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In our project we will provide audio information using mp3 module. To do this, you first need to add a sound file to the wtv020 mp3 module. WTV020 mp3 module audio file can be added here.
Let's make the necessary connections by looking at the circuit diagram above. SPI pins will be different pins if you use a card different from the Uno model because it communicates with RFID SPI communication.
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