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Patient monitoring - IoT/Source Code/main/main.ino

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+
+#include <SPI.h>
+#include <Ethernet.h>
+#include <LiquidCrystal.h>
+
+byte mac[] = { 0x00, 0x1A, 0xB6, 0x03, 0x14, 0xED };
+char server[] = "shrikant.16mb.com";
+
+EthernetClient client;
+LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
+										//  "{\"P\":1,\"H\":120,\"T\":32,\"ECG\":[567,678,678]}";
+String data="{\"P\":";
+boolean newline=false, response=false;
+String ACK;
+int HR,patientID;
+
+const unsigned long durationHR=5000;
+const int SW1=8;  // Patient 1
+const int SW2=9;  // Patient 2
+const int SW3=10;  // Patient 3
+const int SW4=30;  // OK
+const int pinHR=40; // Interrupt Pin for HR
+
+void setup() {
+  delay(1000);
+  Serial.begin(9600);
+  lcd.begin(16, 2);
+  lcd.print("IoT HealthCare");
+  delay(2000);
+  initIoT();
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Select PatientID");
+}
+
+void loop() {
+  boolean P1,P2,P3;
+
+  P1=digitalRead(SW1);
+  P2=digitalRead(SW2);
+  P3=digitalRead(SW3);
+  if(P1||P2||P3){
+    if(P1)  patientID=1;
+    if(P2)  patientID=2;
+    if(P3)  patientID=3;
+    lcd.clear();
+    lcd.setCursor(0,0);
+	  lcd.print("PatientID");
+	  lcd.setCursor(0,1);
+	  lcd.print(patientID);
+    delay(1000);  // Delete
+    process();
+  }
+}
+
+void initIoT(){
+  pinMode(SW1,INPUT);
+  pinMode(SW2,INPUT);
+  pinMode(SW3,INPUT);
+  pinMode(SW4,INPUT);
+  pinMode(pinHR,INPUT_PULLDOWN);
+  initializeEthernet();
+}
+
+void process(){
+  data+=String(patientID)+",\"T\":";
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Take Temperature.?");
+  while(!(digitalRead(SW4)));
+  lcd.setCursor(0,1);
+  lcd.print("Wait...");
+  delay(1000);
+  takeTemperature();
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Take Heart Rate.?");
+  while(!(digitalRead(SW4)));
+  lcd.setCursor(0,1);
+  lcd.print("Wait...");
+  delay(1000);
+  takeHR();
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Take ECG.?");
+  while(!(digitalRead(SW4)));
+  lcd.setCursor(0,1);
+  lcd.print("Wait...");
+  delay(1000);
+  takeECG();
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Send to Server.?");
+  while(!(digitalRead(SW4)));
+  lcd.setCursor(0,1);
+  lcd.print("Wait...");
+  delay(1000);
+  connectServer();
+  ackServer();
+}
+
+void takeTemperature(){
+  int tempC;
+  tempC=analogRead(A3);
+  tempC/=12.41;
+  data+=String(tempC)+",\"H\":";
+  lcd.print(tempC);
+  delay(2000);
+}
+
+void takeHR(){
+  unsigned long startTime;
+  HR=0;
+  startTime=millis();
+  attachInterrupt(pinHR,readHR,RISING);
+  while((millis()-startTime)<durationHR){
+
+  }
+  detachInterrupt(pinHR);
+  HR*=12;
+  data+=String(HR)+",\"ECG\":[0";
+  lcd.print(HR);
+  delay(2000);
+}
+
+void readHR(){
+  HR++;
+}
+
+void takeECG(){
+  int adc;
+  for(int i=0;i<100;i++){
+    adc=analogRead(A1);
+    data+=","+String(adc);
+    delay(20);
+  }
+  data+="]}";
+}
+
+void initializeEthernet(){
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Ethernet Init");
+  lcd.setCursor(0,1);
+  if (Ethernet.begin(mac) == 0){
+    lcd.print("DHCP Error");
+    while(1);
+  }
+  lcd.print("DHCP OK");
+  delay(1000);
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("IP Address");
+  lcd.setCursor(0,1);
+  lcd.print(Ethernet.localIP());
+  delay(2000);
+}
+
+void connectServer(){
+  lcd.clear();
+  lcd.setCursor(0,0);
+  if(client.connect(server, 80)){
+    lcd.print("Connected");
+    delay(2000);
+    client.println("POST /iot/uploadData.php HTTP/1.1");
+    client.println("Host: shrikant.16mb.com");
+    client.println("Content-Type: application/json");
+    client.print("Content-Length: ");
+    client.println(data.length());
+    client.println("Connection: close");
+    client.println();
+    client.println(data);
+    Serial.println(data);
+  }
+  else{
+    lcd.print("Disconnected");
+    delay(2000);
+  }
+}
+
+void ackServer(){
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Server ACK");
+  ACK=" ";
+  while(client.connected()){
+    if(client.available()){
+      char c = client.read();
+      if(newline && (c=='\r'))  response=true;
+      else  newline=false;
+      if(c=='\n') newline=true;
+      if(response){
+        ACK+=c;
+      }
+    }
+  }
+  lcd.setCursor(0,1);
+  lcd.print(ACK);
+  Serial.println(ACK);
+  delay(2000);
+  if(!client.connected()){
+    lcd.clear();
+    lcd.setCursor(0,0);
+    lcd.print("Disconnected");
+    lcd.setCursor(0,1);
+    lcd.print("Select PatientID");
+    response=false;
+    client.stop();
+  }
+}
+