What is an 'expression' in C? Understanding the difference from a 'statement' through operators and operands

When learning programming, you often encounter the terms "expression"and "statement" in grammar books and tutorial sites.It is easy to skim over them, but following up on the previous topic of ...

[Arduino Super Introduction #33] Changing Brightness with PWM | Let's Adjust LED Brightness with High-Speed On and Off

In the previous chapter, we stored the current state in a variable and switched the LED operation mode every time the button was pressed.The signals sent to the LED so far have been of two types: HIGH ...