Diff: main.cpp

Revision:

0:60d48344319c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 03 00:04:32 2016 +0000
@@ -0,0 +1,221 @@
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX);
+
+double xLoc, yLoc;
+
+DigitalOut myled(LED1);
+DigitalOut control(p21);
+
+DigitalOut charge1M(p5);//1M output
+DigitalOut charge100K(p6);//100K output
+DigitalOut charge10K(p7);//10K output
+DigitalOut charge1K(p8);//1K output
+DigitalOut charge100(p9);//100 output
+
+AnalogIn fullIndic(p15);
+AnalogIn emptyIndic(p19);
+DigitalInOut pin20(p20);
+Timer t;
+int timeElaps;
+float microFarads;
+double changeTime = 1000;
+
+double R100 = 98.94;
+double R1K = 981.7;
+double R10K = 9922.0;
+double R100K = 99200.0;
+double R1M = 987200.0;
+
+double Rval = 0.0;
+
+bool fail;
+bool leave = true;
+float RC=0.54;//53;
+
+char startSig[5];
+
+bool checkForC(void)
+{
+    startSig[0] = pc.getc();
+    if(startSig[0] == 'c'){return true;}
+    return false;
+}
+
+void checkDischarge(void)
+{
+    
+    myled = 1;
+    
+    charge1M = 0;
+    charge100K = 0;
+    charge10K = 0;
+    charge1K = 0;
+    charge100 = 0;
+    
+    control = 1;
+    //bool success = true;
+    charge1M = 0;
+    pin20.output();
+    pin20 = 0;
+    while(fullIndic.read() > 0.07){}//pc.printf("read: %f\n",fullIndic.read());}
+}
+
+void start1M(void)
+{
+    Rval = R1M;
+    fail = false;
+    control = 0;
+    pin20.input();
+    pin20.mode(PullNone);
+    charge1M = 1;
+    t.reset();
+    t.start();
+    
+    while(fullIndic < RC){
+        if(t.read_ms() > changeTime){
+            fail = true;
+            charge1M = 0;
+            break;
+        }
+    }
+    t.stop();
+}
+
+void start100K(void)
+{
+    Rval = R100K;
+    fail = false;
+    control = 0;
+    pin20.input();
+    pin20.mode(PullNone);
+    charge100K = 1;
+    t.reset();
+    t.start();
+    
+    while(fullIndic < RC){
+        if(t.read_ms() > changeTime){
+            fail = true;
+            charge100K = 0;
+            break;
+        }
+    }
+    t.stop();
+}
+
+void start10K(void)
+{
+    Rval = R10K;
+    fail = false;
+    control = 0;
+    pin20.input();
+    pin20.mode(PullNone);
+    charge10K = 1;
+    t.reset();
+    t.start();
+    
+    while(fullIndic < RC){
+        if(t.read_ms() > changeTime){
+            fail = true;
+            charge10K = 0;
+            break;
+        }
+    }
+    t.stop();
+}
+
+void start1K(void)
+{
+    Rval = R1K;
+    fail = false;
+    control = 0;
+    pin20.input();
+    pin20.mode(PullNone);
+    charge1K = 1;
+    t.reset();
+    t.start();
+    
+    while(fullIndic < RC){
+        if(t.read_ms() > changeTime){
+            fail = true;
+            charge1K = 0;
+            break;
+        }
+    }
+    t.stop();
+}
+
+void start100(void)
+{
+    Rval = R100;
+    fail = false;
+    control = 0;
+    pin20.input();
+    pin20.mode(PullNone);
+    charge100 = 1;
+    t.reset();
+    t.start();
+    
+    while(fullIndic < RC){
+        /*if(t.read_ms() > changeTime){
+            fail = true;
+            charge100 = 0;
+            break;
+        }*/
+    }
+    t.stop();
+}
+
+void sendErrorMsg(void){
+    pc.printf("could not read capacitor\n");    
+}
+
+int main() {
+    while(1){
+    
+    leave = true;
+    startSig [0] = pc.getc();
+    while(startSig[0] != 's'){startSig [0] = pc.getc();}
+    
+    for(int count = 0; count < 10; count++){
+    
+    checkDischarge();
+    myled = 0;
+    start1M();
+    //pc.printf("1M\n");
+
+    if(fail){
+        checkDischarge();
+        
+        //pc.printf("100K\n");
+        if(fail){// && leave){
+            checkDischarge();
+            start10K();
+
+            //pc.printf("10K\n");
+            if(fail){// && leave){
+                checkDischarge();
+                start1K();
+
+                if(fail){// && leave){
+                    checkDischarge();
+                    start100();
+
+                    if(fail){}//&& leave){}//sendErrorMsg();}
+                }    
+            }
+        }
+    }
+    
+    
+    timeElaps = t.read_ms();
+    t.reset();
+    t.start();
+    t.stop();
+    
+    microFarads = (((double)timeElaps-t.read_ms())/Rval);
+    pc.printf("%f", microFarads);
+    //pc.printf("This is the cap: %f", microFarads);
+    }
+    }
+}