jason ji / Mbed OS mbed-os-example-blinky

this is a ping-pang blinky in 4 LED.

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

Diff: main.cpp

Revision:
14:c4162b826d08
Parent:
8:bb09890333fe
--- a/main.cpp	Wed Oct 05 05:15:02 2016 +0100
+++ b/main.cpp	Thu Oct 20 14:08:21 2016 +0000
@@ -1,12 +1,23 @@
 #include "mbed.h"
 
 DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
 
 // main() runs in its own thread in the OS
 // (note the calls to Thread::wait below for delays)
 int main() {
+        char a=1,b;
     while (true) {
-        led1 = !led1;
+        led1 = !(a^1);
+        led2 = !(a^2);
+        led3 = !(a^4);
+        led4 = !(a^8);
+        if (led1) b=1;
+        if (led4) b=0;
+        if (b) a=a<<1;
+        else a=a>>1;
         Thread::wait(500);
     }
 }