use the Pwmout Class to make a breathing led.

Dependencies:   mbed

Fork of PwmOut_HelloWorld by Mbed

Files at this revision

API Documentation at this revision

Comitter:
shiyilei
Date:
Fri Oct 17 05:43:09 2014 +0000
Parent:
1:5160ea45399b
Commit message:
use the Pwmout Class to make a breathing led.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 5160ea45399b -r f3c392d271f9 main.cpp
--- a/main.cpp	Sun Sep 21 06:39:30 2014 +0000
+++ b/main.cpp	Fri Oct 17 05:43:09 2014 +0000
@@ -1,12 +1,17 @@
+/*****************************************
+*File:breathing led
+*Creator:JacobShi
+*Time:2014/10/17
+*Description: use the pwm mode to make
+*a breathing led.
+******************************************/
 #include "mbed.h"
-
 PwmOut led(LED1);
-
 int main() {
-    // specify period first
-    led.period(4.0f);      // 4 second period
-    led.write(0.50f);      // 50% duty cycle, relative to period
-    //led = 0.5f;          // shorthand for led.write()
-    //led.pulsewidth(2);   // alternative to led.write, set duty cycle time in seconds
-    while(1);
+   led.period(1);
+   led.pulsewidth(0.5);
+    while(1) 
+    {
+ 
+    }
 }
\ No newline at end of file