#include <Servo.h>

Servo myservo;

int pos = 0; int port = A0; int valeur = 0; float vin = 0; float imax = 0; void setup() {

Serial.begin(9600);
myservo.attach(9);   

}

void loop()

{ valeur = analogRead(port);

vin = (valeur * 5.0) / 1024.0; 

delay(1000);

for(pos = 0; pos <= 180; pos += 1) 
{                                 
  myservo.write(pos);            
   if (vin > imax) 
     { imax = vin; 
     
     }
delay (1000);

}

Serial.println(imax);

}