Diff: main.cpp

Revision:

1:08d5b02b7eb4

Parent:

0:4691e3b49e88

Child:

2:c65e1c89824c

--- a/main.cpp	Sat Feb 25 19:15:55 2017 +0000
+++ b/main.cpp	Tue Feb 28 17:09:27 2017 +0000
@@ -1,18 +1,46 @@
 #include "mbed.h"
 
-PwmOut mypwm(PWM_OUT);
-
 DigitalOut myled(LED1);
+DigitalIn myPulse(D7);
+Timer timer;
+//void serviceMyPulse(void);
 
 int main() {
-    
-    mypwm.period_ms(10);
-    mypwm.pulsewidth_ms(1);
+  myled=0;
+  float HeartBeat=0.0f;
+  //myPulse.rise(&serviceMyPulse);
+  printf("Heart Beat Monitor!\n\r");
+  timer.start();
+  timer.reset();
+  while(true){
+      while(myPulse==0){wait_ms(50);}
+      while(myPulse==1){wait_ms(50);}
+      HeartBeat=timer.read();
+      //to convert this time we need to perform a BPM=(1/t)*60
+      HeartBeat=(1.0f/HeartBeat)*60.0f;
+      printf("Heart Beat is: %5.1f\n\r",HeartBeat);
+      if (HeartBeat < 50.0f){
+            printf( "Warning, low Heartbeat \n\r");
+      }
+      if (HeartBeat > 90.0f){
+          printf("Warning, high HeartBeart \n\r");
+           }
+           
+        if (HeartBeat == NULL){
+                printf("WARNING, Heart Stopped!!!! \n\r");
+           }
+        
+      timer.reset();
+      myled=1;
+      wait_ms(100);
+      myled=0;
+      }
   
-    printf("pwm set to %.2f %%\n", mypwm.read() * 100);
-    
-    while(1) {
-        myled = !myled;
-        wait(1);
+}
+/*
+void serviceMyPulse(void){
+    myled=1;
+    wait_ms(100);
+    myled=0;
     }
-}
+*/
\ No newline at end of file