/* monitoring GH Budidaya tomat
kendali atap :
  - Sensor cahaya
  - push button
cara kerja :
saat cahaya (Lux) di atas 50 dan tidak ada hujan maka atap terbuka
selain itu atap tertutup

kendali pompa :
  - sensor DHT22 (kelembapan tanah) pengganti soil moisture
  - saat kelembapan di bawah 49 maka pompa hidup
  - saat kelembapan di atas 50 maka pompa mati

monitoring selain menggunakan Led juga di tampilkan di LCD */

#include <DHTesp.h>
#include <ESP32Servo.h>
#include <WiFi.h>
#include "ThingsBoard.h"
#include <LiquidCrystal_I2C.h>

#define Lpompa 2
#define Latap 12
#define DHT 18
#define Thujan 32
#define LDR 35
int jumlahTekanan;

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

#define TOKEN               "MAmEeGMxkAiM1hplN4Vn"
#define THINGSBOARD_SERVER  "thingsboard.cloud"

#define CURRENT_FIRMWARE_TITLE    "Tugas Akhir iot4-22 Kelompok 1"
#define CURRENT_FIRMWARE_VERSION  "1.0.0"

LiquidCrystal_I2C lcd(0x27, 20, 4);

DHTesp dhtSensor;
Servo atap, pompa ;
WiFiClient espClient;
ThingsBoard tb(espClient);

int status = WL_IDLE_STATUS;
const float GAMMA = 0.7;
const float RL10 = 50;

void InitWiFi()
{
  Serial.println("Connecting to Kebun Tomat WIFI...!");
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {

    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected to Kebun Tomat WIFI");
}

void reconnect() {
  status = WiFi.status();
  if ( status != WL_CONNECTED) {
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    Serial.println("Connected to Kebun Tomat WIFI");
  }
}

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT, DHTesp::DHT22);
  pinMode(Latap, OUTPUT);
  pinMode(Lpompa, OUTPUT);
  pinMode(Thujan, INPUT);
  pinMode(LDR, INPUT);
  pompa.attach(15);
  atap.attach(13);
  InitWiFi();
  lcd.init();
  lcd.backlight();
}

void loop() {
  int analogValue = analogRead(LDR);
  float voltage = analogValue / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  delay(1000);
  if (WiFi.status() != WL_CONNECTED) {
    reconnect();
  }
  if (!tb.connected()) {
    // Connect to the ThingsBoard
    Serial.print("Connecting to Kebun Tomat Server: ");
    Serial.println(THINGSBOARD_SERVER);
    
    Serial.print(" With token ");
    Serial.println(TOKEN);
    if (!tb.connect(THINGSBOARD_SERVER, TOKEN)) {
      Serial.println("Failed to connect Kebun Tomat");
      return;
    }
  }
//Buka atap dengan tombol dan sensor Cahaya
int statusTombol = digitalRead(Thujan);
  if (statusTombol==HIGH || lux >= 50){
    jumlahTekanan ++;
    delay(200);
    if(jumlahTekanan==1){
      digitalWrite(Latap, HIGH);
      atap.write(180);
      lcd.setCursor(0,0);
      lcd.print("Monitoring GH Tomat");
      lcd.setCursor(0,2);
      lcd.print("Status Atap  :Tutup");
      Serial.println("Cuaca : Hujan");
      Serial.println("Status Atap : Tutup");
      tb.sendTelemetryString("Status Atap", "Tutup");
    }
    else if(jumlahTekanan==2 || lux <= 50){
      digitalWrite(Latap, LOW);
      jumlahTekanan = 0;
      atap.write(90);
      lcd.setCursor(0,0);
      lcd.print("Monitoring GH Tomat");
      lcd.setCursor(0,2);
      lcd.print("Status Atap  : Buka");
      Serial.println("Cuaca : Cerah");
      Serial.println("Status Atap : Buka");
      tb.sendTelemetryString("Status Atap", "Buka");
    }
  }
//mengendalikan pompa menggunakan DHT22 pengganti soil moisture
  TempAndHumidity data = dhtSensor.getTempAndHumidity();

  if (data.humidity <= 49){
    digitalWrite(Lpompa, HIGH);
    Serial.println("Status Pompa : On");
    lcd.setCursor(0,0);
    lcd.print("Monitoring GH Tomat");  
    lcd.setCursor(0,3);
    lcd.print("Status Pompa : On");
    pompa.write(180);
    tb.sendTelemetryString("Status Pompa", "Hidup");
  }
  else if (data.humidity >= 50){
    digitalWrite(Lpompa, LOW);
    Serial.println("Status Pompa : Off");

    lcd.setCursor(0,0);
    lcd.print("Monitoring GH Tomat");
    lcd.setCursor(0,3);
    lcd.print("Status Pompa : Off");  
    pompa.write(90);
    tb.sendTelemetryString("Status Pompa", "Mati");
  }
  
  Serial.print("Kelembapan Tanah: ");
  Serial.println(data.humidity);
  Serial.print("Luxmeter: ");
  Serial.println(lux);
  Serial.println("------------------");

  tb.sendTelemetryFloat("Kelembaman Tanah", data.humidity);
  tb.sendTelemetryFloat("Luxmeter", lux);
  delay(2000);
}