#include "Particle.h"
int ledPin = D1;
    int switchPin = D3;
    int photoCellPin = A0;
int photoCellReading = 0;
int ledBrightness = 0;
// Let Device OS manage the connection to the Particle Cloud
SYSTEM_MODE(AUTOMATIC);

// Show system, cloud connectivity, and application logs over USB
// View logs with CLI using 'particle serial monitor --follow'
SerialLogHandler logHandler(LOG_LEVEL_INFO);

// setup() runs once, when the device is first turned on
void setup() {
       pinMode( switchPin , INPUT_PULLUP);
       pinMode( ledPin , OUTPUT );
       pinMode(ledPin, OUTPUT);
    Particle.variable("light", &photoCellReading, INT);
  // Put initialization like pinMode and begin functions here
}

void loop() {
    
    photoCellReading = analogRead(photoCellPin);
    ledBrightness = map(photoCellReading, 2700, 4095, 0, 255);
    analogWrite(ledPin, ledBrightness);
    delay(100);
    
    int buttonState = digitalRead( switchPin );
    
   if( buttonState == LOW );
{
    // turn the LED On
    digitalWrite(ledPin, HIGH);
  
  }else{
  
      digitalWrite(ledPin, LOW);
  }