Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →The PN532 NFC RFID V3 Module is a 13.56MHz reader and writer module for NFC and RFID projects. It can be used with Arduino, Raspberry Pi, ESP32, and other microcontroller boards that support I2C, SPI, or UART.
This module is useful for RFID card reading, NFC tag testing, access control, attendance systems, smart lock demos, payment-style project tests, and phone-to-module NFC experiments.
Note: RFID cards, NFC tags, headers, wires, and other accessories are not included unless stated in the actual package.
| Product Type | NFC RFID reader/writer module |
|---|---|
| Main Chip | PN532 |
| Working Frequency | 13.56MHz |
| Communication Interface | I2C, SPI, and HSU UART |
| Reading Distance | About 4cm to 6cm, depending on card or tag type |
| Antenna | Built-in PCB antenna |
| Logic Level | 5V TTL for I2C and UART, 3.3V TTL for SPI |
| Supported Cards | MIFARE 1K, MIFARE 4K, Ultralight, DesFire, ISO/IEC 14443-4, Jewel, and FeliCa cards |
| Working Modes | RFID reader/writer, NFC mode, virtual card, and peer-to-peer communication |
| Compatible Boards | Arduino, Raspberry Pi, ESP32, and similar microcontroller boards |
| Best For | NFC projects, RFID systems, access control, attendance, and smart card testing |
Select the correct communication mode before wiring the module. Use I2C, SPI, or HSU UART based on your board, code, and library.
Place the RFID card or NFC tag near the antenna area. The actual reading distance may change based on the card type, tag size, antenna design, and project setup.
It is used for reading and writing supported 13.56MHz RFID cards and NFC tags.
Yes. The PN532 module is commonly used with Arduino-compatible boards.
It supports I2C, SPI, and HSU UART communication.
Yes. It supports MIFARE 1K, MIFARE 4K, Ultralight, and DesFire cards.
RFID cards and NFC tags are not included unless stated in the package.
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One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
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read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
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