/*********
  Rui Santos
  Complete project details at https://randomnerdtutorials.com  
*********/

// deconnecter D5 led et D2  (AM2302 DHT11 signal) pour charger le programme !
/*
board : ESP32 Doit Devkit1
flash freq 40Mhz   
upload 921600    
core debug : none
----

*/
// Add OLED LCD
#define VERSION "01-06-2022"
// add MCP2307
// add DS18B20
// add DHT11  AM2302

//#define VERSION "15-05-2022"
// Load Wi-Fi library
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <WebServer.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_BMP085.h>
#include <Adafruit_Sensor.h>
#include <MCP23017.h>
#include <DHTesp.h>
#include <OneWire.h>
#include <DallasTemperature.h>


//  your network credentials
const char* ssid ="ON_AIR2021";
const char* password = "cxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx4";

// set pin numbers
#define SCL 22            //ESP32 jaune --> SCL BMP085
#define SDA  21           //ESP32 fil vert --> SDA BMP085 

const int LedRouge =  5;      //  number of the LED Rouge pin
const int LedVerte =  19; 
//const int LedBleue_inBluit = 2; 

#define DS3231_ADDR 0x68     // 7 bits adresse , sinon  0xD0  sur 8 bits
#define OLED_ADDR 0x3C
#define MCP23017_ADDR 0x20

MCP23017 mcp = MCP23017(MCP23017_ADDR);
char MCP_Readchar[10];
byte mcp_PA=0;
byte mcp_PB=0;
unsigned int mcp_PAB=0;


#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
#define LOGO_HEIGHT   16
#define LOGO_WIDTH    16
#define paulfjujo_WIDTH 128
#define paulfjujo_HEIGHT 32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// Création des objets / create Objects
DHTesp dht;
#define DHTTYPE DHT22 ;  // DHT type (DHT11, DHT22)
int DHTPIN = 2 ;        // GPIO D2 <-- Broche du capteur  AM2302 
// DS18B20 pin
const int oneWireBus = 4;   

//TX2  17
//RX2 16

byte  nDevices = 0;
byte error=0;
byte address=0;
int i,j,k;
char Tempchar [10];
char Humidchar[10];
char Presschar [10];
char Ana0char[10];


char temp[64];
char  Oled_Msg[64];  // up to 18 char en taille 1
char BMPOK=0;
unsigned int Compteur;

float temperatureC;
float   p = 0.0;
float   t = 0.0 ;
float   h = 0.0 ;

// Variable to store the HTTP request
String header;
unsigned long currentTime = millis();
unsigned long previousTime = 0; 
const long timeoutTime = 2000;  // time in milliseconds (example: 2000ms = 2s)
bool status;


// Set your Gateway IP address
IPAddress local_IP(192,168,0,104);
IPAddress gateway(192,168,0,254);
IPAddress subnet(255,255,255,0);
IPAddress primaryDNS(212,27,40,241);   //optional
IPAddress secondaryDNS(212,27,40,240);   //optional

Adafruit_BMP085 bmp;

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);


String getMyLogo()
{
  String MyLogo=  "<br>  rajout (mylogo_32x32.ico) image en format base64 <br><br>";
   MyLogo +="<img alt=\"no image\" src=\"data:image/x-icon;base64,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\" />";
    MyLogo +="<br><br>";
   return MyLogo;
}


// Set web server port number to 80
WiFiServer server(80);


 void check_if_exist_I2C()
{
  nDevices = 0;
  Serial.println(" ");
  for (address = 1; address < 127; address++ ) 
  {
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();
    if (error == 0)
    {
      Serial.print("I2C device found at address 0x");
      if (address < 16)  Serial.print("0");
      Serial.print(address, HEX);
      switch (address)
            {
                case 0x20:  
                    Serial.println(" MCP23017 2x8 Bits I/O"); // de base + 7 autres
                     break;
                case 0x27:
                case 0x28:
                case 0x29:
                case 0x2A:
                    // case etc ..
                     Serial.println(" PCF8574 8bits I/O"); // de base + 7 autres
                    break;
                case 0x37:
                      Serial.println(" LCD 2119 2x16cars"); // de base + 7 autres
                    break;
                case 0x38:
                case 0x39:
                case 0x3A:
                case 0x3B:
                    // case etc ..
                      Serial.println(" PCF8574A 8bits I/O"); // de base + 7 autres
                    break;
                case 0x3C:
                      Serial.println( " OLED SSD1306");
                      break;
                case 0x53:
                       Serial.println(" ADXL345 board");
                        break;
                case 0x57:
                        Serial.println(" EEPROM 512bytes");
                        break;
                case 0x68:
                        Serial.println(" RTC DS3231");
                        break;
                case 0x77:
                        Serial.println(" BMP 085 Pression");
                        break;
                default:
                        Serial.println(" non reconnue");
                        break;
           } //switch
      nDevices++;
    }
    delay(10);
  } //for loop
  if (nDevices == 0)
    Serial.println("No I2C devices found");
  else
    Serial.printf("Trouve %3d devices sur le Bus I2C\r\n",nDevices);
  delay(200);       
}


void setup() {
  delay(4000);
  Serial.begin(115200);
  delay(200);
 // pinMode(buttonPin, INPUT);
  pinMode(LedVerte, OUTPUT); // initialize the LED pin as an output
  pinMode(LedRouge, OUTPUT); // initialize the LED pin as an output
  Serial.println("\r\n_r\n");
  Serial.print(" ESP32_Rouge_I2C_Mac_adress_DHT11_MCP23017_DS18B20_VSC_");
  Serial.println(VERSION);
  Serial.println(" ESP32 Vroom 32 DevkitV1  (Bleu) sur COM 57 ");
  Serial.println(" Led Rouge sur D5 , Led Verte sur D19 ");
  Serial.println(" DHT11-AM2302 sur D2 ");
  Serial.println(" Sonde temper.OWS  DS18B20 sur D4 ");
  Serial.println(" I2C Bus sur   D21 (SDA)  et D22 (SCL) "); 
  delay (500);
  Serial.println(" I2C adresses 7 bits devices ");
  delay(2000);
   Wire.begin(SDA,SCL); // pin on ESP32
   check_if_exist_I2C();
   Serial.println("\r\n .. Fin de test I2C bus \r\n");
 
 sensors.begin();

 //---- Pressure sensor BMP085 ---------------- 
  // Initialisation 
  if ( !bmp.begin() )
   {
    Serial.println(" BMP085 BAD!");
    delay(2000);
    BMPOK=0;
   } else 
   {
    Serial.println(" BMP085 OK");
    BMPOK=1;
  } 


// --- MCP23017 ----------------------
// https://github.com/blemasle/arduino-mcp23017
   Serial.print("  MCP23017 at  @0x20 ");
   mcp.init();
   Serial.println(" Active le PORT A du MCP , en sorties"); 
  //  setGPIOAMode(0);
   mcp.portMode(MCP23017Port::A, 0);  
    Serial.println(" Active le PORT B du MCP , en entrees");
   mcp.portMode(MCP23017Port::B, 0b11111111); //Port B as input
   mcp.writeRegister(MCP23017Register::GPIO_A, 0x00);  //Reset port A 
   mcp.writeRegister(MCP23017Register::GPIO_B, 0x00);  //Reset port B
   // GPIO_B reflects the reverse logic as the input pins state
   // (press a button to lit a led)
   mcp.writeRegister(MCP23017Register::IPOL_B, 0xFF);

 //----------- OLED SSD1306 ----------------  

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS))
  {
    Serial.println(F("SSD1306 allocation failed"));
    delay(2000);
    for(;;); // Don't proceed, loop forever
  }
  else
  Serial.println(F("SSD1306 allocation OK"));
  
   display.clearDisplay();
   display.setTextSize(1);             // Normal 1:1 pixel scale
   display.setTextColor(SSD1306_WHITE);        // Draw white text
   display.setCursor(0,0);             // Start at top-left corner
   delay(2000); // Pause for 2 seconds
   display.clearDisplay();  // Clear the buffer

   //----- DHT11 AM2302 Sensor ----------------
   dht.setup(DHTPIN,DHTesp::DHT22);
   
  //Serial.println(" Set IP adress an DNS"); 
  //if(!WiFi.config(local_IP, gateway, subnet, primaryDNS, secondaryDNS))
  // {
 // Serial.println("STA Failed to configure");
 // }
  Serial.print("Connecting to ");
  Serial.print(ssid);
  // Connect to Wi-Fi network with SSID and password
  WiFi.begin(ssid, password);
  delay(500);
  while (WiFi.status() != WL_CONNECTED) 
  {
    delay(500);
    Serial.print(".");
  }
 
   display.setTextSize(1);             // Normal 1:1 pixel scale
   display.setTextColor(SSD1306_WHITE);        // Draw white text
   display.setCursor(0,0);             // Start at top-left corner
   display.print(F("IP Adresse        "));
   display.setCursor(0,8);             // Start at top-left corner
   display.print( WiFi.localIP());
   display.setCursor(0,16);
   display.print( WiFi.macAddress());
   display.display();
   delay(2000);
  
  // Print local IP address and start web server
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  server.begin();

  // Print ESP MAC Address
  Serial.println("MAC address: ");
  Serial.println(WiFi.macAddress());
  i=1;
}

String getPage(){
  String page = "<html lang=fr-FR><head><meta http-equiv='refresh' content= NEVER />"; //content='4'/>";
  page += "<head><style>body   { background-color: 0xf0f0f0; ";
  page += " font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }";
  page += ".buttonGreen { background-color: green; color: white; font-size: 16px;} ";
  page += ".buttonYellow {background-color: yellow;color: black; font-size: 16px;} ";
  page += " h4 {font-size: 1.25rem;}  h5 {font-size: 0.5rem;}</style>";
  page += "</head></head>";
  return page;
}



void loop()
{
    
   WiFiClient client = server.available();   // Listen for incoming clients
   if (client) 
   {                             // If a new client connects,
    currentTime = millis();
    previousTime = currentTime;
    Serial.println("New Client.");   // print a message out in the serial port
    String currentLine = "";         // make a String to hold incoming data from the client
    while (client.connected() && currentTime - previousTime <= timeoutTime)   // loop while the client's connected
    {
      currentTime = millis();
      if (client.available())
      {     // if there's bytes to read from the client,
        char c = client.read();             // read a byte, then
        Serial.write(c);                    // print it out the serial monitor
        header += c;
        if (c == '\n')
        {                    // if the byte is a newline character
          // if the current line is blank, you got two newline characters in a row.
          // that's the end of the client HTTP request, so send a response:
          if (currentLine.length() == 0)
          {
            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
            // and a content-type so the client knows what's coming, then a blank line:
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println("Connection: close");
            client.println();
            
            // Display the HTML web page
            client.println("<!DOCTYPE html><html>");
            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
            client.println("<meta http-equiv=\"Refresh\" content=\"10\">");
            client.println("<link rel=\"icon\" href=\"data:,\">");
            // CSS to style the table 
            client.println("<style>body { text-align: center; font-family: \"Trebuchet MS\", Arial;}");
            client.println("table { border-collapse: collapse; width:40%; margin-left:auto; margin-right:auto; }");
            client.println("th { padding: 12px; background-color: #0043af; color: white; }");
            client.println("tr { border: 1px solid #ddd; padding: 12px; }");
            client.println("tr:hover { background-color: #bcbcbc; }");
            client.println("td { border: none; padding: 12px; }");
           // client.println(".sensor { color:white; font-weight: bold; background-color: #bcbcbc; padding: 1px; }");
            client.println("</style>");

            client.println (  "<script type=\"text/javascript\">");
            client.println ("   var target = new XMLHttpRequest();");
            client.println ("  var Consigne=0 ;");
            client.println ("   function MoinsVite(){");
            client.println ("  if (Consigne > 0) Consigne = Consigne - 1;");
            client.println ("    document.getElementById('ConsigneID').innerHTML = Consigne;");
            client.println ("     target.open('POST', '/MoinsVite', true); };");
            client.println ("  function PlusVite()  {");
            client.println ("   Consigne = Consigne + 1;");
            client.println ("   document.getElementById('ConsigneID').innerHTML = Consigne;");
            client.println ("   target.open('POST', '/PlusVite', true);  };");
            client.println (" </script>");
         
            client.println("</head><body><h1>ESP32 VROOM DevkitV1 Rouge</h1>");
            client.println("<h4> ESP32_Rouge_I2C_Mac_adress_DHT11_MCP23017_DS18B20_2022-06</h4>");
            client.println("<h4>  Mac@ = ");
            client.println(WiFi.macAddress());  client.println("</h4><br>");
              
            client.println("<table><tr><td><h3>Capteur AM2302</h3></td></tr>");
            client.println("<tr><td><b>Temperature &nbsp;</b></td><td>");
            client.println(t);
            client.println("*C</td></tr>");
            client.println("<tr><td><b>Humidite &nbsp;</b></td><td>");
            client.println(h);
            client.println("<td>%</td></tr>"); 
           
            client.println("<tr><td><h3>Capteur BMP085</h3></td>");
            client.println("<tr><td><b>Pression </b></td><td>&nbsp;");
            client.println(bmp.readPressure() / 100.0F);
            client.println(" mBar</td></tr>");
        
            client.println("<tr><td><h3>MSP23017</h3></td><td>");
            client.printf(" &nbsp; MCP_Out= 0x%02X &nbsp; MCP_Inp=0x%02X </td></tr>",mcp_PA,mcp_PB);
            client.println("<tr><td><h3>OWS sensors</h3></td>");
            client.println("<tr><td><b>DS18B20 #1<b>&nbsp;</td><td>");
            client.println(temperatureC);
            client.println("*C</td></tr>");

            client.println("<tr><td><b> Index </b></td><td>");
            client.println(i);
           
            client.println("</td></tr></table>");
            client.println("<form action='/' method='POST'>");
            client.println("<ul>Etat Led Verte : ");
            client.println(digitalRead(LedVerte));
            client.println("<br><INPUT type='radio' name='LedVerte' Value='1'><b>ON</b> &nbsp;&nbsp;");
            client.println("<INPUT type='radio' name='LedVerte' Value='0'><b>OFF</b></ul>");
            client.println("<br><h3>Consigne Vitesse</h3>");
            client.println("<p><input type=\"range\" onchange=\"updateSliderPWM(this)\" id=\"pwmSlider\" min=\"0\" max=\"1023\" value=\"%SLIDERVALUE%\" step=\"1\" class=\"slider\"></p>");
            client.println("<p>Consigne= <a id=\"ConsigneID\">0</a> <br> </p>");
            client.println("<br><p>");
           client.println("<button class=\"buttonGreen\" type=\"button\" onclick=\"PlusVite()\"> +Vite</button>&nbsp;&nbsp;");
           client.println("<button class=\"buttonYellow\" type=\"button\" onclick=\"MoinsVite()\"> -Vite</button>");
            client.println("</p>");
            client.println("</body></html>");
                   // The HTTP response ends with another blank line
            client.println();
            // Break out of the while loop
            break;
          } 
          else
          { // if you got a newline, then clear currentLine
            currentLine = "";
          }
        }
        else 
        {
         if (c != '\r') 
         {  // if you got anything else but a carriage return character,
          currentLine += c;      // add it to the end of the currentLine
         }
        }
      }  // if clien available
    }  
       // Clear the header variable
       header = "";
      // Close the connection
      client.stop();
      Serial.println("Client disconnected.");
      Serial.println("");
  } // while client connected
  else
  {

    display.clearDisplay();
    display.setCursor(0,0); 
    display.print(F("Compteur          ")); 
    display.setCursor(70,0); 
    snprintf(Oled_Msg,6,"% 5d",Compteur);
    display.print(Oled_Msg);
    display.display();
    delay(1000);
    
    display.clearDisplay();

    i++;
    Serial.printf("i=%5d",i);
    if (BMPOK==1) p = bmp.readPressure() / 100.0F;  else p=999.99; 
    Serial.printf(" Press.% 5.0f mBar \r\n",p); 
    // model=dht.getModel();
    t = dht.getTemperature();
    if (isnan(t)) 
    {
    //Serial.println(" PB T.DHT11 ");
    snprintf(Tempchar,6,"%s\t"," ???");
     }
     else
     {
    snprintf(Tempchar,6,"%3.2f\t",t);
    Serial.print(F(" DHT11 Temp.: ")); 
    Serial.print(Tempchar);
     display.clearDisplay();
     display.setCursor(0,8); 
    //               123456789012345678
    display.print(F("DHT11 Temp.       ")); 
    display.setCursor(70,8); 
    display.print(Tempchar);
    }

    h=dht.getHumidity();
    if (isnan(h)) 
    {
     snprintf(Humidchar,6,"%s\t"," ???");
    }
    else
    {
     snprintf(Humidchar,6,"%2.2f\t",h);
    }
    Serial.print(F(" Humid : ")); 
    Serial.println(Humidchar);
    
    display.setCursor(0,16); 
    display.print(F("DHT11 Humi   ")); 
    display.setCursor(70,16); 
    display.print(Humidchar);
    display.display();
     delay(1000);

    mcp_PA= mcp.readPort(MCP23017Port::A);
    mcp_PB= mcp.readPort(MCP23017Port::B);
    mcp.writePort(MCP23017Port::A, i & 0x00FF);
    Serial.printf("  MCP_Out= 0x%02X     MCP_Inp=0x%02X    ",mcp_PA,mcp_PB);

    sensors.requestTemperatures();
    temperatureC = sensors.getTempCByIndex(0);
    Serial.print(temperatureC);
    Serial.println("° C");
    if ((i & 1)==1) digitalWrite(LedRouge,HIGH); else digitalWrite(LedRouge,LOW);
     delay(1000);
  }
}
/*

*/