This lesson is a brief introduction to incorporating an RFID tag into your Raspberry Pi Pico W project. We will be using the RFID-RC522 module, and will show to how to both read and write RFID tags.

The schematic shows how to connect the RFID module to your Pi Pico project.

The schematic above includes the breadvolt power supply, which we will use later as the project advances in future lessons. Notice carefully the top jumpers on the breadvolt set to 5 Volts, and the lower jumpers are set as 3.3 volts.

This is an alternative view of the same schematic, showing the pin labels on the RFID module. Both these schematics are the same, you can use the one you find easiest.

As the project progresses, we will also add two pushbuttons and an RGB LED to the circuit. This is the schematic, which we will use in lesson 121.