking: Simplify inventory management and asset tracking by attaching NFC tags to items. Raspberry Pi, paired with this breakout board, enables quick identification and cataloging of assets.

This PN532 RFID Hat for Raspberry Pi opens the doors to limitless possibilities in NFC technology. Whether you're a hobbyist, student, or professional developer, this breakout board is an indispensable addition to your toolkit, allowing you to effortlessly integrate NFC functionality into your Raspberry Pi projects via the SPI interface. Explore, innovate, and bring your NFC-enabled projects to life with confidence and ease.