#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#include <stdio.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>

#define LIGHT_SENSOR_PIN 34
#define LED_blink 19

const float GAMMA = 0.7;
const float RL10 = 50;
// set the LCD number of columns and rows

int lcdColumns = 16;
int lcdRows = 2;

// set LCD address, number of columns and rows
// if you don't know your display address, run an I2C scanner sketch

LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);
TaskHandle_t myTask1Handle = NULL;
TaskHandle_t myTask2Handle = NULL;




void setup() {

  xTaskCreate(task1, "luminosité", 4096, NULL,10, &myTask1Handle);
  //xTaskCreate(task2, "Températuure", 4096, NULL, 9, &myTask2Handle);
  

 
  
  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();
  
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

}
void task1(void *arg)
{
  while(1) {
    int analogValue = analogRead(LIGHT_SENSOR_PIN);
    float voltage = analogValue / 1024. * 5;
    float resistance = 2000 * voltage / (1 - voltage / 5);
    float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  lcd.setCursor(2, 0);
  
  lcd.print("Room: ");
  if (lux > 50) {
    lcd.print("Light!");
    Serial.println("Light!");
  } else {
    lcd.print("Dark  ");
    Serial.println("Dark");
  
      
 }
 vTaskDelay( 100 / portTICK_PERIOD_MS );
}
}

void loop() {}
/*int analogValue = analogRead(LIGHT_SENSOR_PIN);
float voltage = analogValue / 1024. * 5;
float resistance = 2000 * voltage / (1 - voltage / 5);
float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
lcd.setCursor(2, 0);
  lcd.print("Room: ");
  if (lux > 50) {
    lcd.print("Light!");
  } else {
    lcd.print("Dark  ");
  }

  lcd.setCursor(0, 1);
  lcd.print("Lux: ");
  lcd.print(lux);
  lcd.print("          ");

  delay(100);

 
 char key;
passcode = "";
int i;
if (key) {
    for(i=0;i<=5;i++)
    {
     key = keypad.getKey();
     passcode += key;
     Serial.println(passcode);
    }
    
    if(passcode == password_1 || passcode == password_2 || passcode == password_3) {
        Serial.println("The password is correct, unlocking the door in 20 seconds");
      } else {
        Serial.println("The password is incorrect, try again");
      }
}
/*if(key == '*') {
      passcode = ""; // reset the input password
      Serial.println("The password is reset");
    } else if(key == '#') {
      if(passcode == password_1 || passcode == password_2 || passcode == password_3) {
        Serial.println("The password is correct, unlocking the door in 20 seconds");
      } else {
        Serial.println("The password is incorrect, try again");
      }
       passcode = ""; // reset the input password
    } else {
      passcode += key;
       // append new character to input password string
    }*/

// Motor A
int motor1Pin1 = 27; 
int motor1Pin2 = 26; 
int enable1Pin = 14; 

// Setting PWM properties
const int freq = 30000;
const int pwmChannel = 0;
const int resolution = 8;
int dutyCycle = 200;

void setup() {
  // sets the pins as outputs:
  pinMode(motor1Pin1, OUTPUT);
  pinMode(motor1Pin2, OUTPUT);
  pinMode(enable1Pin, OUTPUT);
  
  // configure LED PWM functionalitites
  ledcSetup(pwmChannel, freq, resolution);
  
  // attach the channel to the GPIO to be controlled
  ledcAttachPin(enable1Pin, pwmChannel);

  Serial.begin(115200);

  // testing
  Serial.print("Testing DC Motor...");
}


  // Move the DC motor forward at maximum speed
  Serial.println("Moving Forward");
  digitalWrite(motor1Pin1, LOW);
  digitalWrite(motor1Pin2, HIGH); 
  delay(2000);
  // Stop the DC motor
  Serial.println("Motor stopped");
  digitalWrite(motor1Pin1, LOW);
  digitalWrite(motor1Pin2, LOW);
  delay(1000);
  // Move DC motor backwards at maximum speed
  Serial.println("Moving Backwards");
  digitalWrite(motor1Pin1, HIGH);
  digitalWrite(motor1Pin2, LOW); 
  delay(2000);
  // Stop the DC motor
  Serial.println("Motor stopped");
  digitalWrite(motor1Pin1, LOW);
  digitalWrite(motor1Pin2, LOW);
  delay(1000);
  // Move DC motor forward with increasing speed
  digitalWrite(motor1Pin1, HIGH);
  digitalWrite(motor1Pin2, LOW);
  while (dutyCycle <= 255){
    ledcWrite(pwmChannel, dutyCycle);   
    Serial.print("Forward with duty cycle: ");
    Serial.println(dutyCycle);
    dutyCycle = dutyCycle + 5;
    delay(500);
  }
  dutyCycle = 200;
}