Chase Farmer / beep

Make noise with a piezo buzzer. Use a pwm pin.

Dependents:   GliderFuncTest1 DropTest

Fork of beep by Peter Drescher

Files at this revision

API Documentation at this revision

Revision 5:302fee3845f7, committed 2017-04-25

Comitter:
chasefarmer2808
Date:
Tue Apr 25 17:18:54 2017 +0000
Parent:
4:d8e14429a95f
Commit message:
buzzer

Changed in this revision

beep.cpp Show annotated file Show diff for this revision Revisions of this file
beep.h Show annotated file Show diff for this revision Revisions of this file 
diff -r d8e14429a95f -r 302fee3845f7 beep.cpp
--- a/beep.cpp	Tue Sep 11 08:21:45 2012 +0000
+++ b/beep.cpp	Tue Apr 25 17:18:54 2017 +0000
@@ -44,11 +44,14 @@
  * @param time - the duration of the tone in seconds
  */
      
-void Beep::beep(float freq, float time) {
+void Beep::beep(float freq, float time, bool infinate) {
 
     _pwm.period(1.0/freq);
     _pwm.write(0.5);            // 50% duty cycle - beep on
-    toff.attach(this,&Beep::nobeep, time);   // time to off
+    
+    if (!infinate) {
+        toff.attach(this,&Beep::nobeep, time);   // time to off
+    }
 }
 
 

diff -r d8e14429a95f -r 302fee3845f7 beep.h
--- a/beep.h	Tue Sep 11 08:21:45 2012 +0000
+++ b/beep.h	Tue Apr 25 17:18:54 2017 +0000
@@ -43,7 +43,7 @@
  * @param frequency - the frequency of the tone in Hz
  * @param time - the duration of the tone in seconds
  */
-    void beep (float frequency, float time);
+    void beep (float frequency, float time, bool infinate);
 
 /** stop the beep instantaneous 
  * usually not used