V3

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>


LiquidCrystal_I2C lcd(0x27,20,4);
Servo esc;   // Création de l'objet permettant le contrôle de l'ESC



int n = 0;


void setup() {
  lcd.setCursor(0,0);
  lcd.print("Ubat ");

  lcd.setCursor(1,0);
  lcd.print("VMot ");

  esc.attach(9);
}



void loop() {

 PWM();
 n++;

    if (n = 10 ){   //vitesse  de rafraichissement +grand -> - vite
        amp();     //affichage
        volt();
        vit();
        PWMA();

        n = 0;
 }

}
float PWM()
{
  float PWM = analogRead(A1);

    PWM = map(PWM, 0, 1024, 0, 179);
    esc.write(PWM);


  }

float PWMA()
{
  float PWMA = 0.0;
      PWMA = map(PWM, 0, 178, 0,100);
         lcd.setCursor(1,5);
         lcd.print(PWMA);

  }
float amp()
{
  float amp = analogRead(A3);
    map(amp,0,1024,0,100);

    return amp;
  }

float volt()
{
  float R1 = 997000.0;                                       // valeur resistance
  float R2 = 98500.0;
  float vout = 0.0;
  float vin = 0.0;

     float value = analogRead(A0);

     vout = (value * 5.0) / 1024.0;
     vin = vout / (R2/(R1+R2));
     vin = vin * 10;
     vin = map(vin, 210, 294 , 0, 100);
     vin = constrain(vin,0,100);
        lcd.setCursor(0,5);
        lcd.print(vin);

        return vin;
  }
float vit()
{
    float perimetre = 1.25;                         // perimetre position aimant
      int PIN_SIGNAL = 2;                           //pin inchangeable
         int periode = pulseIn(PIN_SIGNAL, HIGH, 10000000);
         periode = perimetre / periode ;

            return periode;

  }


  // https://hobbyking.com/fr_fr/turnigy-dlux-60a-mk2-brushless-speed-controller-w-8a-s-bec-and-data-logging-2s-8s.html