Diff: main.cpp

Revision:

3:3cc8759a826f

Parent:

2:51248529975d

--- a/main.cpp	Tue Sep 11 15:24:39 2018 +0000
+++ b/main.cpp	Wed Sep 12 10:16:23 2018 +0000
@@ -4,27 +4,27 @@
 
 // Make a BlinkLEd function using Ticker
 //Wait for a character to arrive pc.getc() in the main loop,
-//if character == ‘r’  blink red LED
-//if character == ‘b’  blink blue LED
-//if character == ‘g’  blink green LED
-
+//if character == ‘r’ blink red LED
+//if character == ‘b’ blink blue LED
+//if character == ‘g’ blink green LED
 
-Ticker blink;                   //Maak ticker aan          
+Ticker blink;                   //Create the ticker       
 
-//enum states {r,b,g};            //Define possible states
-char currentState;            //Make variable currentState
+char currentState;              //Make character currentState
 
-DigitalOut ledr(LED_RED);
+DigitalOut ledr(LED_RED);       //Define DigitalOuts for every colour
 DigitalOut ledb(LED_BLUE);
 DigitalOut ledg(LED_GREEN);
 
-void BlinkLed(void)
+
+
+void BlinkLed(void)             //Define the function which makes the led blink
 {
-    switch (currentState)
+    switch (currentState)       //Make a switch which takes the character from the keyboard
     {   
-        case 'r':             //If the input character is r
-            ledr = !ledr;
-            ledb=1;
+        case 'r':               //If the input character is r..
+            ledr = !ledr;       //let the red light blink..
+            ledb=1;             //and turn off the rest
             ledg=1;
             break;
             
@@ -41,13 +41,17 @@
             break; 
             
         default:
-         //   pc.print("There is no input");  
             break;
     }           // End of switch
 } 
         
 int main()
 {
+//Start with the LED switched off
+ledr = 1;
+ledb = 1;
+ledg = 1;
+
     blink.attach(BlinkLed,1);       //Gaat elke seconde checken
     pc.baud(115200);                //Instelling voor pc