Revision 12:2952e72a8be9, committed 2018-01-18

Comitter:

natgovor

Date:

Thu Jan 18 16:58:02 2018 +0000

Parent:

11:012b1294c1c4

Commit message:

Implemented control of LED flashing speed by user keyboard.

Changed in this revision

diff -r 012b1294c1c4 -r 2952e72a8be9 main.cpp
--- a/main.cpp	Fri Jun 23 15:11:31 2017 -0500
+++ b/main.cpp	Thu Jan 18 16:58:02 2018 +0000
@@ -1,21 +1,38 @@
 #include "mbed.h"
  
 DigitalOut led1(LED1);
-DigitalOut led2(LED2);
+
+Serial pc(USBTX, USBRX); // tx, rx
+
 Thread thread;
- 
-void led2_thread() {
+
+void led1_thread(int *speed) {
     while (true) {
-        led2 = !led2;
-        wait(1);
+        led1 = !led1;
+        Thread::wait(*speed);
     }
 }
  
 int main() {
-    thread.start(led2_thread);
+    int speed = 200;
+    thread.start(callback(led1_thread, &speed));
     
-    while (true) {
-        led1 = !led1;
-        wait(0.5);
+    char userInput;
+    pc.printf("Enter a character>");
+    while(1) {
+        userInput = pc.getc();
+        switch(userInput) {
+            case 'f':
+                pc.printf("faster");
+                speed = speed - 50;
+                break;
+            case 's':
+                pc.printf("slower");
+                speed = speed + 50;
+                break;
+        }
+        
+        thread.start(callback(led1_thread, &speed));
+        Thread::wait(500);
     }
 }