Simple program to output RFID tag's UUID as keyboard output. 🔮
1) Set up the circuit so as the schematic shows.
If you are using Arduino Pro Micro 3.3v version, you don't need to use the three 1k ohms resistors to make the Voltage Divider circuit. This is just needed because the MFRC22 takes 3.3v as input voltage.
Use wisely. :squirrel: