PotentiometerCheck.ino

//Create brightness variable
//Ranging from 0.0-1.0:
//  0.0 is off
//  0.5 is 50%
//  1.0 is fully on
float brightness_LED = 0.7;
float knobValue = 0.0;

//.
//.
//.

//==================== CHECK POTENTIOMETER FOR BRIGHTNESS ====================

void checkKnob() {
  brightness_LED = analogRead(knobPin) / 1023.0; //potentiometer for Brightness
  
  /*divide the knob into sections for brightness
    the analogRead() will start flickering if you have more values
  */
  if (brightness_LED  > 0.1 && brightness_LED  <= 0.25) {
    brightness_LED = 0.1;
  }
  else if (brightness_LED  > 0.25 && brightness_LED  <= 0.4) {
    brightness_LED = 0.3;
  }
  else if (brightness_LED  > 0.4 && brightness_LED  <= 0.6) {
    brightness_LED = 0.5;
  }
  else if (brightness_LED  > 0.6 && brightness_LED  <= 0.8) {
    brightness_LED = 0.7;
  }
  else if (brightness_LED  > 0.8 && brightness_LED  <= 1.0) {
    brightness_LED = 1.0;
  }
  else {//brightness_LED  > 0.0 && brightness_LED  <= 0.1
    brightness_LED = 0.0;
  }

  /*
    #if DEBUG
    Serial.print(" Brightness Value % = ");
    Serial.println(brightness_LED * 100);
    #endif
  */
}

//==================== END CHECK POTENTIOMETER FOR BRIGHTNESS ====================