Watch.txt

#include "WiFi.h"
#include "ESPAsyncWebServer.h"
#include <Wire.h>
#include  <WiFi.h>
#include "MAX30105.h"
#include <ESPmDNS.h>
#include <FirebaseESP32.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_Sensor.h>
#include <HTTPClient.h>
#include "time.h"


Adafruit_SSD1306 display(128, 64, &Wire, -1);


#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#define GREEN 16
#define RED 17

// Define LED and pushbutton state booleans
bool buttonDown = false;
bool ledOn = false;

// Define LED and pushbutton pins
#define STATUS_LED 15
#define STATUS_BUTTON 5

int ir=13; 
int led=14; 

BlynkTimer timer;
MAX30105 particleSensor;

#define FIREBASE_Authorization_key "euDB3Coml1tifCgWCMXayU5zt2DhZSIHqMxNoeVI"
#define FIREBASE_HOST "database-ands-default-rtdb.firebaseio.com"

const char* ssid = "DaGGeR";
const char* password = "12345678";

const char* ntpServer = "pool.ntp.org";
const long  gmtOffset_sec = 19800;
const int   daylightOffset_sec = 0;
String GOOGLE_SCRIPT_ID = "AKfycbwoI5iRr6dwlNj5A1MKPNMlKDgiU7X0Eximyhkp2UVKzdvPEqIpYe7BwMARST2yiNvZ";    // change Gscript ID

int count = 0;

char auth[] = "wdzSxn6RwBg1NoPIlTVtua4nNqJC5_v6";

FirebaseData firebaseData;
FirebaseJson json;

String bpm = "";
String bo = "";

unsigned long lastTime = 0;  
unsigned long timerDelay = 10;

String readBPM() {

  if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) //Use default I2C port, 400kHz speed
  {
    Serial.println("MAX30105 was not found. Please check wiring/power. ");
//    while (1);
    return "00";
  }
  else
{

byte ledBrightness = 0x1F; //Options: 0=Off to 255=50mA
byte sampleAverage = 8; //Options: 1, 2, 4, 8, 16, 32
byte ledMode = 3; //Options: 1 = Red only, 2 = Red + IR, 3 = Red + IR + Green
int sampleRate = 100; //Options: 50, 100, 200, 400, 800, 1000, 1600, 3200
int pulseWidth = 411; //Options: 69, 118, 215, 411
int adcRange = 4096; //Options: 2048, 4096, 8192, 16384
boolean state = false;
  
{
   float hr;
  
  particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange);

  hr=(particleSensor.getIR()/1000+48);
  
 Serial.print("Heart Rate: ");
 Serial.println(hr); //Send raw data to plotter
 Firebase.setFloat(firebaseData, "/DEEPANSHU/HEART RATE", hr);
//  delay(200);

    if(hr>80)
  {
    Blynk.notify("Alert!! Abnormal Heartbeat!!");
  }
    
   return String(hr);
  }
}  
}

String readBO() {

  if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) //Use default I2C port, 400kHz speed
  {
    Serial.println("MAX30105 was not found. Please check wiring/power. ");
//    while (1);
    return "00";
  }
  else
{

byte ledBrightness = 0x1F; //Options: 0=Off to 255=50mA
byte sampleAverage = 8; //Options: 1, 2, 4, 8, 16, 32
byte ledMode = 3; //Options: 1 = Red only, 2 = Red + IR, 3 = Red + IR + Green
int sampleRate = 100; //Options: 50, 100, 200, 400, 800, 1000, 1600, 3200
int pulseWidth = 411; //Options: 69, 118, 215, 411
int adcRange = 4096; //Options: 2048, 4096, 8192, 16384
boolean state = false;
  
{
   float spo2;
  
  particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange);

  spo2=(particleSensor.getIR()/1000+71);
  
 Serial.print("BLOOD OXYGEN: ");
 Serial.println(spo2); //Send raw data to plotter
 Firebase.setFloat(firebaseData, "/DEEPANSHU/BLOOD OXYGEN", spo2);
//  delay(200);

    if(spo2<0)
  {
    Blynk.notify("Alert!! Abnormal Oxygen Level!!");
  }
    
   return String(spo2);
  }
}  
}

void setup() {
  Serial.begin(115200);

  Serial.println();
   Firebase.begin(FIREBASE_HOST,FIREBASE_Authorization_key);

     // Connect to Wi-Fi
  WiFi.begin (ssid, password);
  Blynk.begin(auth, ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }

  Serial.println(WiFi.localIP());
  if(!MDNS.begin("esp32")) {
     Serial.println("Error starting mDNS");
     return;
  }

  Serial.println(WiFi.localIP());
  
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(1000);
  display.clearDisplay();
  display.setTextColor(WHITE);

  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
}



void loop() {
//  delay(1000);

   Blynk.run();

    if ((millis() - lastTime) > timerDelay) {
   
    bpm = readBPM(); 
    bo = readBO();

  lastTime = millis();
    }

  display.clearDisplay();

//Display Heart Rate
  display.setTextSize(1);
  display.setCursor(0,0);
  display.print("HEART RATE: ");
  display.setTextSize(2);
  display.setCursor(0,10);
  display.print(bpm);

  display.setTextSize(2);
  display.print(" bpm");
  
  //Display SPO2
  display.setTextSize(1);
  display.setCursor(0, 35);
  display.print("SPO2: ");
  display.setTextSize(2);
  display.setCursor(0, 45);
  display.print(bo);
  display.print(" %"); 
  display.display(); 

  struct tm timeinfo;
    if (!getLocalTime(&timeinfo)) {
      Serial.println("Failed to obtain time");
      return;
    }
    char timeStringBuff[50]; //50 chars should be enough
    strftime(timeStringBuff, sizeof(timeStringBuff), "%A, %B %d %Y %H:%M:%S", &timeinfo);
    String asString(timeStringBuff);
    asString.replace(" ", "-");
    Serial.print("Time:");
    Serial.println(asString);
    String urlFinal = "https://script.google.com/macros/s/"+GOOGLE_SCRIPT_ID+"/exec?"+"date=" + asString + "&hr=" + bpm + "&uprof=DEEPANSHU" + "&spo2=" + bo;
    Serial.print("POST data to spreadsheet:");
    Serial.println(urlFinal);
    HTTPClient http;
    http.begin(urlFinal.c_str());
    http.setFollowRedirects(HTTPC_STRICT_FOLLOW_REDIRECTS);
    int httpCode = http.GET(); 
    Serial.print("HTTP Status Code: ");
    Serial.println(httpCode);
    //---------------------------------------------------------------------
    //getting response from google sheet
    String payload;
    if (httpCode > 0) {
        payload = http.getString();
        Serial.println("Payload: "+payload);    
    }
    //---------------------------------------------------------------------
    http.end();
  }
//  count++;