also in the world of Arduino, and I have a question of who can help me to be very thankful. The question is, how can I perform a serial value for work in Arduino? For example, changing the engine.
I will be grateful for any help you can offer,
Your question does not make much sense.
Would it be better if you could ask the question in your native language ?
how can I perform a serial value for work in Arduino? For example, changing the engine.
Does that mean that you want to enter a number in the serial monitor to control the speed of a DC motor using PWM or a stepper motor?
Have a look at the examples in Serial Input Basics - simple reliable ways to receive data.
...R