Revision 3:665ae1f64bf0, committed 2020-05-07

Comitter:

CSTritt

Date:

Thu May 07 15:37:04 2020 +0000

Parent:

2:1f9267d3f3f4

Commit message:

Variable rate version of my FET blank program.

Changed in this revision

--- a/main.cpp	Thu May 07 14:39:17 2020 +0000
+++ b/main.cpp	Thu May 07 15:37:04 2020 +0000
@@ -1,23 +1,29 @@
 /*
-  Project: Blink_FET
+  Project: Blink_FET_Variable
   File: main.cpp
   Last revised by: Dr. C. S. Tritt
-  Last revision on: 4/8/19 (v. 1.0)
+  Last revision on: 5/7/20 (v. 1.0)
   
-  Turns on D4 for 0.7 second, then off for 0.3 second, repeatedly.
+  Turns on D4 for 0.7*n second, then off for 0.3*n second, repeatedly. Where n 
+  is a scaled pot setting obtained from A1.
  
   This example code is in the public domain.
 */
 #include "mbed.h"
+// Scale factor (seconds)
+double SCALE = 3.0;
+// Analog pot reading used to adjust blink interval.
+AnalogIn myA_in(A1);
 //  Construct a digital output object called myD4 and connect it to D4.
-DigitalOut myD4(D4);
+DigitalOut myD_out(D4);
   
 int main() {   // This curly brace marks the beginning of the main function.
     // Loop forever. 
     while(true) {   // This curly brace marks the start of the repeated actions.
-        myD4 = 1;   // Turn on D4 by "storing" a 1 in it.
-        wait(0.7);  // wait(x) will pause for a given number of seconds.
-        myD4 = 0;   // Turn off D4 by "storing" a 0 in it.
-        wait(0.3);  // Wait another 0.3 seconds.
+        double n = SCALE*myA_in;
+        myD_out = 1;   // Turn on D4 by "storing" a 1 in it.
+        wait(0.7*n);  // wait(x) will pause for a given number of seconds.
+        myD_out = 0;   // Turn off D4 by "storing" a 0 in it.
+        wait(0.3*n);  // Wait another 0.3 seconds.
     }  // end of repeated actions. 
 }  // end of main function.
\ No newline at end of file