kitac_mbed_WS / Mbed 2 deprecated example_02_button Featured

ボタンを押してスピーカーから音を鳴らす

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 3:9f7097f89b78, committed 2015-08-27

Comitter:
hagi_hara
Date:
Thu Aug 27 12:58:06 2015 +0000
Parent:
2:8fb2cbbe8c0f
Commit message:
???????

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Sat Aug 22 09:59:21 2015 +0000
+++ b/main.cpp	Thu Aug 27 12:58:06 2015 +0000
@@ -14,13 +14,13 @@
 {
     button.mode(PullUp); 
     while(true) {
-        //もしButtonが押されていたら
+        //もしButtonが押されていたら(Btuttonからの入力が0Vであれば）
         if(button == 0) {
             //音を鳴らす
             speaker.period(1.0/mC);
             speaker.write(SP_ON);
-        } else {
-            //音を止める
+        } else { 
+            //そうでなければ音を止める
             speaker.write(SP_OFF);
         }
         wait(0.1);