const int ledverde= 9;
int potenziometro=A4;
int valLed;
int valPot;

const int LedGiallo=4;
int valoreLG;

const int LedBianco=3;
int ValoreLB;


void setup() {
  // put your setup code here, to run once:
  pinMode(ledverde, OUTPUT);
pinMode(potenziometro, INPUT);
Serial.begin(9600);


void loop() {
  // put you  valPot=analogRead(potenziometro);
  valPot=analogRead(potenziometro);
  valLed= map(valPot,0,1023,0,255);
  analogWrite(ledverde,valLed);
Serial.println(valPot);

if(valPot>511.5) digitalWrite(LedGiallo, HIGH);
else digitalWrite(LedGiallo, LOW);


  valPot=analogRead(potenziometro);
  valLed= map(valPot,0,255,0,127);
  analogWrite(LedBianco,valLed);




}