Diff: main.cpp

Revision:

1:d901038c4bd2

Parent:

0:cbee968c2ec3

Child:

2:a17facee23c1

--- a/main.cpp	Tue Nov 17 17:19:01 2015 +0000
+++ b/main.cpp	Tue Nov 17 17:26:59 2015 +0000
@@ -13,16 +13,17 @@
     while(1) {
         meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
         meas = meas * 3300; // Change the value to be in the 0 to 3300 range (currently to mV)
-        b=meas/(4.0*12.2*100.0); // Based 9h 
-        printf("meas = %fmV\n\r",meas);
-        printf("b = %f Gauss\n\r",b);
+        printf("meas = %fmV\n\r",meas); // Print out raw measurement in terms of mV
+        b=meas/(4.0*12.2*100.0); // Based on equation 1
+        printf("b = %f Gauss\n\r",b); // Print out b field measure in Gauss
         printf("B = %fuT\n\r", b*100.0); // Output B field in micro-Tesla
-        if (meas > 2000) { // If the value is greater than 2V then switch the LED on (greater than 
+        if (meas > 2000) { // If the value is greater than 2V then switch the LED on
+          // greater than 410 microGauss [40 mT]
           led = 1;
         }
         else {
           led = 0;
         }
-        wait(1.0); // 1 s
+        wait(1.0); // wait 1 second
     }
 }