Revision 1:d8d13815a008, committed 2020-07-27

Comitter:

ciaranom

Date:

Mon Jul 27 18:13:23 2020 +0000

Parent:

0:72aa19bb1aec

Commit message:

Lab Question 2.1 - Serial Communications

Changed in this revision

diff -r 72aa19bb1aec -r d8d13815a008 main.cpp
--- a/main.cpp	Sat Jun 20 11:19:11 2020 +0000
+++ b/main.cpp	Mon Jul 27 18:13:23 2020 +0000
@@ -6,18 +6,20 @@
 float brightness = 0.0;
  
 int main() {
-    pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");
+    pc.printf("Press '^' to turn LED1 brightness up, 'v' to turn it down\n");
  
     while(1) {
-        char c = pc.getc();
-        if((c == '^') && (brightness < 0.5)) {
-            brightness += 0.01;
+        char a = pc.getc(); //a is a single value taken from the last cahracter from the input stream (stdin)- the keyboard
+        pc.putc(a); //Outputs the character C on the stdout - TeraTerm in this case - Prints input from keyboard
+        
+        
+        if((a == '^') && (brightness < 0.5)) { //Code unly increases to LEDs 50% LEDs max capacity as not to risk damaging the device 
+            brightness += 0.01; //increases brigness up in increaments of 0.01 - 50 total
             led = brightness;
         }
-        if((c == 'v') && (brightness > 0.0)) {
+        //if((a == 'v') && (brightness > 0.0)) {
             brightness -= 0.01;
             led = brightness;
         } 
  
     }
-}
\ No newline at end of file