#include "DHTesp.h"
#include <Wire.h>
#include <U8g2lib.h>

U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

#define DHT_PIN 32
#define LDR_PIN 33
#define Soil_Moist 27
#define Pin_Pump 16 

// Karakter LDR
const float GAMMA = 0.7;
const float RL10 = 50;
DHTesp dhtSensor;

// Karakter Soil Moist
int dry = 0;
int wet = 4095;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  u8g2.begin();
  u8g2.clearBuffer();
}

void loop() {
  int analogValue = analogRead(LDR_PIN);
  int Mois1 = analogRead(Soil_Moist);
  digitalWrite(Pin_Pump, HIGH);

  //Intensitas Cahaya
  float voltage = analogValue / 4096. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
 
  //Sensor Temperature dan Kelembapan
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  
  //Sensor Soil Moisture
  int Moist = map (Mois1, wet, dry, 100, 0);
  if (Moist >= 40){
    digitalWrite(Pin_Pump, LOW);
  }

  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("Light Intensity: "+ String(lux) + "lux");
  Serial.println("Soil_Moisture: " + String(Moist));
   // Set font and draw each variable on the display
  u8g2.setFont(u8g2_font_b16_t_japanese3); // Choose a suitable font
  u8g2.clearBuffer();
  // Display temperature
  u8g2.setCursor(9, 16);
  u8g2.print("Temp: ");
  u8g2.print(data.temperature);
  u8g2.print(" C");

  // Display humidity
  u8g2.setCursor(9, 32);
  u8g2.print("Humid: ");
  u8g2.print(data.humidity);
  u8g2.print(" %");

  // Display soil moisture
  u8g2.setCursor(9, 48);
  u8g2.print("Moist: ");
  u8g2.print(Moist);
  u8g2.print(" %");

  // Display lux
  u8g2.setCursor(9, 64);
  u8g2.print("Light: ");
  u8g2.print(lux);
  u8g2.print(" Lux");
  
  u8g2.sendBuffer(); // Transfer internal memory to the display
  delay(2000); // Update every second
  
}