ESP32 Forum

Code: Select all

// this sample code provided by www.programmingboss.com
#include "WiFi.h"
#include <HTTPClient.h>
#define RXp2 16
#define TXp2 17

bool bBodyFound = false; 

struct HTMLTag 
{ 

    String TagName;
    unsigned int TagPos;
    String Content;

};


const char* ssid = "Meu"; //choose your wireless ssid.
const char* password = "1234567890"; //put your wireless password here.

void setup() 
{
  // put your setup code here, to run once: sample baud radtes 9600 115200
  Serial.begin(9600);
  Serial2.begin(9600, SERIAL_8N1, RXp2, TXp2);
  WiFi.begin(ssid, password);


}
void loop() 
{
    //Serial.println("Message Received: ");
    //Serial.println(Serial2.readString());
    delay(1000);



    HTTPClient http;
    http.begin("https://creativeovenstudios.com"); //JSON request http://jsonplaceholder.typicode.com/users/1
    //("https://www.basicwebsiteexample.com/"); 
    // http://jsonplaceholder.typicode.com"; 


    String Htmlpayload;
    int httpCodeOfStatus = http.GET();
    String lFinalSentString;
    lFinalSentString = "";


    if( WiFi.status() == WL_CONNECTED && httpCodeOfStatus > 0)
    {
      

      //Serial2.println("Meow");
      Htmlpayload = http.getString();
      //Serial.println(Htmlpayload);
      Serial.println("FROM ESP32 Loop Main program begiining it ");

      delay(2000);


      for(int i = 0; i < 10000 && Htmlpayload.length() > i; i++)
      {
        int XtrI = 0;

        if( Htmlpayload[i] == '<' && Htmlpayload[i+1] == 'b' && Htmlpayload[i+2] == 'o' && Htmlpayload[i+3] == 'd' && Htmlpayload[i+4] == 'y'  )
        {   
          Serial.println("FROM ESP32v LETTERS PROCESSED Now body found tier 1");       
          //Serial.println(i);                    
          bBodyFound = true;   
        }

        if( bBodyFound   )
        {
          lFinalSentString += Htmlpayload[i];
          //lFinalSentString += "Meow";// test force memory
          //Serial.println("FROM ESP32v LETTERS PROCESSED Now body found tier 2");          
          Serial.println(Htmlpayload[i]);
    
        } 

        if( Htmlpayload[i] == '<' && Htmlpayload[i+1] == '/' && Htmlpayload[i+2] == 'b' && Htmlpayload[i+3] == 'o' && Htmlpayload[i+4] == 'd' && Htmlpayload[i+5] == 'y' )
        {   
          Serial.println("FROM ESP32v LETTERS PROCESSED Now body found tier 2 nd");       
          //Serial.println(i);                    
          bBodyFound = false;  
        }



      }
      lFinalSentString = "Hellog this is a long text to see if ti can receive a loooooooong text FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"; 
      Serial2.println(lFinalSentString);

      Serial.println(lFinalSentString); 

    }
    else
    {
      Serial2.println("Not connected yet wifi or no get");
    }


    //Serial.println(Htmlpayload);


    delay(2000);

    http.end();

    delay(2000);


}

Code: Select all

#include <Elegoo_GFX.h>    // Core graphics library
#include <Elegoo_TFTLCD.h> // Hardware-specific library
#include <TouchScreen.h> // Hardware-specific library
#include <TranslateHTMLToCHL.h>  //Library that translates


#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0

#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin

//Buttons and all 
Elegoo_GFX_Button TestHTMLButton;

String iMem;

HTMLTag TagsToRender[HTMLTagsLength];
// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:
// For the Arduino Uno, Duemilanove, Diecimila, etc.:
//   D0 connects to digital pin 8  (Notice these are
//   D1 connects to digital pin 9   NOT in order!)
//   D2 connects to digital pin 2
//   D3 connects to digital pin 3
//   D4 connects to digital pin 4
//   D5 connects to digital pin 5
//   D6 connects to digital pin 6
//   D7 connects to digital pin 7
// For the Arduino Mega, use digital pins 22 through 29
// (on the 2-row header at the end of the board).

// Assign human-readable names to some common 16-bit color values:
#define	BLACK   0x0000
#define	BLUE   Select 0x001F
#define	RED     0xF800
#define	GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF

Elegoo_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
// If using the shield, all control and data lines are fixed, and
// a simpler declaration can optionally be used:
// Elegoo_TFTLCD tft;
// this sample code provided by www.programmingboss.com


String ESP32Message = "Message entered IP?";
bool bLoadAlready = false;


void setup() 
{
  Serial.begin(9600);
  Serial1.begin(9600);



#ifdef USE_Elegoo_SHIELD_PINOUT
  Serial.println(F("Using Elegoo 2.4\" TFT Arduino Shield Pinout"));
#else
  Serial.println(F("Using Elegoo 2.4\" TFT Breakout Board Pinout"));
#endif

  Serial.print("TFT size is "); Serial.print(tft.width()); Serial.print("x"); Serial.println(tft.height());

   tft.reset();

   uint16_t identifier = tft.readID();

   if(identifier == 0x9325) 
   {
    Serial.println(F("Found ILI9325 LCD driver"));
   } 
  
  else if(identifier == 0x9328) 
  {
    Serial.println(F("Found ILI9328 LCD driver"));
    #define	BLUE    0x001F
    #define	RED     0xF800
    #define	GREEN   0x07E0
    #define CYAN    0x07FF
    #define MAGENTA 0xF81F
  } 
  
  else if(identifier == 0x4535) 
  
  {
    Serial.println(F("Found LGDP4535 LCD driver"));
  }
  else if(identifier == 0x7575) 
  {
    Serial.println(F("Found HX8347G LCD driver"));
  } else if(identifier == 0x9341) 
  {
    Serial.println(F("Found ILI9341 LCD driver"));
  } else if(identifier == 0x8357) 
  {
    Serial.println(F("Found HX8357D LCD driver"));
  } 
  else if(identifier==0x0101)
  {     
      identifier=0x9341;
       Serial.println(F("Found 0x9341 LCD driver"));
  }
  else if(identifier==0x1111)
  {     
      identifier=0x9328;Serial1.readString();
      Serial.println(F("Found 0x9328 LCD driver"));
  }
  else 
  {
    Serial.print(F("Unknown LCD driver chip: "));
    Serial.println(identifier, HEX);
    
    Serial.println(F("If using the Elegoo 2.8\" TFT Arduino shield, the line:"));
    Serial.println(F("  #define USE_Elegoo_SHIELD_PINOUT"));
    Serial.println(F("should appear in the library header (Elegoo_TFT.h)."));
    Serial.println(F("If using the breakout board, it should NOT be #defined!"));
    Serial.println(F("Also if using the breakout, double-check that all wiring"));
    Serial.println(F("matches the tutorial."));

    identifier=0x9328;
  
  }
  tft.begin(identifier);
  TestHTMLButton.initButton(&tft, 25, 25, 25, 25, 5, 5, 5, 'I', 5 );
  TestHTMLButton.drawButton();

  
}
void loop() 
{
  

  //Serial.println("FROM Arduino mega sending Info Of Sensor");
  //Serial1.println("FROM Arduino mega sending Info Of Sensor Serial1 to esp32 18tx 9rx"); 

  //Serial.println("FROM Arduino mega reading esp32");


    if(Serial1.available() > 0 && !bLoadAlready)
    {
      Serial.println("FROM Arduino mega loop Serial 1 available");
      bLoadAlready = true;
      ESP32Message = Serial1.readString();    
      Serial.println(ESP32Message);
    }

    tft.fillScreen(BLACK);
    //tft.fillScreen(BLACK);
    unsigned long start = micros();
    tft.setCursor(0, 0);
    Serial.println("THIS IS FROM PROGRAM ARD MAIN LOOPING TO SEE IF WORKS ");
    Serial.println(ESP32Message); 
    tft.setTextColor(RED);  
    tft.setTextSize(1);
    tft.println(ESP32Message);


    delay(500);
}

/*
KInd of modified Returning the used memory
*/
int FreeRam()
{ 
  extern int __heap_start, * __brkval;
  int v; 
  //return __brkval;
  return(int) &v - (__brkval == 0 ) ? ( int ) &__heap_start : (int) __brkval;
}