Guys. Help please

Projects Programming
7

There are some basic issues with the code:

  1. variables: value and a are not defined.
  2. analogRead() does not return a floating point value.
  3. you redefine f as an int later in the program. This is never a good idea.
  4. There are missing semicolons and braces ({}) missing.

Guessing at what you're trying to do and supplying the missing braces, I get:

// ?????????? ?????????? ???????:
#include <LiquidCrystal.h>
// ?????????? ?????????? ???????? ?????????:
#include <AccelStepper.h>
// ??????? ????? ???????? ????????? ? ????????? ?????? ???????:
//AccelStepper stepper(AccelStepper::FULL4WIRE, 8, 9, 10, 11);
//AccelStepper stepper2(AccelStepper::FULL4WIRE, 2, 3, 4, 5);
// ?????????? EEPROM - ?????????? ?????? ?????????:
#include <EEPROM.h>
// ?????????? ?????????????? ???????:
#include "math.h" 
// ????????? ?????????? ? ???????? ?? ? ???????:
float f = 0;
float SWRpad = 0;
float SWRotr = 0;
float SWR = 0;
// ??????????? ???? ??????????:
LiquidCrystal lcd(10, 11, 12, 13, 14, 15);

void setup ()
{
  analogReference(DEFAULT); // ??????????? ??????? ?????????? 5 ?.
  lcd.begin(16, 2); // ?????? ??????????? ??????, 2 ?????? ?? 16 ????????.
  // ???????????? ???????? ???????? ????????? ? ???????? ? ?????? (RPM).
  //stepper.setMaxSpeed(300.0);
  //stepper.setAcceleration(100.0);
  //stepper.moveTo(1000000);

  //stepper2.setMaxSpeed(300.0);
  //stepper2.setAcceleration(100.0);
  //stepper2.moveTo(1000000); 
  // ????????? ???????? ?????? ? ??????:
  Serial.begin(9600);
}
void loop ()
{
  byte value = EEPROM.read(a);
  f = analogRead(A0); // ?????? ??????? ???????.
  SWRpad = analogRead(A2);  // ?????? ?????????? ???????? ?????.
  SWRotr = analogRead(A1);  // ?????? ?????????? ?????????? ?????.
  // ?????? ? ????? ???:
  SWR = (SWRpad + SWRotr)/(SWRpad - SWRotr);
  // ?????????? ????? ???? ? ???????? SWR - ??????????, ??? ????????? ???????, ???? ????? ???????? ?????, ?? ?????????? ????? ? ????? ????.
  // ????? ??????? ??????? ???????? ??????.
  lcd.setCursor(0, 0);
  lcd.print("SWR");
  if (SWR < 1.3) {
    lcd.setCursor(4, 0);
    lcd.print("<1.3");  
  } 
  else {
    if (SWR > 3) {
      // Read new position
      byte f = analogRead(A0);
      stepper.moveTo(f);
      stepper.setSpeed(100);
      stepper.runSpeedToPosition();
    }
    if (SWR < 1.3) {
      lcd.setCursor(4, 0);
      lcd.print(SWR);
    }
    delay(1000);
  }

  // ???????? ? ??????? ??????:
  delay (100);
  lcd.clear(); 
}

which still won't compile because of missing data, but at least it's more readable.