#define potenM A1

// Global variables
int pin1 = 11;


void setup() {
  // put your setup code here, to run once:
  pinMode(pin1, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int potentiometerValue = analogRead(potenM);
  int brightness = potentiometerValue/4;
  analogWrite(pin1, brightness);
}