Software serial in Arduino Nano 33 Iot

Hi, why softwareserial.h can't upload to arduino nano 33 iot? How can I fix this problem? Thank youu

SoftwareSerial uses ports that are not available on the Nano 33 IOT but why do you want to use it anyway ?

See Using additional serial ports and the page it links to

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I am working on a project that uses MP3 DFPlayer Mini. Most of the code for DFPlayer needs the softwareserial.h library.

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Just change the code to use Serial1 instead of a SoftwareSerial object and connect the DFPlayer to pins 0 and 1 of the Nano 33 IOT

You may also need to take into account that the Nano 33 IOT is a 3.3V device but I am not familiar with the DFPlayer to be certain

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Can I add another Serial? and How? 'cause I also used 2 hc-05 bluetooth modules to pair.

Yes, follow the link in post #2.

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Thank youu both.

Your topic has been moved to the dedicated Nano 33 IOT section of the forum.

Hi, I'm doing the same kind of thing you are. Did your Serial coms setup work?

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