int pinoLED = 3;
int pinoPot = A0;
int pinoShunt = A1;

void setup() {
  pinMode(pinoLED, OUTPUT);
  pinMode(pinoPot, INPUT);
  pinMode(pinoShunt, INPUT);
  Serial.begin(9600);
}

void loop() {
  int Pot = analogRead(pinoPot);
  float Vpot = Pot/1023.0*5.0;
  int pwm = map(Pot, 0, 1023, 0, 255);
  analogWrite(pinoLED, pwm);
  int shunt = analogRead(pinoShunt);
  float Vr = shunt/1023.0*5.0;
  float ILED = Vr/1.0e3;
  Serial.print(Vpot); Serial.print("  ");
  Serial.print(Vr); Serial.print("  ");
  Serial.println(ILED);
  delay(10);
}