If you're using an Arduino Nano and trying to use multiple Software Serial ports in a project, the process isn't as straightforward as with other boards. However, by following these steps you should have no problem getting it working!
Download the SoftwareSerial library from this page: https://www.arduino.cc/en/Reference/SoftwareSerial
Add the library to your Arduino IDE.
Edit the “SoftwareSerial.h” file and add a new SoftwareSerial object like this:
SoftwareSerial mySerial2(4,5);
- In your sketch, you’ll need to declare the new serial port like this:
SoftwareSerial mySerial2 (4,5);
- In the setup() function of your sketch, you’ll need to include a new begin() method like this:
mySerial2.begin(9600);
- And that should do it! Once these steps are completed, you should be able to use multiple software serial ports in your Arduino Nano project.
If you have any further questions regarding how to use multiple software serial in Arduino Nano, feel free to ask.
