This project uses RFID to log in or out of a Windows PC using Arduino Pro Micro and MFRC522 module.

Arduino micro with RFID unlock your computer. Set one or many RFID tag, and unlock your computer with your personal password.

Store your password in a little, Arduino-based digital wallet. Easily log into your favourite social accounts.

This lesson aims to show how to make a very simple Lego Power Function Receiver.