//Kelompok 6
//Rangkaian I2C Analog output

#include <Wire.h>      

#define LIGHT_SENSOR_PIN 35 
#define LOW_LED 14
#define HIGH_LED 12

#define MCP4725_ADDR 0x60

void setup() {
  Serial.begin(9600);
  pinMode(LOW_LED, OUTPUT);
  digitalWrite(LOW_LED, LOW);
  pinMode(HIGH_LED, OUTPUT);
  digitalWrite(HIGH_LED, LOW);
  
  // Inisialisai I2C untuk MCP4725
  Wire.begin();
}

void loop() {
  // Membaca input pada analog pin (value between 0 and 4095)
  int analogValue = analogRead(LIGHT_SENSOR_PIN);
  Serial.print("Analog Value = ");
  Serial.print(analogValue); // the raw analog reading

  // Mengirim nilai ke MCP4725
  Wire.beginTransmission(MCP4725_ADDR);
  Wire.write((analogValue >> 4) & 0xFF); 
  Wire.write((analogValue & 0x0F) << 4); 
  Wire.endTransmission();

  // Logika untuk mengendalikan LED
  if (analogValue < 400) {
    analogWrite(LOW_LED, 255);
    digitalWrite(HIGH_LED, HIGH);
    Serial.println(" => Dark");

  } else if ((analogValue > 400) && (analogValue < 1000)) {
    analogWrite(LOW_LED, 255);
    digitalWrite(HIGH_LED, LOW);
    Serial.println(" => Semi Dark");

  } else if ((analogValue > 1000) && (analogValue < 2000)) {
    analogWrite(LOW_LED, 50);
    digitalWrite(HIGH_LED, LOW);
    Serial.println(" => Light");

  } else if (analogValue > 2000) {
    analogWrite(LOW_LED, 0);
    digitalWrite(HIGH_LED, LOW);
    Serial.println(" => Bright");
  }

  delay(500);
}