serial port library

[Stas]

I confused a little about serial port library example. Can I consider this like software uart example similar to arduino softwareserial library?

[Sigurd]

Hi,

The SoftwareSerial library in Arduino implements UART in software("bit banging"). It has several known limitations, e.g. if using multiple software serial ports, only one can receive data at a time.

The Serial port library in the SDK is designed as a more sophisticated replacement for the app_uart module, with Multi-instance capability, configurable buffers and more robust and generic API. It does not implement any “software” UART. The Multi-instance capability in the serial port library is very useful in e.g. the nRF52840 where you have 2 hardware UARTE instances.

[Jakub Rzeszutko]

You can have maximum 2 instatnces, so biderctional communication is possible with 2 chips only.