Published May 20, 2020 © GPL3+

ACT(Active Covid Tracker)

To assist the doctors to track their patients during COVID-19

IntermediateShowcase (no instructions)5 hours2,096

Things used in this project

Hardware components

Espressif ESP8266 ESP-12E

ProtoCentral Electronics ProtoCentral Pulse Oximeter & Heart Rate Sensor based on MAX30100

SparkFun Power Cell - LiPo Charger/Booster

1S LIPO CHARGER AND 5V BOOST CONVERTER

Battery, 3.7 V

thermister 10k

ElectroPeak 0.96" OLED 64x128 Display Module

Recommended is 128x32 I2C OLED module

Software apps and online services

Blynk

Ubidots

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Solder Wire, Lead Free

PCB, For DMB-4775

Story

STORY AND EXPLANATION

ORIGIN OF THE PROPOSAL:

The main inspiration of this project came while we are searching and analysing the pre-corona and post-corona situations of the patients. One day we came across a information in which people were being tested positive after they were sent home from quarantine and treatment centres. And because of that people around him were also being affected thereby increasing the number of virus cases. We would like to share the links in which information regarding this kind of virus spread is mentioned and cases were recorded.

https://economictimes.indiatimes.com/news/international/world-news/coronavirus-reappears-in-discharged-patients-raising-questions-in-containment-fight/articleshow/74385565.cms

https://www.indiatoday.in/coronavirus-outbreak/story/is-a-covid-19-patient-really-coronavirus-free-after-being-discharged-from-hospital-1666409-2020-04-13

COMPONENTS REQUIRED:

ESP8266 12E
128X32 OLED I2C DISPLAY
MAX30100 SENSOR
THERMISTER 10K
1S LIPO BATTERY
LIPO CHARGER AND 5V BOOST CONVERTER
3.3v voltage regulator

SOON I WILL UPLOAD A COMPLETE DETAILS!!!

Code

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <EasyButton.h>
#include "MAX30100_PulseOximeter.h"
#include "MAX30100.h"
#define BLYNK_PRINT Serial//redefine  BLYNK_PRINT as Serial
#include <ESP8266WiFi.h>//header file for controlling wifi
#include <BlynkSimpleEsp8266.h>//header for blynk
#include <TimeLib.h>//header file for counter
#include <WidgetRTC.h>// header file for Real Time Clock
#include "Ubidots.h"
long int update_timer=millis();
long int button_timer=millis();
long int on_screen=millis();
long int on_screen_heart=millis();
long int random_time=millis();
#define BUTTON_PIN D7
#define REPORTING_PERIOD_MS      1000
#define PULSE_WIDTH              MAX30100_SPC_PW_1600US_16BITS
#define IR_LED_CURRENT           MAX30100_LED_CURR_50MA  
#define LED_CURRENT              MAX30100_LED_CURR_20_8MA 
#define SAMPLING_RATE            MAX30100_SAMPRATE_1000HZ
PulseOximeter pox;
MAX30100 sensor;
#define OLED_RESET 4
Adafruit_SSD1306 display(-1);
uint32_t tsLastReport = 0;
uint32_t last_beat=0;
bool initialized=false;
int HRclean;
int SpO2;
char context[50];
char lattitude[20];
char longitude[20];
int ThermistorPin =A0;
int Vo;
float R1 = 4500;
float logR2, R2, T, Tc, Tf;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
int menu=1;
int beat=0;
int oxygen=0;
int heart=0;
int heart_screen=0;
int oxygen_screen=0;

/*=================================================================================================================*/

char auth[] = "Auth_code";// indentification of your board like phone number
const char* DEVICE_TYPE = "device";     // Edit here your device type label
const char* WIFI_SSID = "wifi_name";           // Put here your Wi-Fi SSID
const char* WIFI_PASS = "password";           // Put here your Wi-Fi password
const char* UBIDOTS_TOKEN = "TOKEN";  // Put here your Ubidots TOKEN


/*================================================================================================================*/

// 'mm', 33x32px
const unsigned char thermometer [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x00, 0x00, 0x00, 
  0x04, 0x10, 0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x1c, 
  0x10, 0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x1c, 0x10, 
  0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x04, 0x10, 0x00, 0x00, 0x00, 0x1c, 0x10, 0x00, 
  0x00, 0x00, 0x04, 0x90, 0x00, 0x00, 0x00, 0x0c, 0x90, 0x00, 0x00, 0x00, 0x04, 0x90, 0x00, 0x00, 
  0x00, 0x04, 0x90, 0x00, 0x00, 0x00, 0x04, 0x90, 0x00, 0x00, 0x00, 0x08, 0x88, 0x00, 0x00, 0x00, 
  0x11, 0x84, 0x00, 0x00, 0x00, 0x21, 0xc2, 0x00, 0x00, 0x00, 0x23, 0xe2, 0x00, 0x00, 0x00, 0x27, 
  0xf2, 0x00, 0x00, 0x00, 0x67, 0xf3, 0x00, 0x00, 0x00, 0x27, 0xf2, 0x00, 0x00, 0x00, 0x23, 0xe2, 
  0x00, 0x00, 0x00, 0x21, 0xc2, 0x00, 0x00, 0x00, 0x10, 0x04, 0x00, 0x00, 0x00, 0x08, 0x18, 0x00, 
  0x00, 0x00, 0x03, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};


// '3e3e3e', 30x30px
const unsigned char satellite [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x07, 0x80, 0x00, 0x00, 0x0f, 0x80, 0x00, 0x00, 
  0x07, 0x60, 0x00, 0x00, 0x02, 0xf0, 0x00, 0x00, 0x01, 0xf0, 0x00, 0x00, 0x00, 0xec, 0x00, 0x00, 
  0x00, 0x5e, 0x70, 0x00, 0x00, 0x3e, 0xf8, 0x00, 0x00, 0x1d, 0xfc, 0x00, 0x00, 0x0b, 0xfc, 0x00, 
  0x00, 0x07, 0xfc, 0x00, 0x00, 0x0f, 0xf8, 0x00, 0x00, 0x0f, 0xf0, 0x00, 0x00, 0x0f, 0xee, 0x00, 
  0x00, 0x77, 0xdf, 0x00, 0x00, 0x7b, 0xbe, 0x00, 0x00, 0x3c, 0x1c, 0xc0, 0xc4, 0x1c, 0x09, 0xe0, 
  0xce, 0x0c, 0x03, 0xc0, 0x66, 0x00, 0x03, 0x98, 0x63, 0x00, 0x01, 0x3c, 0x73, 0xc0, 0x00, 0x78, 
  0x38, 0xe0, 0x00, 0x70, 0x1c, 0x00, 0x00, 0x20, 0x0e, 0x00, 0x00, 0x00, 0x07, 0xc0, 0x00, 0x00, 
  0x03, 0xe0, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00
};

// 'mml', 30x30px
const unsigned char heart_logo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf8, 0x7e, 0x00, 0x03, 0xfc, 0xff, 0x80, 
  0x07, 0xff, 0xff, 0x80, 0x0f, 0xff, 0xff, 0xc0, 0x0f, 0xff, 0xff, 0xc0, 0x0f, 0xff, 0xff, 0xc0, 
  0x0f, 0xff, 0xff, 0xc0, 0x07, 0xff, 0xff, 0x80, 0x07, 0xff, 0xff, 0x80, 0x03, 0xff, 0xff, 0x00, 
  0x01, 0xff, 0xfe, 0x00, 0x00, 0xff, 0xfc, 0x00, 0x00, 0x7f, 0xf8, 0x00, 0x00, 0x3f, 0xf0, 0x00, 
  0x00, 0x1f, 0xe0, 0x00, 0x00, 0x0f, 0xc0, 0x00, 0x00, 0x07, 0x80, 0x00, 0x00, 0x03, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'mml', 15x15px
const unsigned char heart_logo_small_1 [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0xf0, 0x3f, 0xf8, 0x3f, 0xf8, 0x3f, 0xf8, 0x1f, 0xf0, 
  0x0f, 0xe0, 0x07, 0xc0, 0x03, 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'mml', 20x20px
const unsigned char heart_logo_small_2 [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x9f, 0x00, 0x1f, 
  0xff, 0x80, 0x1f, 0xff, 0x80, 0x1f, 0xff, 0x80, 0x1f, 0xff, 0x80, 0x0f, 0xff, 0x80, 0x0f, 0xff, 
  0x00, 0x07, 0xfe, 0x00, 0x03, 0xfc, 0x00, 0x01, 0xf8, 0x00, 0x00, 0xf0, 0x00, 0x00, 0x60, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

// 'dsds', 30x30px
const unsigned char black [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'ewew', 30x30px
const unsigned char lung_logo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x38, 0x30, 0x00, 
  0x00, 0xfb, 0x7c, 0x00, 0x01, 0xf9, 0x7e, 0x00, 0x03, 0xfa, 0x7f, 0x00, 0x07, 0xfb, 0x7f, 0x80, 
  0x07, 0xfc, 0xff, 0xc0, 0x0f, 0x00, 0x03, 0xc0, 0x0f, 0x08, 0x61, 0xe0, 0x1e, 0x98, 0x76, 0xe0, 
  0x1f, 0xb8, 0x73, 0x70, 0x3f, 0x38, 0x71, 0xf0, 0x3e, 0xb8, 0x7d, 0xf0, 0x3e, 0xb8, 0x7e, 0xf0, 
  0x3d, 0xb8, 0x7e, 0x78, 0x3d, 0xf8, 0x77, 0x78, 0x3f, 0xf8, 0x7f, 0x78, 0x3f, 0xf8, 0x3f, 0x78, 
  0x3f, 0xf0, 0x3f, 0xf8, 0x3f, 0xe0, 0x0f, 0xf8, 0x3e, 0x00, 0x01, 0xf0, 0x18, 0x00, 0x00, 0x30, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'dsdsd', 30x30px
const unsigned char o_logo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x3c, 0x30, 0x00, 
  0x00, 0x78, 0xec, 0x00, 0x00, 0x39, 0xc4, 0x00, 0x00, 0x01, 0x82, 0x00, 0x00, 0x02, 0x02, 0x00, 
  0x00, 0x00, 0x02, 0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0xfe, 0x20, 0x00, 
  0x01, 0xff, 0x80, 0x00, 0x03, 0xb1, 0xc0, 0x00, 0x07, 0xc0, 0xe0, 0x00, 0x07, 0x80, 0x60, 0x00, 
  0x07, 0x00, 0x60, 0x00, 0x0f, 0x00, 0x67, 0x80, 0x0c, 0x00, 0x6c, 0x80, 0x06, 0x00, 0x60, 0xc0, 
  0x06, 0x00, 0x60, 0x80, 0x07, 0x00, 0xc3, 0x80, 0x03, 0x81, 0xc7, 0x00, 0x01, 0xff, 0x86, 0x00, 
  0x00, 0x7e, 0x0f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'asas', 30x30px
const unsigned char o2_logo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x00, 0x00, 
  0x01, 0xff, 0xe0, 0x00, 0x03, 0xff, 0xf0, 0x00, 0x07, 0xc0, 0xf8, 0x00, 0x0f, 0x00, 0x78, 0x00, 
  0x0f, 0x00, 0x3c, 0x00, 0x0e, 0x00, 0x3c, 0x00, 0x1e, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x1c, 0x00, 
  0x1e, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x1c, 0x00, 
  0x0e, 0x00, 0x3c, 0x00, 0x0f, 0x00, 0x3c, 0x00, 0x07, 0x80, 0x78, 0x00, 0x07, 0xe3, 0xf1, 0xc0, 
  0x03, 0xff, 0xe2, 0x60, 0x00, 0xff, 0xc0, 0x60, 0x00, 0x1e, 0x00, 0x60, 0x00, 0x00, 0x00, 0xc0, 
  0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x03, 0xe0, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

//Ubidots ubidots(UBIDOTS_TOKEN, UBI_HTTP);
//Ubidots client(UBIDOTS_TOKEN);
Ubidots ubidots(UBIDOTS_TOKEN);
EasyButton button(BUTTON_PIN,60,false,false);
BlynkTimer timer;// creating timer
WidgetRTC rtc;//creating real time clock
WidgetLCD lcd(V3);


/*===================== RTC ==========================*/
BLYNK_CONNECTED() {
  rtc.begin();// Synchronize time on connection //getting current time from network
  Blynk.syncVirtual(V4);
}


/*===================== DECTECTING STATUS ==========================*/
void onBeatDetected()
{
    beat=1;
    Serial.println("beat");
    last_beat=millis();
}


/*===================== UPDATING MENU ==========================*/
void update_menu()
{
  if(millis()-button_timer>300)
  {
  menu++;
  button_timer=millis();
  if(menu>5)
  {
    menu=1;
  }
  display.clearDisplay();
  on_screen=millis();
  }
 
}
/*===================== MENU 1: CLOCK_DISPLAY ==========================*/
void clock_display()
{
  
  display.setTextColor(WHITE, BLACK);
  display.drawRect(117, 25, 3, 3, WHITE);     // Put degree symbol (  )
  draw_text(0, 25, "TEMPERATURE =", 1);
  draw_text(122, 25, "C", 1);
  /*============Display Date=================*/
  display.setTextSize(1);
  display.setCursor(0,0);
  display.print(dayStr(weekday()));
  char currentDate [16];
  uint8_t thisDay, thisMonth ;
  thisDay = day();
  thisMonth =  month();
  sprintf (currentDate, "%02d/%02d/", thisDay, thisMonth); //add leading zeros to the day and month
  display.setTextSize(1);
  display.setCursor(62,0);
  display.print(currentDate);
  display.setTextSize(1);
  display.setCursor(102,0);
  display.print(year(), DEC);
  /*================Display Time================*/ 
  char buffer [16];
  uint8_t thisSec, thisMin, thisHour;
  thisSec = second();
  thisMin =  minute();
  thisHour = hour();
  sprintf (buffer, "%02d:%02d:%02d", thisHour, thisMin, thisSec);
  display.setCursor(0,9);
  
  display.setTextSize(2);
  display.print(" ");
  display.setCursor(15,9);
  display.print(buffer);
  /*=============Display Temperature=====================*/
  display.setTextSize(1);
  display.setCursor(82,25);
  display.print(Tc);

  display.display(); 
  lcd.print(0,0,"     ACTIVE     ");
  lcd.print(0,1,"     TRACKER    ");

 }
void draw_text(byte x_pos, byte y_pos, char *text, byte text_size) {
  display.setCursor(x_pos, y_pos);
  display.setTextSize(text_size);
  display.print(text);
  display.display();
}

/*===================== MENU 2: HEART_RATE ==========================*/
void heart_rate(int i)
{
  if(i==1)
  {
  Serial.println("heart");
  Serial.println(HRclean);
   display.clearDisplay();
   display.setCursor(0,0);
   display.setTextSize(1);
   //display.setTextColor(WHITE);
   display.println("HEART RATE");
   display.setTextSize(2);
   display.setCursor(0,9);
   display.print(HRclean);
   display.setCursor(0,25);
   display.setTextSize(1);
    display.print("  BPM");
   if(heart_screen>=0 && heart_screen <5)
   {
  
    display.drawBitmap(90, 0,black,30,30, WHITE);
   display.drawBitmap(90, 0,heart_logo_small_1,15,15, WHITE);
   
   }
   else if(heart_screen>=5 && heart_screen<10)
   {
   display.drawBitmap(90, 0,black,30,30, WHITE);
   display.drawBitmap(90, 0,heart_logo_small_2,20,20, WHITE);
   
   }
   else if(heart_screen>=10 && heart_screen<15)
   {
    display.drawBitmap(90, 0,heart_logo, 30,30, WHITE);

   
   }
   display.display();
   heart_screen++;
   if(heart_screen>14)
   {
    heart_screen=0;
   }
   lcd.print(0, 0, "   Heart Rate   "); 
   lcd.print(0,1,"     ");
   lcd.print(4, 1,"   ");
   lcd.print(4, 1,HRclean);
   lcd.print(7, 1,"Bpm     ");
  }
 
}

/*===================== MENU 3: OXYGEN_LEVEL ==========================*/
void oxygen_level(int i)
{
  if(i==1)
  {
  Serial.println("Oxygen");
  Serial.println(SpO2);
   display.clearDisplay();
   display.setCursor(0,0);
   display.setTextSize(1);
   //display.setTextColor(WHITE);
   display.println("Oxygen_level");
   display.setTextSize(2);
   display.setCursor(0,9);
   display.print(SpO2);
    display.print("%");
   if(oxygen_screen>=0 && oxygen_screen<10)
   {
   display.drawBitmap(90, 0,lung_logo, 30,30, WHITE);
   
   }
   else if(oxygen_screen>=10 && oxygen_screen<20)
   {
   
   display.drawBitmap(90, 0,o_logo,30,30, WHITE);
   
   }
  
   display.display();
   oxygen_screen++;
   if(oxygen_screen>19)
   {
    oxygen_screen=1;
   }
   lcd.print(0, 0, "  Oxygen_level  "); 
   lcd.print(0,1,"      ");
   lcd.print(5, 1,"   ");
   lcd.print(5,1,SpO2);
   lcd.print(8,1,"%     ");
  }
 
}

/*===================== MENU 4: TEMPERATURE ==========================*/
void temperature(int i)
{
  
  Vo = analogRead(ThermistorPin);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
  logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
  Tc = T - 273.15;
  Tf = (Tc * 9.0)/5.0 + 32.0; 
  if(i==1)
  {
  Serial.print("Temperature: "); 
  Serial.print(Tf);
  Serial.print(" F; ");
  Serial.print(Tc);
  Serial.println(" C");  
  display.clearDisplay();
  display.setCursor(0,0);
  display.setTextSize(2);
  display.println(Tc,1);
  display.setCursor(50,0);
  display.setTextSize(1);
  display.print("o");
  display.setCursor(60,0);
  display.setTextSize(2);
  display.print("C");
  display.setCursor(0,16);
  display.println(Tf,1);
  display.setCursor(50,16);
  display.setTextSize(1);
  display.print("o");
  display.setCursor(60,16);
  display.setTextSize(2);
  display.print("F");
  display.drawBitmap(85, 0,thermometer, 33,32, WHITE);
  display.display();
  
   lcd.print(0,0,"Body Temperature");
   lcd.print(0,1,int(Tc));
   lcd.print(3,1,"C   ");
   lcd.print(8,1,int(Tf));
   lcd.print(10,1,"F     ");
  
  }
}

/*===================== MENU 5: GPS_STATUS ==========================*/
 BLYNK_WRITE(V4) 
  {
   GpsParam gps(param);
   sprintf(context,"lat=%.6f$lng=%.6f",gps.getLat(),gps.getLon());
   sprintf(lattitude,"lat=%.6f",gps.getLat());
   sprintf(longitude,"lng=%.6f",gps.getLon());
 }
void gps()
{
 
  
  Serial.println(lattitude);
  Serial.println();
  Serial.println(longitude);
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);
  display.setTextSize(2);
  display.println("  GPS");
  display.setTextSize(1);
  display.println(lattitude);
  display.println(longitude);
  display.drawBitmap(90, 0,satellite, 30,30, WHITE);
  display.display();
   lcd.print(0,0,lattitude);
   lcd.print(0,1,longitude);
   lcd.print(13, 0,"   ");
   lcd.print(13, 1,"   ");
  
}

void ubi_dots()
{
  
  Serial.println(context);
  heart_rate(0);
  oxygen_level(0);
  temperature(0);
  ubidots.add("Temperature",Tf);  // Change for your variable name
  ubidots.add("heart_rate",HRclean);
  ubidots.add("oxygen_level",SpO2);
  ubidots.send();
  if( minute()%10==0)
  {
  ubidots.add("position",1.0,context); 
  ubidots.send();
  }
  Blynk.virtualWrite(V0,Tf);
  Blynk.virtualWrite(V1,HRclean);
  Blynk.virtualWrite(V2,SpO2);
  if(Tf>103)
  {
    Blynk.email("rengarider31@gmail.com", "Patient:Renga","Temperature is beyond normal");
  }
  if(heart>103)
  {
    Blynk.email("rengarider31@gmail.com", "Patient:Renga","Heart rate is beyond normal");
  }
  if(oxygen<90 &&oxygen >0)
  {
    Blynk.email("rengarider31@gmail.com", "Patient:Renga","Oxygen level is less than  normal");
  }
  Serial.println("data sent");
}


void setup() {
  
   Serial.begin(115200);
   display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  
   display.clearDisplay();
   button.begin();
   button.enableInterrupt(update_menu); // enabling interrupt to call update_menu function
   
    pox.begin();
    pox.setOnBeatDetectedCallback(onBeatDetected); 
    pox.setIRLedCurrent(LED_CURRENT);  
    sensor.setMode(MAX30100_MODE_SPO2_HR);
    sensor.setLedsPulseWidth(PULSE_WIDTH);
    sensor.setSamplingRate(SAMPLING_RATE); 
   
   display.setTextSize(2);
   display.setTextColor(WHITE);
   display.println("CONNECTING");
   display.println("  TO NET  ");
   display.display();
   delay(500);
   ubidots.wifiConnect(WIFI_SSID, WIFI_PASS);
   Blynk.begin(auth,WIFI_SSID,WIFI_PASS);// connecting to Network
   display.clearDisplay();
   setSyncInterval(10* 60); //every 10min the system will sync the time from internet
   //timer.setInterval(60000L, clockDisplay);
   lcd.clear(); //Use it to clear the LCD Widget
   lcd.print(0,0,"     ACTIVE     ");
   lcd.print(0,1,"     TRACKER    ");
  
   heart_rate(0);
   oxygen_level(0);
   temperature(0);
}


void loop() {
    pox.update();
    HRclean = pox.getHeartRate();
    SpO2 = pox.getSpO2();
  
  if(millis()-update_timer >60000)
  {
   update_timer=millis();
   heart_rate(0);
   oxygen_level(0);
   temperature(0);
   ubi_dots();
  }
if(millis()-on_screen <60000)
{  
  if(menu==1)
  {
   temperature(0);
   clock_display();
   delay(100);
  }
  else if(menu==2)
  {
   heart_rate(1);
   delay(150);
  }
  else if(menu==3)
  {
   oxygen_level(1);
   delay(150);
  }
  else if(menu==4)
  {
    temperature(1);
    delay(150);
  }
  else if(menu==5)
  {
    gps();
    delay(150);
  }
  else if(menu>5)
  {
    menu=1;
  }
}
else
{
  Serial.println("sleep"); 
  menu=0;
  display.clearDisplay();
  display.display();
}
  Blynk.run();//communicate to mobile
}