Diff: main.cpp

Revision:

5:4152a51f0724

Parent:

4:82c807b7685e

Child:

6:66dca4356808

--- a/main.cpp	Tue Mar 06 16:19:18 2018 +0000
+++ b/main.cpp	Wed Mar 07 14:45:18 2018 +0000
@@ -21,6 +21,7 @@
 
 Serial pc(USBTX, USBRX); // tx, rx this is for the data to be sent via the usb port to the computer
 Ticker pulse,freq,display_rate;
+InterruptIn button(PTD5);
 AnalogIn pulse_in(PTB0);
 AnalogOut o(PTE30);
 DigitalOut led(PTD5);
@@ -29,7 +30,11 @@
 int q=0;
 bool first=true;
 
-
+inline bool slope(float f[80])
+{
+    float r=(f[9]-f[3])/6;
+    return( (r>-0.01 && r<-0.03) ? true: false);
+}
 
 void get_pulse()
 {
@@ -44,11 +49,12 @@
         first=false;
 //normalization procedure
     v[q-1]=y-(sum/(float)q)+0.1;//normalization procedure raw pulse value minus the trendline(running average)
-    o=v[q-1];
+    //o=v[q-1];
     if(q==80) {
         q=0;
         sum=sum/80;
     }
+    if(slope) frq++;
 
 }
 
@@ -74,7 +80,7 @@
 char thirtn[8]= {0x4f,0x41,0x41,0x4f,0x41,0x41,0x41,0x4f};
 char fourtn[8]= {0x49,0x49,0x49,0x4f,0x41,0x41,0x41,0x41};
 char fiftn[8]= {0x4f,0x48,0x48,0x4f,0x41,0x41,0x41,0x4f};
-
+char  wave[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01};
 
 
 //DISPLAY FUNCTIONS DO NOT TOUCH
@@ -166,6 +172,10 @@
 }
 char  wave[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01};
 
+void frq()
+{
+    
+
 void disp()
 {   
     int steps=v[q]/0.0125;
@@ -181,9 +191,9 @@
 
 int main()
 {
+    splash_screen();//wait for the pulse to be stable by showing stuff on the display so the user is happy
     pulse.attach(&get_pulse,0.0125);//attach the interrupt thing so it starts the ISR every 0.0125 s
-    
-    //splash_screen();//wait for the pulse to be stable by showing stuff on the display so the user is happy knowing he is gay
+    button.rise(%frq);
     display_rate.attach(&disp,0.1);
     while(1) {
     }