IoT based health monitoring system | Arduino Project

1#include "ThingSpeak.h"
2#include <ESP8266WiFi.h>
3
4//-------  WI-FI details ----------//
5char ssid[] = "XXXXXXXXXXX"; // SSID here
6char  pass[] = "YYYYYYYYYYY"; // Passowrd here
7//--------------------------------//
8
9//-----------  Channel details ----------------//
10unsigned long Channel_ID = 123456; // Channel  ID
11const char * myWriteAPIKey = "ABCDEFG1234"; //Your write API key
12//-------------------------------------------//
13
14const  int Field_Number_1 = 1;
15const int Field_Number_2 = 2;
16String value = "";
17int  value_1 = 0, value_2 = 0;
18int x, y;
19WiFiClient  client;
20
21void setup()
22{
23  Serial.begin(115200);
24  WiFi.mode(WIFI_STA);
25  ThingSpeak.begin(client);
26  internet();
27}
28
29void loop()
30{
31  internet();
32  if (Serial.available()  > 0)
33  {
34    delay(100);
35    while (Serial.available() > 0)
36    {
37      value = Serial.readString();
38      if (value[0] == '*')
39      {
40        if (value[5] == '#')
41        {
42          value_1 = ((value[1] - 0x30)  * 10 + (value[2] - 0x30));
43          value_2 = ((value[3] - 0x30) * 10 + (value[4]  - 0x30));
44        }
45        else if (value[6] == '#')
46        {
47          value_1  = ((value[1] - 0x30) * 100 + (value[2] - 0x30) * 10 + (value[3] - 0x30));
48          value_2  = ((value[4] - 0x30) * 10 + (value[5] - 0x30));
49        }
50      }
51    }
52  }
53  upload();
54}
55
56void internet()
57{
58  if (WiFi.status() != WL_CONNECTED)
59  {
60    while (WiFi.status() != WL_CONNECTED)
61    {
62      WiFi.begin(ssid,  pass);
63      delay(5000);
64    }
65  }
66}
67
68void upload()
69{
70  ThingSpeak.writeField(Channel_ID, Field_Number_1, value_1, myWriteAPIKey);
71  delay(15000);
72  ThingSpeak.writeField(Channel_ID, Field_Number_2, value_2,  myWriteAPIKey);
73  delay(15000);
74  value = "";
75}

1#include <LiquidCrystal.h>
2#include <SoftwareSerial.h>
3#include  <OneWire.h>
4#include <DallasTemperature.h>
5#define USE_ARDUINO_INTERRUPTS  true
6#include <PulseSensorPlayground.h>
7SoftwareSerial esp(10, 11);
8LiquidCrystal  lcd(7, 6, 5, 4, 3, 2);
9#define ONE_WIRE_BUS 9
10#define TEMPERATURE_PRECISION  12
11OneWire oneWire(ONE_WIRE_BUS);
12DallasTemperature sensors(&oneWire);
13DeviceAddress  tempDeviceAddress;
14int numberOfDevices, temp, buzzer = 8;
15const int PulseWire  = A0;
16int myBPM, Threshold = 550;
17PulseSensorPlayground pulseSensor;
18unsigned  long previousMillis = 0;
19const long interval = 5000;
20void setup()
21{
22  lcd.begin(16, 2);
23  Serial.begin(9600);
24  esp.begin(115200);
25  sensors.begin();
26  numberOfDevices = sensors.getDeviceCount();
27  pulseSensor.analogInput(PulseWire);
28  pulseSensor.setThreshold(Threshold);
29  pulseSensor.begin();
30  pinMode(buzzer,  OUTPUT);
31  digitalWrite(buzzer, HIGH);
32  lcd.setCursor(0, 0);
33  lcd.print("  IoT Patient");
34  lcd.setCursor(0, 1);
35  lcd.print(" Monitor System");
36  delay(1500);
37  digitalWrite(buzzer, LOW);
38  lcd.clear();
39}
40
41void  loop()
42{
43  myBPM = pulseSensor.getBeatsPerMinute();
44  if (pulseSensor.sawStartOfBeat())
45  {
46    beep();
47    lcd.setCursor(0, 1);
48    lcd.print("HEART:");
49    lcd.print(myBPM);
50    lcd.setCursor(9, 1);
51    lcd.print(" BPM");
52    delay(20);
53  }
54  sensors.requestTemperatures();
55  for (int i = 0; i  < numberOfDevices; i++)
56  {
57    if (sensors.getAddress(tempDeviceAddress,  i))
58    {
59      temp = printTemperature(tempDeviceAddress);
60      lcd.setCursor(0,  0);
61      lcd.print("BODY:");
62      lcd.print(temp);
63      lcd.print("  *C");
64    }
65  }
66  upload();
67}
68
69int printTemperature(DeviceAddress  deviceAddress)
70{
71  int tempC = sensors.getTempC(deviceAddress);
72  return  tempC;
73}
74
75void beep()
76{
77  digitalWrite(buzzer, HIGH);
78  delay(150);
79  digitalWrite(buzzer, LOW);
80}
81
82void upload()
83{
84  unsigned long currentMillis  = millis();
85  if (currentMillis - previousMillis >= interval)
86  {
87    previousMillis  = currentMillis;
88    esp.print('*');
89    esp.print(myBPM);
90    esp.print(temp);
91    esp.println('#');
92  }
93}