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Test_Mini/Test_Mini.ino

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+#include <Wire.h>
+#include <SoftwareSerial.h>
+#include "MAX30100_PulseOximeter.h"
+#define REPORTING_PERIOD_MS     1000
+
+// PulseOximeter is the higher level interface to the sensor
+// it offers:
+//  * beat detection reporting
+//  * heart rate calculation
+//  * SpO2 (oxidation level) calculation
+
+PulseOximeter pox;
+
+SoftwareSerial portOne(10, 11);// RX, TX
+SoftwareSerial portTow(3, 4);// RX, TX
+uint32_t tsLastReport = 0;
+String St="" ;
+int timeout=0 , timein =1001;
+
+
+// Callback (registered below) fired when a pulse is detected
+void onBeatDetected()
+{
+  portOne.println("Beat!");
+}
+bool val = true ;
+void setup()
+{
+   portOne.begin(115200);
+
+   portOne.print("Initializing pulse oximeter..");
+    // Initialize the PulseOximeter instance
+    // Failures are generally due to an improper I2C wiring, missing power supply
+    // or wrong target chip
+    if (!pox.begin()) {
+       portOne.println("FAILED");
+        for(;;);
+    } else {
+       portOne.println("SUCCESS");
+    }
+    // The default current for the IR LED is 50mA and it could be changed
+    //   by uncommenting the following line. Check MAX30100_Registers.h for all the
+    //   available options.
+    // pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);
+    // Register a callback for the beat detection
+    pox.setOnBeatDetectedCallback(onBeatDetected);
+
+    /// Serial Print to Bluetooth
+     portTow.begin(9600);
+     Serial.begin(9600);
+
+
+}
+
+void loop()
+{
+ //portOne.listen();
+
+   pox.update();
+
+ if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
+     //  Serial.print("time = ");
+     //  Serial.println(millis());
+       Serial.print("H=");
+       Serial.print(pox.getHeartRate());
+     Serial.print(" ,O=");
+        Serial.println(pox.getSpO2());
+
+        tsLastReport = millis();
+
+   }
+
+
+  portTow.listen();
+
+  if (portOne.isListening()) {
+  // Serial.print("P1Ls");
+}else{
+ //  Serial.print("P1nLS");
+}
+  if (  portTow.overflow()) { //Serial.println("FLW"); 
+    }
+                     if (portTow.isListening()) 
+                     {
+
+                           if(portTow.available() > 0 )
+                           { 
+                                St = portTow.readString(); 
+
+                            }
+                          //  delay(400);
+                           // Serial.println(" , P2Ls");
+                       }
+
+                         else{
+                          //   Serial.println("  , p2nLs");
+                                }
+// delay(500);
+    // Make sure to call update as fast as possible
+
+
+    // Asynchronously dump heart rate and oxidation levels to the serial
+    // For both, a value of 0 means "invalid"
+
+
+       if( St!="")
+       {
+
+            Serial.println(St);
+            St="";
+       }
+
+//delay(100);
+}

code_in_Nano/code_in_Nano.ino

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+#include <Wire.h>
+#include <Adafruit_MLX90614.h>
+Adafruit_MLX90614 mlx = Adafruit_MLX90614();
+int H = 0 ;
+void setup(){
+// initialize the serial communication:
+Serial.begin(9600);
+pinMode(4, INPUT); // Setup for leads off detection LO +
+pinMode(5, INPUT); // Setup for leads off detection LO -
+
+  Serial.println("Adafruit MLX90614 test");  
+  mlx.begin(); 
+}
+
+void loop() {
+
+if((digitalRead(4) == 1)||(digitalRead(5) == 1)){
+//Serial.println('!');
+}
+else{
+// send the value of analog input 0:
+H =analogRead(A0);
+}
+//Wait for a bit to keep serial data from saturating
+delay(50);
+  Serial.print("R="); Serial.print(H);
+// Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempC()); 
+  Serial.print(" , C="); Serial.print(mlx.readObjectTempC());
+  delay(1300);
+
+// Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempF()); 
+// Serial.print("*F\tObject = "); Serial.print(mlx.readObjectTempF()); Serial.println("*F");
+//Serial.println();
+//delay(500);
+
+}