Access digital port D12

[roman_arduino]

Hi! Tell me how to read the PB4 port bit, for example, on an arduino nano using the C language? I looked at different forms, I can not figure out how to do it. I tried digitalRead, it worked. And there are other ways to read a port bit without digitalRead? I want to make the program as fast as possible.

[LarryD]

@roman_arduino

I want to make the program as fast as possible.

Why ?

[UKHeliBob]

Arduino - PortManipulation | Arduino Documentation

[red_car]

@roman_arduino

I want to make the program as fast as possible.

How fast?

[paulpaulson]

@roman_arduino

I want to make the program as fast as possible.

Code your project in assembler, it doesn't get any faster than that.

[roman_arduino]

@paulpaulson

Code your project in assembler, it doesn't get any faster than that.

Thanks, I'll try programming in C for now, but your suggestion is interesting.

[roman_arduino]

@red_car

How fast?

As far as the arduino with the microcontroller allows.

[roman_arduino]

@LarryD

Why ?

I'm interested to know