//#define PIN_POT A1
#define VREF 5.0 
#define RES_ADC 4096
#define PIN_LUX A0
#define PIR_SENSOR 13
#define DHT22_PIN 25
//#define SERVO_PIN 18
#define LED_R 15
#define LED_G 23
#define LED_Y 2
#define BUZZER 5


int warm_up;

//#include "ESP32Servo.h"
#include "DHT.h"

Servo myServo; // create servo object
DHT dht22(DHT22_PIN, DHT22);



int Sensor_LUX(){
  int raw = analogRead(PIN_POT);

  Serial.println("Raw: " + String(raw));

  int lux = map(raw, 32, 4063, 100000, 0.1);
  Serial.print(", lumenes: ");
  Serial.println(lux);
  myServo.write(lux);

  float voltage = (raw * VREF) / RES_ADC;

  Serial.println("voltage: " + String(voltage));

  if (lux == 0)
    myServo.write(180);
  if (lux == 50119)
    myServo.write(90);
  if (lux == 100000)
    myServo.write(0);

  delay(100); 
}

int Sensor_PIR(){
  int salida_sensor = digitalRead(PIR_SENSOR);

  if(salida_sensor == LOW){
    if(warm_up == 1){
      Serial.print("Calentando\n");
      warm_up = 0;
      delay(2000);
    }
    Serial.print("Objeto no detectado\n");
    delay(1000);
  }
  else{
    Serial.print("Objeto detectado\n");
    warm_up = 1;
    delay(1000);
  }

}

void Sensor_DHT(){
  float humi = dht22.readHumidity();

  float tempC = dht22.readTemperature();
  float tempF = dht22.readTemperature(true);
  if(isnan(humi) || isnan(tempC) || isnan(tempF)){
    Serial.println("Problema al leer el sensor DHT22!");
  } 
  else{
    Serial.print("DHT22# Humedad: ");
    Serial.print(humi);
    Serial.print("%");

    Serial.print(" | ");

    Serial.print("Temperatura: ");
    Serial.print(tempC);
    Serial.print("°C ~ ");
    Serial.print(tempF);
    Serial.println("°F");
    delay(250);
  }

  
}

void setup() {
  
  //myServo.attach(SERVO_PIN);
  pinMode(PIR_SENSOR, INPUT);
  pinMode(LED_G, OUTPUT);
  pinMode(LED_Y, OUTPUT);
  pinMode(LED_R, OUTPUT);
  Serial.begin(115200);
  dht22.begin();
  Serial.println("Esperando a que inicie el sensor PIR");
  delay(2000);
  Serial.println("Listo!");
}

void loop() {
  //Sensor_LUX();
  //Sensor_PIR();
  //Sensor_DHT(tempC);
/*
  float humi = dht22.readHumidity();

  float tempC = dht22.readTemperature();
  float tempF = dht22.readTemperature(true);
  if(isnan(humi) || isnan(tempC) || isnan(tempF)){
    Serial.println("Problema al leer el sensor DHT22!");
  } 
  else{
    Serial.print("DHT22# Humedad: ");
    Serial.print(humi);
    Serial.print("%");

    Serial.print(" | ");

    Serial.print("Temperatura: ");
    Serial.print(tempC);
    Serial.print("°C ~ ");
    Serial.print(tempF);
    Serial.println("°F");
    delay(250);
  }
*/

  int salida_sensor = digitalRead(PIR_SENSOR);

  if(salida_sensor == LOW){
    if(warm_up == 1){
      Serial.print("Calentando\n");
      warm_up = 0;
      delay(2000);
    }
    Serial.print("Objeto no detectado\n");
    delay(1000);
  }
  else{
    Serial.print("Objeto detectado\n");
    warm_up = 1;
    float humi = dht22.readHumidity();
    
    float tempC = dht22.readTemperature();
    float tempF = dht22.readTemperature(true);
    if(isnan(humi) || isnan(tempC) || isnan(tempF)){
      Serial.println("Problema al leer el sensor DHT22!");
    } 
    else{
    Serial.print("DHT22# Humedad: ");
    Serial.print(humi);
    Serial.print("%");

    Serial.print(" | ");

    Serial.print("Temperatura: ");
    Serial.print(tempC);
    Serial.print("°C ~ ");
    Serial.print(tempF);
    Serial.println("°F");
    delay(250);
    }

    if ( 15 < tempC && tempC <20){
      digitalWrite(LED_G, HIGH);
    }
    else if (20 <= tempC && tempC < 28){
      digitalWrite(LED_Y, HIGH);
    }
    else if(tempC >= 28){
      digitalWrite(LED_R, HIGH);
      digitalWrite(BUZZER, HIGH);
    }
    delay(3000);
  }



}