const int LedR = 21;
const int LedG = 19;
const int LedB = 18;

const int potpinR = 34; 
const int potpinG = 35; 
const int potpinB = 32; 


int R, G, B;

void setup() {
  pinMode(LedR, OUTPUT);
  pinMode(LedG, OUTPUT);
  pinMode(LedB, OUTPUT);
  pinMode(potpinR, INPUT);
  pinMode(potpinG, INPUT);
  pinMode(potpinB, INPUT);
  R = readPot(potpinR);
  G = readPot(potpinG);
  B = readPot(potpinB);
}

int readPot(int pin) {
  return map(analogRead(pin), 0, 1023, 0, 255);
}

void loop() {
  analogWrite(LedR, readPot(potpinR));
  analogWrite(LedG, readPot(potpinG));
  analogWrite(LedB, readPot(potpinB));
  delay(1000);
}