RX and TX pins communicating with UART Serial MP3 Player

Hardware Nano Family Classic Nano
1

Hey there,

I'm using an Arduino nano to send serial commands to this UART MP3 Player:

yx5300/Serial MP3 Player v1.0 Manual.pdf at master · 0xcafed00d/yx5300 · GitHub

It communicates via TX and RX, but every code I see uses other pins, such as 6 and 7, as TX and RX. Why is that? Can you not use the pins labelled TX and RX to send commands?

2

Yes, you can use TX and RX. The 'problem' is that in that case you loose the communication over USB with a PC for upload and debugging.

3

Thank you very much!

4

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