From: scientist77017@gmail.com   
      
   On Thursday, May 16, 2019 at 11:27:16 AM UTC-5, jf...@my-deja.com wrote:   
   > On Thursday, May 16, 2019 at 7:17:30 AM UTC-7, AK wrote:   
   > >    
   > > ...I had to replace the piezo buzzer with a led....   
   > >    
   > If you can light a LED, you should be able to make noise with a piezo buzzer.   
   >    
   > Your piezo may only be a speaker that also needs an oscillator to make a   
   tone.   Does it make a click when you wire it directly to a battery in either   
   direction?  Or, when you put it on your ohm meter, does it initially show some   
   conductance but slowly    
   shows as higher resistance?   
   >    
   > If it is a sound maker, you may have it wired backwards.  Or it may be dead   
   (not likely).  If it is working, it should make noise when you wire it   
   directly to a battery with the correct polarity.   
      
   I disconnected led and substituted the buzzer.   
      
   It does beep but at a fast rate compared to what it sounds when connected   
   directly to battery.   
      
   Andy   
      
      
      
   Andy   
      
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