Diff: main.cpp

Revision:

0:c1405e7fbed3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Mar 16 19:33:27 2018 +0000
@@ -0,0 +1,43 @@
+/*
+    Project: CE_Temp_Read
+    File: main.cpp
+    
+    Reads from analog input, streams ASCII text to std serial using printf and
+    lights onboard LED. Also demonstrates use of floating point literal suffix
+    toeliminate warning and int constants for HIGH and LOW.
+    
+    Written by: Dr. C. S. Tritt
+    Created: 3/14/18 (v. 0.9)
+    
+*/
+#include "mbed.h"
+
+const int SIZE = 20;
+const float PAUSE = 0.001;
+const float INTERVAL = 0.5;
+
+AnalogIn analog_value(PB_0); // Same as A3
+ 
+DigitalOut led(LED1);
+
+int main() {
+    float value; // Value to be read and sent to serial port.
+    
+    printf("\nCE Dev Board Temperature Read\n");
+    led = 0;
+    
+    while(true) {
+        int i = 0;
+        float sum = 0.0;
+        while (i < (SIZE - 1)) {
+            value = analog_value.read(); // Read the analog input value (0 to 1).
+            sum = sum + value;
+            i++;
+            wait(PAUSE);
+        }
+        float aveValue = sum/(float) SIZE;
+        printf("Value = %f\n", aveValue); // Send value as text via serial port.
+        led = !led;
+        wait(INTERVAL);
+    }
+}
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