Diff: main.cpp

Revision:

0:8f4002068b49

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 24 12:30:11 2015 +0000
@@ -0,0 +1,57 @@
+#include "mbed.h"
+
+//Global objects
+BusOut binaryOutput(D5, D6, D7);    
+AnalogIn POT_ADC_In(A0);
+AnalogIn LDD_ADC_In(A1);
+
+float fPOT, fLDR = 0.0;
+float fPOTAverage = 0.0, fLDRAverage = 0.0;
+unsigned int n = 0;
+unsigned int N = 10;
+
+//Main function
+int main() {
+    
+    while(1) {
+        
+        //Read ADC
+        fPOT = POT_ADC_In;
+        fLDR = LDD_ADC_In;
+        
+        //Calculate the average of both fPOT and fLDR
+        fPOTAverage += fPOT;
+        fLDRAverage += fLDR;
+        
+        //Update the sample count
+        n++;
+        
+        //Wait
+        wait(0.01);        
+        
+        //Do we have N samples?
+        if (n == N) {
+            
+            //Calculate average
+            fPOTAverage /= (float)N;
+            fLDRAverage /= (float)N;
+            
+            //Write to terminal
+            printf("POT = %6.4f\tLDR = %6.4f\n", fPOTAverage, fLDRAverage);
+        
+            //Check the threshold
+            if (fLDRAverage > fPOTAverage) {
+                binaryOutput = 0;   //Binary 000    
+            } else {
+                binaryOutput = 7;   //Binary 111
+            }  
+            
+            //RESET averages and sample count
+            n = 0;
+            fPOTAverage = 0.0;
+            fLDRAverage = 0.0;        
+        }
+
+        
+    } //end while(1)
+} //end main
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