Adjusting the brightness of an LED light

Intention

The intention behind this project was to create an LED light that's brightness can be controlled with a knob. This way if someone wants to dim the lights on their LED light they can.

Process

The process included adding a LED light and a rotating knob on a breadboard. I made sure to add in the code the highest brightness that the LED can go and make it dim to almost not light. There were a lot of changes I had to make like reducing the size of my button and also seeing what dimmer would fit and also the type of LED light to use.

Short video with me demonstrating one dimming and undimming the LED lights.

Reflection

In this process I learned the basic skills to build a functioning LED light and I learned how to write basic functions in code. I realized how much a lowercase or even a semicolon can change the whole code not allowing the code to work properly.
I feel like if I had more time I could create a small desk lamp that allows one to rotate a dial for the user's ideal light brightness.

//Set Up Variable 
int ledPin = D2;
//bool status = LOW;                                                     //control with phone 
int buttonPin = D3;

int buttonState; //store the reading from the button

int potPin = A5;
int potReading = 0;

void setup() {

    pinMode( ledPin, OUTPUT );
    
    pinMode( buttonPin, INPUT_PULLUP );
    
    Particle.variable("dial", potReading);
    
//    pinMode( potPin, INPUT );
    
  //  Particle.function( "controllight", handleControllight );
  // analog pins are by default inputs (no need to configure them.)
    
}

void loop() {
    
    buttonState = digitalRead( buttonPin );
//    int buttonReading = digitalRead( buttonPin );
    
    potReading = analogRead( potReading );
    
    //AnalogRead = value from 0-4095
//    potReading = analogRead( potPin );
    
//    int ledBrightness = map( potReading, 0, 4095, 0, 255 );
    
//    analogWrite( ledPin, ledBrightness );
    
//    buttonState = digitalRead( buttonPin );
    
    if( buttonReading == LOW )
    {
        
//        int ledBrightness = map( potReading, 0, 4095, 0, 255 );
        
  //      analogWrite( ledPin, ledBrightness );
        
  //     digitalWrite( ledPin, HIGH );
 //   }else{
//         digitalWrite( ledPin, HIGH );
//    }else{
  // delay( 2000 );
    
         digitalWrite( ledPin, LOW );
    }else{
        
        int ledBrightness = map(potReading,0, 4095, 0, 255);
        
        analogWrite(ledPin, ledBrightness);
    }
  // delay( 2000 );
//    }
  //  digitalWrite( led, status );
       delay( 500 );
    
    // repeat and repeat ..etc
}

//   int handleControllight( String command ){

//    if( command.equals( "on" ) ){
//        status = HIGH;
  //      digitalWrite( led, HIGH );
    //     delay( 200 );
     //     digitalWrite( led, LOW );
      //    delay( 200 );
    //       digitalWrite( led, HIGH );
     //    delay( 200 );
      //    digitalWrite( led, LOW );
    //      delay( 200 );
     //      digitalWrite( led, HIGH );
    //     delay( 200 );
    //      digitalWrite( led, LOW );
    //      delay( 200 );
    //    return 1;
//    }
 
//    if( command.equals( "off" ) ){
 //       status = LOW;
 //       return 0;
//    }
 //   return -1;
//}

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It will let the user to turn a knob allowing the user to control the brightness of the led light