Covid-19 Tracker

28/04/202006/10/2020 Jarek 0 Comments

You don’t have to watch TV to know what the situation is in your country. In this tutorial, I will show you how to make Covid-19 Tracker. The data will refresh on the display automatically every 5 seconds. You need the Board NodeMCU and 1.8 “SPI display. In the sketch you must provide the name and password for your internet and ApiKey. Coronavirus data is downloaded from www.worldometers.info and processed by thingspeak.com.
I encourage you to visit the author of the project https://surtrtech.com/2020/03/25/keep-track-of-covid-19-outbreak-in-your-country-using-esp8266-12e-nodemcu/, here is the original program version.

Instructions:

List Elements:

NodeMCU
Display 1.8″ SPI ST 7735
PCB Prototype board / BreadBoard
Wires
Header Female pins

Connection:

First version is on prototypy pcb board
Second version is on breadboard

CODE:

Download the latest version from the project author’s website or use mine sketch

COVID-19_Tracker_TFTLCD.ino_Download

/*
 * ForbiddenBit.com
 * 
 * http://arduino.esp8266.com/stable/package_esp8266com_index.json
 * 
 * Author project: surtrtech.com
 */
#include <Adafruit_GFX.h>       //Libraries required to use the Display
#include <Adafruit_ST7735.h> 
#include <SPI.h>

#include <ESP8266WiFi.h>        //Use ESP8266 functions                                              
#include <ESP8266HTTPClient.h>

#define TFT_CS         15      //Display pins
#define TFT_RST        0
#define TFT_DC         2

// ----------------   CONFIGURE -------------------------------------------------------------
                                                                       
const char* ssid = "SSID";              //Your router SSID and password                             
const char* password =  "PASSWORD"; 
                                                                                          
const char* url1 = "/apps/thinghttp/send_request?api_key=Y75JD33K3IOGHMCO"; // API KEY

// ------------------  END  ------------------------------------------------------------------



const char* host = "api.thingspeak.com";  //We read the data from this host                                   
const int httpPortRead = 80; 
int To_remove;      //There are some irrelevant data on the string and here's how I keep the index
                    //of those characters 

String Cases,Death,Recover,Deaths,Recovered,Data_Raw,CasesW,DeathW,RecoverW,Data_Raw_1,Data_Raw_2,Data_Raw_3;  //Here I keep the numbers that I got

WiFiClient client;      //Create a WiFi client and http client                                                     
HTTPClient http; 

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST); //Those things are for the display
float p = 3.1415926;

void setup() {
  
  Serial.begin(9600);            //Start the serial communication and the display
  tft.initR(INITR_GREENTAB);                                                              
 
  WiFi.disconnect();             //Disconnect and reconnect to the Wifi you set                                                 
  delay(1000);                                                                  
  WiFi.begin(ssid, password);                                                   

  Serial.println("Connected to the WiFi network");   //Display feedback on the serial monitor                                        
  Serial.println(WiFi.localIP()); 
  
}

 void loop()                                                                      
{
if( http.begin(host,httpPortRead,url1))        //Connect to the host and the url                                      
      {
        int httpCode = http.GET();                //Check feedback if there's a response                                                  
        if (httpCode > 0)                                                              
        {
          if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) 
            {                
              
              Data_Raw = http.getString();   //Here we store the raw data string
            
              
              Data_Raw_1 = Data_Raw;    
              Serial.print("Data_Raw: ");  //I choosed to display it on the serial monitor to help you debug
              Serial.println(Data_Raw);                                
              To_remove = Data_Raw_1.indexOf(">");                      //I look for the position of this symbol ">"                                 
              Data_Raw_1.remove(0,To_remove+1);                        //I remove it and everything that's before
              To_remove = Data_Raw_1.indexOf("<");                     //I look for the position of this symbol ">"                                
              Data_Raw_1.remove(7,37);          //I remove it and everything that's after
                                                                     //Example: This is the raw data received <td style="font-weight: bold; text-align:right">63,927</td>
                                                                     //First we look for ">" and we remove everything before it including it
                                                                     //We stay with this 63,927</td>
                                                                     //We look for "<" symbol and we remove it + everything after
                                                                     //We keep only this 63,927 as string
              Cases=Data_Raw_1;
              Serial.print("Cases: ");  //I choosed to display it on the serial monitor to help you debug
              Serial.println(Cases); 
     
              Data_Raw_2=Data_Raw;

              To_remove = Data_Raw_2.indexOf("<span>");
              Data_Raw_2.remove(0,To_remove+8);
              Data_Raw_3=Data_Raw_2;
              To_remove = Data_Raw_2.indexOf("</span>");
              Data_Raw_2.remove(7,30);

              Deaths=Data_Raw_2;
              Serial.print("Deaths: ");
              Serial.println(Deaths);
            
              To_remove = Data_Raw_3.indexOf("<span>");
              Data_Raw_3.remove(0,7);

              To_remove = Data_Raw_3.indexOf("<");
              Data_Raw_3.remove(9,20);

              Recovered=Data_Raw_3;
              
              Serial.print("Recovered: ");
              Serial.println(Recovered);    
                                                                                       
            }
        }
        else //If we can't get data
        {
          Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
        }
        
        http.end();                                                                 
      } 
    else //If we can't connect to the HTTP
      {
        Serial.printf("[HTTP} Unable to connect\n");
      }


    Print_TFT();  //Display to the TFT LCD, this function will vary depending on your display
    delay(3000);

    while (WiFi.status() != WL_CONNECTED)     //In case the Wifi connexion is lost                                    
      { 
        
        WiFi.disconnect();                                                        
        delay(1000);                                                             
        
        WiFi.begin(ssid, password);                                              
        Serial.println("Reconnecting to WiFi..");       
        delay(10000);                                                             
      }

} 


void Print_TFT(){
  tft.fillScreen(ST77XX_BLACK);
  tft.setTextWrap(false);
  tft.setCursor(45, 5);    //Horiz/Vertic
  tft.setTextSize(2);
  tft.setTextColor(ST77XX_YELLOW);
  tft.print("USA");

  tft.setCursor(15, 25);    //Horiz/Vertic
  tft.setTextSize(1);
  tft.setTextColor(ST77XX_WHITE);
  tft.print("COVID-19 Tracker");

  tft.setCursor(5, 45);    //Horiz/Vertic
  tft.setTextSize(2);
  tft.setTextColor(ST77XX_BLUE);
  tft.print("Cases:");
  tft.setCursor(10, 65);
  tft.print(Cases);  

  tft.setCursor(5, 93);    //Horiz/Vertic
  tft.setTextSize(2);
  tft.setTextColor(ST77XX_GREEN);
  tft.print("RECOVERED:");
  tft.setCursor(15, 115);
  tft.setTextColor(ST77XX_WHITE);
  tft.print(Recovered); 


  tft.fillRect(0, 138 , 48, 10, ST77XX_WHITE); 
  tft.setCursor(7, 140);    //Horiz/Vertic
  tft.setTextSize(1);
  tft.setTextColor(ST77XX_BLACK);
  tft.print("DEATHS:  ");
  tft.setCursor(55, 140);
  tft.setTextColor(ST77XX_WHITE);
  tft.print(Deaths);
}

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* ForbiddenBit.com

* http://arduino.esp8266.com/stable/package_esp8266com_index.json

* Author project: surtrtech.com

#include <Adafruit_GFX.h> //Libraries required to use the Display

#include <Adafruit_ST7735.h>

#include <SPI.h>

#include <ESP8266WiFi.h> //Use ESP8266 functions

#include <ESP8266HTTPClient.h>

#define TFT_CS 15 //Display pins

#define TFT_RST 0

#define TFT_DC 2

// ---------------- CONFIGURE -------------------------------------------------------------

const char* ssid = "SSID"; //Your router SSID and password

const char* password = "PASSWORD";

const char* url1 = "/apps/thinghttp/send_request?api_key=Y75JD33K3IOGHMCO"; // API KEY

// ------------------ END ------------------------------------------------------------------

const char* host = "api.thingspeak.com"; //We read the data from this host

const int httpPortRead = 80;

int To_remove; //There are some irrelevant data on the string and here's how I keep the index

//of those characters

String Cases,Death,Recover,Deaths,Recovered,Data_Raw,CasesW,DeathW,RecoverW,Data_Raw_1,Data_Raw_2,Data_Raw_3; //Here I keep the numbers that I got

WiFiClient client; //Create a WiFi client and http client

HTTPClient http;

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST); //Those things are for the display

float p = 3.1415926;

void setup() {

Serial.begin(9600); //Start the serial communication and the display

tft.initR(INITR_GREENTAB);

WiFi.disconnect(); //Disconnect and reconnect to the Wifi you set

delay(1000);

WiFi.begin(ssid, password);

Serial.println("Connected to the WiFi network"); //Display feedback on the serial monitor

Serial.println(WiFi.localIP());

}

void loop()

{

if( http.begin(host,httpPortRead,url1)) //Connect to the host and the url

{

int httpCode = http.GET(); //Check feedback if there's a response

if (httpCode > 0)

{

if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY)

{

Data_Raw = http.getString(); //Here we store the raw data string

Data_Raw_1 = Data_Raw;

Serial.print("Data_Raw: "); //I choosed to display it on the serial monitor to help you debug

Serial.println(Data_Raw);

To_remove = Data_Raw_1.indexOf(">"); //I look for the position of this symbol ">"

Data_Raw_1.remove(0,To_remove+1); //I remove it and everything that's before

To_remove = Data_Raw_1.indexOf("<"); //I look for the position of this symbol ">"

Data_Raw_1.remove(7,37); //I remove it and everything that's after

//Example: This is the raw data received <td style="font-weight: bold; text-align:right">63,927</td>

//First we look for ">" and we remove everything before it including it

//We stay with this 63,927</td>

//We look for "<" symbol and we remove it + everything after

//We keep only this 63,927 as string

Cases=Data_Raw_1;

Serial.print("Cases: "); //I choosed to display it on the serial monitor to help you debug

Serial.println(Cases);

Data_Raw_2=Data_Raw;

To_remove = Data_Raw_2.indexOf("<span>");

Data_Raw_2.remove(0,To_remove+8);

Data_Raw_3=Data_Raw_2;

To_remove = Data_Raw_2.indexOf("</span>");

Data_Raw_2.remove(7,30);

Deaths=Data_Raw_2;

Serial.print("Deaths: ");

Serial.println(Deaths);

To_remove = Data_Raw_3.indexOf("<span>");

Data_Raw_3.remove(0,7);

To_remove = Data_Raw_3.indexOf("<");

Data_Raw_3.remove(9,20);

Recovered=Data_Raw_3;

Serial.print("Recovered: ");

Serial.println(Recovered);

}

else //If we can't get data

{

Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());

}

http.end();

}

else //If we can't connect to the HTTP

{

Serial.printf("[HTTP} Unable to connect\n");

}

Print_TFT(); //Display to the TFT LCD, this function will vary depending on your display

delay(3000);

while (WiFi.status() != WL_CONNECTED) //In case the Wifi connexion is lost

{

WiFi.disconnect();

delay(1000);

WiFi.begin(ssid, password);

Serial.println("Reconnecting to WiFi..");

delay(10000);

}

void Print_TFT(){

tft.fillScreen(ST77XX_BLACK);

tft.setTextWrap(false);

tft.setCursor(45, 5); //Horiz/Vertic

tft.setTextSize(2);

tft.setTextColor(ST77XX_YELLOW);

tft.print("USA");

tft.setCursor(15, 25); //Horiz/Vertic

tft.setTextSize(1);

tft.setTextColor(ST77XX_WHITE);

tft.print("COVID-19 Tracker");

tft.setCursor(5, 45); //Horiz/Vertic

tft.setTextSize(2);

tft.setTextColor(ST77XX_BLUE);

tft.print("Cases:");

tft.setCursor(10, 65);

tft.print(Cases);

tft.setCursor(5, 93); //Horiz/Vertic

tft.setTextSize(2);

tft.setTextColor(ST77XX_GREEN);

tft.print("RECOVERED:");

tft.setCursor(15, 115);

tft.setTextColor(ST77XX_WHITE);

tft.print(Recovered);

tft.fillRect(0, 138 , 48, 10, ST77XX_WHITE);

tft.setCursor(7, 140); //Horiz/Vertic

tft.setTextSize(1);

tft.setTextColor(ST77XX_BLACK);

tft.print("DEATHS: ");

tft.setCursor(55, 140);

tft.setTextColor(ST77XX_WHITE);

tft.print(Deaths);

}

Instructions:

List Elements:

Connection:

CODE:

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