/*
EMAIL: 
*/
#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL2aRPPeJ0o"
#define BLYNK_TEMPLATE_NAME "IOT MOTOR MONITORING"
#define BLYNK_AUTH_TOKEN "ekVAfi9nflGEs3VDPfKWZNkMOVBFxnHx"
#define oneWireBus      4
#define relay           27
#define isPresent isActive


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

LiquidCrystal_I2C lcd(0x27,20,4);
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);

bool state;
String notification;
String pNumber="0xxxxxxxxx",
      alert1="----OVER VOLTAGE----",
      alert2="--OVER TEMPERATURE--",
      alert3="---UNDER VOLTAGE----",
      alert5="--SYSTEM WORK FINE--",
      alert4="-SYSTEM TURNED OFF-";
bool isActive;
float voltage,temperature;

void setup()
{
  lcd.init();                  
  lcd.backlight();
  loadingdisplay();
  
  Serial.begin(115200);
  delay(500);
  
  sensors.begin();

  pinMode(relay,OUTPUT);
  digitalWrite(relay,LOW);

  Blynk.begin(auth, ssid, pass);
}

void loop()
{
 Blynk.run();
 get_data();
 homedisplay();
 send_update();
 if(temperature >80)
 {
    digitalWrite(relay,LOW);
    alert_display(alert2);
    Blynk.virtualWrite(V3,alert2);
    isPresent=LOW;
    Blynk.virtualWrite(V2,isPresent);
    delay(2000);
 }
 else if(voltage >250)
 {
    digitalWrite(relay,LOW);
    alert_display(alert1);
    Blynk.virtualWrite(V3,alert1);
    isPresent=LOW;
    Blynk.virtualWrite(V2,isPresent);
    delay(2000);
 }

 else if(voltage<100)
 {
    digitalWrite(relay,LOW);
    alert_display(alert3);
    Blynk.virtualWrite(V3,alert3);
    isPresent=LOW;
    Blynk.virtualWrite(V2,isPresent);
    delay(2000);
 }

 else
 {
    digitalWrite(relay,HIGH);
    Blynk.virtualWrite(V3,alert5);
    isPresent=HIGH;
    Blynk.virtualWrite(V2,isPresent);
    delay(2000);
 }
 delay(1000);
}

void get_data() 
{ 
  sensors.requestTemperatures(); 
  float temperatureC = sensors.getTempCByIndex(0);
  float temperatureF = sensors.getTempFByIndex(0);
  temperature=temperatureC;
  Serial.print(temperature);
  Serial.println("ºC");
  voltage=map(analogRead(34),0,4095,0,300);
  Serial.print(voltage);
  Serial.println(" V");
}

void send_update() 
{     
  Blynk.virtualWrite(V0,voltage);
  Blynk.virtualWrite(V1,temperature);
}

void loadingdisplay()
{
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("*---AC MOTOR ---*"); 
  lcd.setCursor(0,1);
  lcd.print("*   MONITORING    *"); 
  lcd.setCursor(0,2);
  lcd.print(" SYSTEM INITIALIZE ");
  lcd.setCursor(0,3);
  lcd.print("PLEASE WAIT");
  for(int k=11;k<20;k++)
  {
    lcd.setCursor(k,3);
    lcd.print(".");
    delay(500);
  }
}

void homedisplay()
{
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("===>CURRENT DATA<==="); 
  lcd.setCursor(0,1);
  lcd.print("VOLTAGE:"); 
  lcd.setCursor(8,1);
  lcd.print(voltage,1);
  lcd.print(" V");
  lcd.setCursor(0,2);
  lcd.print("TEMPERATURE:");
  lcd.setCursor(12,2);
  lcd.print(temperature,1);
  lcd.print("ºC");
  lcd.setCursor(0,3);
  lcd.print("STATUS:");
  lcd.setCursor(7,3);
  if(isActive){lcd.print("CONNECTED");}
  else{lcd.print("DISCONNECTED");}
  delay(500);
}

void alert_display(String textAlert)
{
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("===>SYSTEM ALERT<===");
  lcd.setCursor(0,1);
  lcd.print(textAlert);
}