Add SpO2 and heart rate monitoring .ino file

diabeta_device/OximeterAndLCDAndFirebase.ino

+
+#include <Wire.h>
+#include "MAX30100_PulseOximeter.h"
+#define BLYNK_PRINT Serial
+#include <ESP8266WiFi.h>
+#include <Arduino.h>
+#include "Wire.h"
+#include <LiquidCrystal_I2C.h>
+
+#include <Firebase_ESP_Client.h>
+
+//Provide the token generation process info.
+#include "addons/TokenHelper.h"
+//Provide the RTDB payload printing info and other helper functions.
+#include "addons/RTDBHelper.h"
+
+
+#define REPORTING_PERIOD_MS 1000
+
+#define WIFI_SSID "SLT-4G -kaami"
+#define WIFI_PASSWORD "Pari22@%"
+
+// Insert Firebase project API Key
+#define API_KEY "AIzaSyD5IRuR9PAvwRZzbUcLlRXr7iSkHjEobcs"
+
+// Insert RTDB URLefine the RTDB URL */
+#define DATABASE_URL "https://diabeta-e2bfe-default-rtdb.firebaseio.com/"
+
+//Define Firebase Data object
+FirebaseData fbdo;
+
+FirebaseAuth auth;
+FirebaseConfig config;
+
+unsigned long sendDataPrevMillis = 0;
+int count = 0;
+int beatCount = 0;
+bool signupOK = false;
+
+WiFiClient client;
+
+// Connections : SCL PIN - D1 , SDA PIN - D2 , INT PIN - D0
+PulseOximeter pox;
+LiquidCrystal_I2C lcd(0x27, 16, 2);
+
+//float BPM, SpO2;
+uint32_t tsLastReport = 0;
+float heartBeats[10];
+
+
+
+void onBeatDetected()
+{
+  Serial.println("Beat Detected!");
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  lcd.begin();
+
+
+  lcd.backlight();
+  lcd.clear();
+  startUp();
+  delay(100);
+  startUp();
+  delay(100);
+  startUp();
+  delay(100);
+
+
+  Serial.println("Connecting to ");
+  Serial.println(WIFI_SSID);
+
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Connecting to ");
+  lcd.setCursor(0, 1);
+  lcd.print(WIFI_SSID);
+
+  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
+  while (WiFi.status() != WL_CONNECTED)
+  {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.print("IP address:\t");
+  Serial.println(WiFi.localIP());
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Connected to ");
+  lcd.setCursor(0, 1);
+  lcd.print(WiFi.localIP());
+  delay(2000);
+
+  /* Assign the api key (required) */
+  config.api_key = API_KEY;
+
+  /* Assign the RTDB URL (required) */
+  config.database_url = DATABASE_URL;
+
+  /* Sign up */
+  if (Firebase.signUp(&config, &auth, "", "")) {
+    Serial.println("ok");
+    signupOK = true;
+  }
+  else {
+    Serial.printf("%s\n", config.signer.signupError.message.c_str());
+  }
+
+  /* Assign the callback function for the long running token generation task */
+  config.token_status_callback = tokenStatusCallback; //see addons/TokenHelper.h
+
+  Firebase.begin(&config, &auth);
+  Firebase.reconnectWiFi(true);
+
+  pinMode(16, OUTPUT);
+
+  Serial.print("Initializing Pulse Oximeter..");
+
+  if (!pox.begin())
+  {
+    Serial.println("FAILED");
+    for (;;);
+  }
+  else
+  {
+    Serial.println("SUCCESS");
+    pox.setOnBeatDetectedCallback(onBeatDetected);
+  }
+
+  delay(10);
+
+
+  
+}
+
+void loop()
+{
+  pox.update();
+
+
+  float BPM = pox.getHeartRate();
+  float SpO2 = pox.getSpO2();
+
+  if (millis() - tsLastReport > REPORTING_PERIOD_MS)
+  {
+
+
+    Serial.print("Heart rate:");
+    Serial.print(BPM);
+    Serial.print(" bpm / SpO2:");
+    Serial.print(pox.getSpO2());
+    Serial.println(" %");
+
+    lcd.backlight();
+    lcd.clear();
+    lcd.setCursor(0, 0);
+    lcd.print("HR: ");
+    lcd.setCursor(6, 0);
+    lcd.print(BPM);
+    lcd.print("bpm");
+    lcd.setCursor(0, 1);
+    lcd.print("SPo2: ");
+    lcd.setCursor(6, 1);
+    lcd.print(pox.getSpO2());
+    lcd.print("%");
+    delay(10);
+    heartBeats[beatCount] = BPM;
+    beatCount++;
+
+    tsLastReport = millis();
+
+    if (BPM > 20 && beatCount > 10) {
+      beatCount = 0;
+      pox.shutdown();
+
+
+      if (Firebase.RTDB.setFloat(&fbdo, "2/HR", pox.getHeartRate())) {
+        Serial.println("Heart Rate PASSED");
+        Serial.println("PATH: " + fbdo.dataPath());
+        Serial.println("TYPE: " + fbdo.dataType());
+      }
+      else {
+        Serial.println("FAILED");
+        Serial.println("REASON: " + fbdo.errorReason());
+      }
+      if (Firebase.RTDB.setInt(&fbdo, "2/SPo2", pox.getSpO2())) {
+        Serial.println("SPo2 Level PASSED");
+        Serial.println("PATH: " + fbdo.dataPath());
+        Serial.println("TYPE: " + fbdo.dataType());
+      }
+      else {
+        Serial.println("FAILED");
+        Serial.println("REASON: " + fbdo.errorReason());
+      }
+      pox.resume();
+
+    }else{
+      
+    }
+
+
+    delay(10);
+  }
+}
+
+void bubbleSort() {
+  for (int i = 0; i < 9; i++) {
+    for (int o = 0; o < (10 - (i + 1)); o++) {
+      if (heartBeats[o] > heartBeats[o + 1]) {
+        float t = heartBeats[o];
+        heartBeats[o] = heartBeats[o + 1];
+        heartBeats[o + 1] = t;
+      }
+    }
+  }
+}
+
+void image02() {
+  lcd.clear();
+
+  byte image07[8] = {B00000, B01100, B11110, B11111, B11111, B11111, B11111, B11111};
+  byte image06[8] = {B00000, B00000, B00000, B00000, B00001, B00011, B00011, B00011};
+  byte image22[8] = {B00001, B00001, B00000, B00000, B00000, B00000, B00000, B00000};
+  byte image23[8] = {B11111, B11111, B11111, B11111, B01111, B00111, B00011, B00001};
+  byte image24[8] = {B11111, B11111, B11111, B11111, B11110, B11100, B11000, B10000};
+  byte image25[8] = {B10000, B10000, B00000, B00000, B00000, B00000, B00000, B00000};
+  byte image09[8] = {B00000, B00000, B00000, B00000, B10000, B11000, B11000, B11000};
+  byte image08[8] = {B00000, B01110, B11111, B11111, B11111, B11111, B11111, B11111};
+
+  lcd.createChar(0, image07);
+  lcd.createChar(1, image06);
+  lcd.createChar(2, image22);
+  lcd.createChar(3, image23);
+  lcd.createChar(4, image24);
+  lcd.createChar(5, image25);
+  lcd.createChar(6, image09);
+  lcd.createChar(7, image08);
+
+  lcd.setCursor(4, 0);
+  lcd.write(byte(0));
+  lcd.setCursor(3, 0);
+  lcd.write(byte(1));
+  lcd.setCursor(3, 1);
+  lcd.write(byte(2));
+  lcd.setCursor(4, 1);
+  lcd.write(byte(3));
+  lcd.setCursor(5, 1);
+  lcd.write(byte(4));
+  lcd.setCursor(6, 1);
+  lcd.write(byte(5));
+  lcd.setCursor(6, 0);
+  lcd.write(byte(6));
+  lcd.setCursor(5, 0);
+  lcd.write(byte(7));
+
+}
+
+void startUp() {
+
+  image02();
+  lcd.setCursor(9, 0);
+  lcd.print("Dia");
+  lcd.setCursor(9, 1);
+  lcd.print("Beta");
+  delay(2000);
+  lcd.clear();
+  lcd.setCursor(9, 0);
+  lcd.print("Dia");
+  lcd.setCursor(9, 1);
+  lcd.print("Beta");
+  delay(100);
+}