RFID-reader on RFC522 module
This module reads 13.56MHz tags id and output it into Arduino port monitor.
1. Components
2. Schematics
3. Firmware
Use arduino IDE to upload arduino nano with the following firmware:
4. How to
Connect your arduino nano to the laptop USB, upload the firmware and open port monitor using Ctlr-Shift-M key combination. Port monitor will show your tag id each time you put it near.