IoT Based Patient Health Monitoring System Using Blynk App

Just Do Electronics January 27, 2022

Circuit Diagram :-

Just Scan And Download Mobile App :-

Code :-

 
//Prateek
//www.prateeks.in
// Youtube Link :- https://www.youtube.com/c/JustDoElectronics/videos

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#define BLYNK_PRINT Serial
#include <OneWire.h>
#include<DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
#include "DHT.h"
#define DHTTYPE DHT11

char auth[] = "ptmBP4extGC_GSI0WGS9B3yokgyewpwt";
char ssid[] = "justdoelectronics";
char pass[] = "123456789";


SimpleTimer timer;
#define ONE_WIRE_BUS 4    //D4
uint8_t DHTPin = 18;       //D2
DHT dht(DHTPin, DHTTYPE);
float Temperature;
float Humidity;
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DS18B20(&oneWire);
float temp;

void setup()
{
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  dht.begin();
  DS18B20.begin();
  timer.setInterval(1000L, getSendData);
  timer.setInterval(1000L, getSendData1);
  lcd.begin();
  lcd.backlight();
}

void loop()
{
  timer.run();
  Blynk.run();
}

void getSendData() {
  
  Temperature = dht.readTemperature(); 
  Humidity = dht.readHumidity(); 
  Serial.print("Room Temperature: ");
  Serial.print(Temperature);
  Serial.println("°C");
  Serial.print("Room Humidity: ");
  Serial.print(Humidity);
  Blynk.virtualWrite(V0, Temperature);
  Blynk.virtualWrite(V1, Humidity);
  
  lcd.setCursor(0, 0);
  lcd.print("T :");
  lcd.print(Temperature);
  lcd.setCursor(0, 1);
  lcd.print("H :");
  lcd.print(Humidity);
}

void getSendData1()
{
  DS18B20.requestTemperatures();
  temp = DS18B20.getTempCByIndex(0);
  Serial.println(temp);
  Blynk.virtualWrite(V2, temp); //virtual pin V10
  lcd.setCursor(9, 0);
  lcd.print("T :");
  lcd.print(temp);
  lcd.print("  ");
}

Video :-

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