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 →Imagine having different users with different user levels for your system. You can filter them out by adding RFID based access control.
This module uses the PN532 NFC chip, one of the commonly used on modern-day phones that have NFC. It can do reading from and writing to 13.56MHz NFC/RFID cards or tags. It can serve as communication with phones, especially with payment processing. Inversely, it could also work like an NFC tag.
What's good with this module is that you can interface this with your Arduino using different ways, may it be using UART at any baud rate, SPI or I2C. The LIBNFC also supports it so that you can integrate this with your desktop projects using FTDI serial to USB converter.
The package includes headers as well as one RFID card and one RFID keychain tag.
TECHNICAL DETAILS
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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.
read tutorial →Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
view thread →Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →