Recieving hexadecimal serial communication

[b707]

@bakhjulspunkan

For context I used the example code found on the arduino website explaining Serial.read()

The incomingByte variable is the byte, that you received via UART.
It is a data, and not the pin or something else.

@bakhjulspunkan

I find it difficult to understand the explanations found under the Serial page

Serial page does contains nothing about the incomingByte. It is not a predefined name or system constant, it just a variable in your code.

I could recommend you to read the Serial Input Basics Tutorial before you going further.