Diff: flow.h

Revision:

2:ef98576cd67b

Child:

3:3d51f8870e91

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flow.h	Fri Jul 12 15:58:11 2019 +0000
@@ -0,0 +1,81 @@
+#include "mbed.h"
+
+AnalogIn flowIn(PA_0);
+Serial co2(PC_10,PC_11); //USED IN MAIN
+//Serial ttl(A1,A0);
+
+float finalflow;
+float flowVal1;
+float flowVal2;
+float P1;
+int flag=0;
+int o=0;
+float bpArray[10];
+float fp;float sp;
+float FPressure;
+int value;
+//
+float flow()
+{
+    while(1) 
+    {
+        wait(0.01);
+        flowVal1=3.3*flowIn; //Logic level 3.3
+        flowVal2 = 1.5*flowVal1; //5v
+        P1 =(125*flowVal2)-62.5;
+        if(flag==0)
+        {
+            finalflow=0;
+            bpArray[o]=P1;  
+            sp+=bpArray[o];
+            o=o+1;
+                    if (o=9)
+                    {
+                        fp=sp/10;
+                        flag=1;
+                    }            
+        }
+        if (flag==1)
+        {
+            FPressure=P1-fp;
+          finalflow=(0.24*sqrt(FPressure)); //flow in litter per min
+          //ttl.printf("Flow: %f\n",finalflow);
+          return finalflow;
+        }
+    }
+}
+
+
+float carbon()
+{
+    bool allow = false;
+    char c;
+    char co2_measure[5];
+    int count=0;
+
+    while(1) 
+    {
+        c = co2.getc();
+        if(c=='Z') {
+            allow = true;
+        }
+
+        if(allow) {
+            if(c>=48 && c<=57) {
+                co2_measure[count]=c;
+                count++;
+            }
+        
+            if(count>=6) { //NOT SURE IF 5 OR 6
+                value = ((co2_measure[0]-'0')*100000+co2_measure[1]-'0')*10000+(co2_measure[2]-'0')*1000+(co2_measure[3]-'0')*100; 
+                //ttl.printf("CO2: %d\n",value);
+                float CAR;
+                CAR=(float)value/10000;
+                count=0;
+                allow=false;
+                return CAR;
+            }
+        }
+    }
+}
+