const int ledR=3, ledV=6, ledB=5, potR=A0, potV=A1, potB=A2;

void setup() {
  pinMode(ledR, OUTPUT);
  pinMode(ledV, OUTPUT);
  pinMode(ledB, OUTPUT);
  pinMode(potR, INPUT);
  pinMode(potV, INPUT);
  pinMode(potB, INPUT);
}



void loop() {

  int valpot1 = analogRead(potR),
      valpot2 = analogRead(potV), 
      valpot3 = analogRead(potB);

  int valR= map (valpot1,0,1023,0,255);
  int valV= map (valpot2,0,1023,0,255);
  int valB= map (valpot3,0,1023,0,255);
  
  analogWrite(ledR, valR);
   analogWrite(ledV, valV);
    analogWrite(ledB, valB);


}