Can I use the serial IO on an arduino Nano

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1

I want to attach an arduino nano board to a LS20126 GPS receiver, which uses serial. As far as I can tell the serial out pins on the arduino are attached to a USB chip, does this mean I will be unable to use them to connect to the GPS receiver as well?

thanks

2

does this mean I will be unable to use them to connect to the GPS receiver as well?

That depends on what you mean by "as well". You can't use the serial pins to talk to the GPS AND the PC at the same time. You can talk to either one using the TX/RX pins, but not both.

3

Using the hardware Serial via the pins should be fine as long as the USB is disconnected.

Alternatively, you can use a SoftwareSerial driver to present a logic level serial connection on any other I/O pins you choose.